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| the information in this document is subject to change without notice. before using this document, please confirm that this is the latest version. not all products and/or types are available in every country. please check with an nec electronics sales representative for availability and additional information. mos integrated circuit pd168116a 7-channel h-bridge driver with a micro step functi on supporting pulse input data sheet document no. s16967ej1v0ds00 (1st edition) date published december 2003 ns cp(k) printed in japan 2003 description the pd168116a is a 7-channel h-bridge driver with a micro st ep function supporting pulse input that consists of a cmos control circuit and a mos output stage. it can reduce the current c onsumption and the voltage loss at the output stage compared with a conv entional driver using bipolar transistors, thanks to employment of a mos process. the pd168116a can drive a stepping motor by inputting pulses, so that the number of signal lines necessary for controlling the motor can be decreased. the package is a 56-pin wqfn that helps reduce the mounting area and height. the pd168116a can be used to drive two stepping motors, or two dc motors and one coil. features ? seven h-bridge circuits employing power mosfet ? low-voltage driving v dd = 2.7 to 3.6 v v m = 2.7 to 5.5 v ? output on-state resistance: 1.0 ? typ., 1.5 ? max. (sum of top and bottom stage, ch1 to ch4, and ch7) 1.5 ? typ., 2.0 ? max. (sum of top and bottom stage, ch5 and ch6) ? pwm output (ch1 to ch6) , linear output (ch7) ? output current data sheet s16967ej1v0ds 2 pd168116a 1. pin configuration package: 56-pin plastic wqfn (8 x 8) 42 41 40 39 38 37 36 35 34 33 32 31 30 29 1 clk 2 /in 3b cw 2 /in 4a out 6b out 6a pgnd 56 out 5a v m56 out 5b mode 4 /in 4b mode 3 mode 2 mode 1 in 6b in 6a 234567891011121314 28 27 26 25 24 23 22 21 20 19 18 17 16 15 fil 1 fb 4 fb 3 fb 2 fb 1 out 1b v m12 out 1a pgnd 12 out 2b v m12 out 2a in 5a in 5b 43 44 45 46 47 48 49 50 51 52 53 54 55 56 in 7a fil 7 r 7 fb 7 out 7a v m7 out 7b v dd lgnd cosc oe 1 clk 1 cw 1 oe 2 /in 3a in 7b sel 7 mob 2 mob 1 out 3b v m34 out 3a pgnd 34 out 4b v m34 out 4a resetb fil 3 fil 2 data sheet s16967ej1v0ds 3 pd168116a 2. pin functions (1/2) pin no. pin name function 1 clk 2 /in 3b h-bridge 3, h-bridge 4 clk input pin/h-bridge 3 input pin b 2 cw 2 /in 4a h-bridge 3, h-bridge 4 driving direct ion input pin/h-bridge 4 input pin a 3 out 6b h-bridge 6 output pin b 4 out 6a h-bridge 6 output pin a 5 pgnd 56 h-bridge 5, h-bridge 6 gnd pin 6 out 5a h-bridge 5 output pin a 7 v m56 h-bridge 5, h-bridge 6 power supply pin 8 out 5b h-bridge 5 output pin b 9 mode 4 /in 4b mode selection pin 4/h-bridge 4 input pin b 10 mode 3 mode selection pin 3 11 mode 2 mode selection pin 2 12 mode 1 mode selection pin 1 13 in 6b h-bridge 6 input pin b 14 in 6a h-bridge 6 input pin a 15 in 5b h-bridge 5 input pin b 16 in 5a h-bridge 5 input pin a 17 out 2a h-bridge 2 output pin a 18 v m12 h-bridge 1, h-bridge 2 power supply pin 19 out 2b h-bridge 2 output pin b 20 pgnd 12 h-bridge 1, h-bridge 2 gnd pin 21 out 1a h-bridge 1 output pin a 22 v m12 h-bridge 1, h-bridge 2 power supply pin 23 out 1b h-bridge 1 output pin b 24 fb 1 current detection re sistor connection pin 1 25 fb 2 current detection re sistor connection pin 2 26 fb 3 current detection re sistor connection pin 3 27 fb 4 current detection re sistor connection pin 4 28 fil 1 filter capacitor connection pin 1 29 fil 2 filter capacitor connection pin 2 30 fil 3 ch3 reference voltage output pin (leave this pin open.) 31 resetb reset pin (low active) 32 out 4a h-bridge 4 output pin a 33 v m34 h-bridge 3, h-bridge 4 power supply pin 34 out 4b h-bridge 4 output pin b 35 pgnd 34 h-bridge 3, h-bridge 4 gnd pin 36 out 3a h-bridge 3 output pin a 37 v m34 h-bridge 3, h-bridge 4 power supply pin 38 out 3b h-bridge 3 output pin b data sheet s16967ej1v0ds 4 pd168116a (2/2) pin no. pin name function 39 mob 1 mob signal output pin 1 (open drain output) 40 mob 2 mob signal output pin 2 (open drain output) 41 sel 7 ch7 excitation mode selection pin 42 in 7b h-bridge 7 input pin b 43 in 7a h-bridge 7 input pin a 44 fil 7 amplifier operation stabilizing filter connection pin 45 r 7 amplifier operation stabilizing resistor connection pin 46 fb 7 current detection re sistor connection pin 7 47 out 7a h-bridge 7 output pin a 48 v m7 h-bridge 7 power supply pin 49 out 7b h-bridge 7 output pin b 50 v dd logic block power supply pin 51 lgnd logic block gnd pin 52 cosc chopping frequency se tting capacitor connection pin 53 oe 1 h-bridge 1, h-bridge 2 output enable pin 54 clk 1 h-bridge 1, h-bridge 2 clk input pin 55 cw 1 h-bridge 1, h-bridge 2 dr iving direction input pin 56 oe 2 /in 3a h-bridge 3, h-bridge 4 output enable pin/h-bridge 3 input pin a data sheet s16967ej1v0ds 5 pd168116a 3. block diagram out 3a v m34 out 3b pgnd 34 out 4a out 4b v dd out 2b v m12 out 2a out 1b sel 7 out 1a pgnd 12 oe 2 / in 3a lgnd out 6b v m7 out 6a out 7b out 7a out 5b v m56 out 5a pgnd 56 clk 1 cw 1 mode 1 cosc current sense 4 current sense 3 current sense 1 current sense 2 ch4 h-bridge ch3 h-bridge ch6 h-bridge ch7 h-bridge osc v m12 v m34 clk 2 / in 3b cw 2 / in 4a mode 4 / in 4b resetb fb 1 fil 1 fil 2 fb 2 mode 3 oe 1 mode 2 mob 1 mob 2 in 7b in 7a in 6a in 6b in 5a in 5b fil 3 fb 3 fb 4 fb 7 fil 7 r 7 control and pre-driver tsd uvlo ch1 h-bridge ch2 h-bridge ch5 h-bridge ch1/ch2 control ch3/ch4 control data sheet s16967ej1v0ds 6 pd168116a 4. standard connection example m 3 to 5 v 22 f 1000 pf x 2 5 k ? x 4 100 k ? x 2 10 k ? 10 k ? 1 ? m 3 to 5 v 22 f (at 100 khz pwm) 330 pf 150 pf 3 to 5 v 22 f 3 v 10 f m 3 to 5 v 22 f m 42 41 40 39 38 37 36 35 34 33 32 31 30 29 1234567891011121314 28 27 26 25 24 23 22 21 20 19 18 17 16 15 fil 1 fb 4 fb 3 fb 2 fb 1 out 1b v m12 out 1a pgnd 12 out 2b v m12 out 2a in 5a in 5b 43 44 45 46 47 48 49 50 51 52 53 54 55 56 in 7a fil 7 r 7 fb 7 out 7a v m7 out 7b v dd lgnd cosc oe 1 clk 1 cw 1 oe 2 /in 3a in 7b sel 7 mob 2 mob 1 out 3b v m34 out 3a pgnd 34 out 4b v m34 out 4a resetb fil 3 (open) fil 2 clk 2 /in 3b cw 2 /in 4a out 6b out 6a pgnd 56 out 5a v m56 out 5b mode 4 /in 4b mode 3 mode 2 mode 1 in 6b in 6a v dd v dd cautions 1. be sure to connect all of the pins which have more than one. 2. the constants shown in the above diagra m are provided as examples only. perform design based on thorough evaluation with the actual mach ine, and change the underlined constants as necessary. 3. a pull-down resistor (50 to 200 k ? ) is connected to the mode 1 , mode 2 , mode 3 , sel 7 , oe 1 , clk 1 , cw 1 , oe 2 /in 3a , clk 2 /in 3b , cw 2 /in 4a , mode 4 /in 4b , in 5a , in 5b , in 6a , in 6b , in 7a , and in 7b pins. fix these input pins to g nd when they are not used. data sheet s16967ej1v0ds 7 pd168116a 5. system application diagram m m 10 k ? 1 ? 10 k ? 150 pf 3 to 5 v 22 f out 3a v m34 out 3b pgnd 34 out 4a out 4b v dd out 2b v m12 out 2a out 1b sel 7 out 1a pgnd 12 oe 2 / in 3a lgnd 3 v out 6b v m7 out 6a out 7b out 7a out 5b v m56 out 5a pgnd 56 clk 1 cw 1 mode 1 cosc 6 current sense 4 current sense 3 current sense 1 current sense 2 ch4 h-bridge ch3 h-bridge ch6 h-bridge ch7 h-bridge osc v m12 v m34 clk 2 / in 3b cw 2 / in 4a mode 4 / in 4b resetb fb 1 fil 1 fil 2 fb 2 mode 3 oe 1 mode 2 mob 1 mob 2 in 7b in 7a in 6a in 6b in 5a in 5b fil 3 fb 3 fb 4 fb 7 fil 7 r 7 control and pre-driver tsd uvlo cpu ch1 h-bridge ch2 h-bridge ch5 h-bridge m m ch1/ch2 control ch3/ch4 control 10 f 100 k ? x 2 5 k ? x 2 5 k ? 1000 pf 1000 pf 330 pf caution the constants shown in th e above diagram are provided as exa mples only. perf orm design based on thorough evaluation with the actual machine. data sheet s16967ej1v0ds 8 pd168116a 6. function operation table 6.1 power save function this ic can be placed in the power-save mode by making mode 1 , mode 2 , mode 3 , and mode 4 high level. this function allows holding of the excitation position wh en the stepping motor mode is selected and the operation to be started from where the excitation pos ition is held when the power-save mode is cleared. in the power-save mode, the current consumption is reduced to 20 a typ. because the internal circui ts other than uvlo are stopped. in the power-save mode, only input of the resetb pin is acknowledged, and the other input signals are ignored. the operation modes of ch1 to ch4 can be set by a combination of mode 1 to mode 4 . for the combination of the mode pins, refer to table 6 ? 1. mode pin truth table . table 6 ? 1. mode pin truth table mode 1 mode 2 mode 3 mode 4 operation mode (/in 4b ) ch1, ch2 ch3, ch4 l l l in 4b input 2-phase excitation general-purpose driving l l l l l h 1-2 phase excitation general-purpose driving l l h l h l micro step general-purpose driving l h l l h h l 2-phase excitation 2-phase excitation l h h h 1-2 phase excitation 1-2 phase excitation h l l l 2-phase excitation (current limiting) 2-phase excitation (current limiting) h l l h 1-2 phase excitation (current limiting) 1-2 phase excitation (current limiting) h l h l 2-phase excitation micro step h l h h 1-2 phase excitation micro step h h l l micro step 2-phase excitation h h l h micro step 1-2 phase excitation h h h l micro step micro step h h h h power save mode remark h: high level, l: low level data sheet s16967ej1v0ds 9 pd168116a 6.2 ch1, ch2 (dedicated to stepping motor) resetb clk 1 cw 1 oe 1 operation mode h l h pulse progress, cw mode h h h pulse progress, ccw mode h x x l output hi-z (internal information is held.) l x x x reset mode (output hi-z) remark x: high level or low level, hi-z: high impedance 6.3 ch3, ch4 (selecting stepping motor, dc motor and coil driving) data sheet s16967ej1v0ds 10 pd168116a 6.4 ch5, ch6 resetb in 5a /in 6a in 5b /in 6b out 5a /out 6a out 5b /out 6b operation mode h l l z z stop h l h l h reverse h h l h l forward h h h h h brake l x x reset mode (output hi-z) load on v m ab off off on gnd forward load off v m ab on on off gnd reverse load off v m ab off off off gnd stop load on v m ab on off off gnd brake data sheet s16967ej1v0ds 11 pd168116a 6.5 ch7 resetb sel 7 in 7a in 7b out 7a out 7b h-bridge output state q1 q2 q3 q4 h h l l z z off off off off h h l h l h off on on off (linear) (linear) h h h l h l on off off on (linear) (linear) h h h l h h on on off off h l weak excitation operation when sel 7 = h (function is equivalent.) l x x x z z off off off off q1 v m7 out 7a out 7b q2 q3 q4 ? + ? + 6.6 sel 7 pin the current that flows into ch7 can be changed by setting the sel 7 pin. sel 7 operation mode l weak excitation mode (current 2/3 of the normal setting flows.) h normal operation mode data sheet s16967ej1v0ds 12 pd168116a 7. command input timing chart figure 7 ? 1. in the micro step mode resetb clk cw oe pulse out (internal) chopping pulse mob 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 28 29 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 16 15 14 13 12 11 10 reset state reset state cw mode ccw mode output hi-z 27 17 9 data sheet s16967ej1v0ds 13 pd168116a table 7 ? 1. relationship between revolution angle, pha se current, and vector amount (64 micro steps) step revolution phase a - phase current phase b - phase current vector angle amount min. typ. max. min. typ. max. typ. 0 0 ? 100 ? ? 0 3.8 100 1 5.625 94.5 100 104.5 2.5 9.8 17.0 100.48 2 11.250 93.2 98.1 103.0 12.4 19.5 26.5 100 3 16.875 90.7 95.7 100.7 22.1 29.0 36.1 100.02 4 22.500 87.4 92.4 97.4 31.3 38.3 45.3 100.02 5 28.125 83.2 88.2 93.4 40.1 47.1 54.1 99.99 6 33.750 78.1 83.1 88.1 48.6 55.6 62.6 99.98 7 39.375 72.3 77.3 82.3 58.4 63.4 68.4 99.97 8 45 65.7 70.7 75.7 65.7 70.7 75.7 99.98 9 50.625 58.4 63.4 68.4 72.3 77.3 82.3 99.97 10 56.250 48.6 55.6 62.6 78.1 83.1 88.1 99.98 11 61.875 40.1 47.1 54.1 83.2 88.2 93.2 99.99 12 67.500 31.3 38.3 45.3 87.4 92.4 97.4 100.02 13 73.125 22.1 29.0 36.1 90.7 95.7 100.7 100.02 14 78.750 12.4 19.5 26.5 93.2 98.1 103.0 100 15 84.375 2.5 9.8 17.0 94.5 100 104.5 100.48 16 90 ? 0 3.8 ? 100 ? 100 caution 0 shows the excitation start position a fter release of reset. each value is an ideal value and is not a guarantee value. data sheet s16967ej1v0ds 14 pd168116a 8. functional deployment 8.1 reset function an initialization operation is performed and all the internal data is cleared when resetb = l. the output remains in the hi-z state. when resetb = h, signals can be input. be sure to perform a reset operation after turning on power supply. when resetb = l, the internal circuitry is stopped whenev er possible, so that the se lf current consumption can be reduced. when the external input signal is stoppe d, the current consumption can be lowered to 1 a max. immediately after release of reset, excitation is start ed from the position where the current of ch1 is 100% and the current of ch2 is 0%, in the micro st ep drive mode and 1-2 phase excitation drive mode. in the 2-phase excitation drive mode, excitation is started from the posi tion where the currents of ch1 and ch2 are 100%. 8.2 2-phase excitation drive mode and 1-2 phase excitation drive mode in the 2-phase excitation drive mode, current of 100% is allowed to flow into ch1 and ch2 simultaneously. in the 1- 2 phase excitation drive mode, the motor can be driven at a hi gher torque by allowing a current to flow so that the synthesized torque of ch1 and ch2 is the same as the torque at phase 1 position. the 2- phase excitation, 1-2 phase excitation, and micro step driving modes are selected by the mode 1 to mode 4 pins. note that 100% (= saturation drive mode) and a mode in which the current set by the sense resistor is used can be selected by the mode pin. current control is performed by chopping drive. 8.3 micro step drive mode of stepping motor the current flowing into the h-bridge is constant by using a vector value so that one period can be stopped in 1/64 steps. this function is provided to realize hi gh-accuracy positioning control of a stepping motor. to realize this micro step driving, the followi ng functions are internally realized by the driver. ? detection of current flowing into each ch annel by sense resistor as voltage value ? synthesizing half the dummy sine waveform generated by the internal d/a with pwm oscillation waveform for chopping operation ? driver stage performing pwm drive based on result of comparing detected vo ltage and synthesized waveform because the internal dummy sine wave consists of 64 steps per period, it can be used to drive a stepping motor using 64 divisions. the micro step driv e mode, 2-phase excitation drive mode, and 1-2 phase excitation drive mode can be selected by using external pins. data sheet s16967ej1v0ds 15 pd168116a figure 8 ? 1. concept of micro step drive operation a m + 8.4 output enable (oe) pin the oe 1 (oe 2 ) pin can be used to forcibly stop pulse output of ch1 and ch2 (or ch3 and ch4) . when oe 1 (oe 2 ) = l, the output is forcibly made to go into hi-z. because the internal information is held, however, the motor position information is reco rded unless reset is performed. to drive a motor, make sure that oe 1 (oe 2 ) = h. 8.5 mob output in the micro step drive m ode, l is output from the mob 1 (mob 2 ) pin when the current of c h1 (ch3) or ch2 (ch4) is 100%. in the 2-phase excitation or 1-2 phase excitation drive mode, l is output when the current of ch1 and ch2 is +100%. by monitoring the mob output, the excitation posit ion of the stepping motor can be checked. when oe 1 (oe 2 ) = l, mob 1 (mob 2 ) = hi-z. 8.6 current detection resistor connection (fb) pin (1) ch1 to ch4 the current detection resistor is c onnected when current driving is necessary. it is used for micro step driving and solenoid driving. the current that flows into the output is {500 mv (reference voltage) /fb pin resistance x 1000}. example) where fb = 4.7 k ? output current = 500 (mv) /4.7 (k ? ) x 1000 ? 106 (ma) this means constant current driving of about 106 ma. when current driving is not performed, connect the fb pin to gnd. data sheet s16967ej1v0ds 16 pd168116a (2) ch7 connect the current detection circuit bet ween the source of the driver low si de and gnd. because the circuit is configured to detect current directly, connect a detection resistor of low resistance (1 ? maximum) . the current that flows into the output is {200 mv (reference voltage) /fb 7 pin resistance} (when sel 7 = h) . example) where fb 7 = 0.5 ? output current = 200 (mv) /0.5 ( ?) = 400 (ma) this means constant current driving of 400 ma. because only ch7 employs the linear drive mode and direct ly detects the output current, the current accuracy is determined only by the external resistor and the offset of the curr ent control amplifier. 8.7 undervoltage lockout (uvlo) circuit this function is to forcibly stop the operati on of the ic to prevent malfunctioning if v dd drops. when uvlo operates, the ic is in the reset status. if v dd drops abruptly in the order of several s, this function may not operate. 8.8 overheat protection (tsd) circuit this function is to forcibly stop the operation of the ic to protect it from destruction du e to overheating if the chip temperature of the ic rises. the overheat protection circuit operates when the chip temperature rises to 150 c or more. when overheat is detected, all the circuits are stopped. when resetb = l or when uvlo is detec ted, the overheat protection circuit does not operate. 8.9 power up sequence this ic has a circuit that prevents current from flowing into the v m pin when v dd = 0 v. therefore, the current that flows into the v m pin is cut off when v dd = 0 v. because the v dd pin voltage and v m pin voltage are monitored, a current of 3 a max. flows into the v m pin when v dd is applied. data sheet s16967ej1v0ds 17 pd168116a 9. operation description 9.1 output current setting the peak value of the output current (100% of the current of ch1 (ch3) or ch2 (ch4) ) is determined by resistor r fb connected to fb 1 (fb 3 ) or fb 2 (fb 4 ) . this ic has reference power supply v ref (500 mv typ.) for current comparison, and performs driving with the current obtained from r fb and v ref as the peak output current. peak output current: i max (a) ? v ref (v) r fb ( ? ) x 1000 9.2 pulse output the motor is driven by inputting a pulse to the clk 1 (clk 2 ) pin. the operation advances by one pulse at the rising edge of the clk 1 (clk 2 ) signal. 9.3 motor revolution direction setting clk 1 (clk 2 ) is used to specify the motor revolution direction. in the cw mode, the current of ch2 (ch4) is output, 90 degrees in p hase behind the current of ch1 (ch3) . in the ccw mode, the current of ch2 (ch4) is output, 90 degrees in phase ahead of the current of ch1 (ch3) . 9.4 selecting 2-phase excita tion/micro step drive mode the 2-phase excitation, 1-2 phase excitation, or mi cro step drive mode can be se lected by using the mode 1 to mode 4 pins. refer to table 6 ? 1. mode pin truth table for details. immediately after release of reset, the ic is initializ ed. in the 1-2 phase excita tion and micro step drive mode, excitation is started from the position where the output current of ch1 (ch3) is 100% and output current of ch2 (ch4) is 0%. in the 2-phase excitation drive mode, excitation is st arted from the position where th e currents of both ch1 (ch3) and ch2 (ch4) are +100%. when the mode is changed from the micro step driving to the 2-phase excitation (or 1-2 phase excitation) , the position of micro step is held until clk is input. pulse output is started by the first clk input, the position is skipped to the 2-phase position of the next quadrant (or to the closest 1-2 phase position at the rotation direction destination) , and driving is started. figure 9 ? 1. concept of change operation, micro step driving ? 2-phase excitation (1-2 phase excitation) . microstep stop position (example 1) microstep stop position (example 2) 2-phase excitation stop position skipes to the next quadrant (4) (3) (2) (1) data sheet s16967ej1v0ds 18 pd168116a 10. note on correct use 10.1 transmitting data data input when resetb = l is ignored. 10.2 pin processing of unused circuit the input/output pins of an unused circui t must be processed as specified below. a v m power supply pin is provided for each output circuit. the current consumption of the internal circuit can be reduced by dropping the v m power of the unused circuit to gnd. however, if there are multiple power supply pins, be sure to connect all of them to the same potential. data sheet s16967ej1v0ds 19 pd168116a 11. stepping motor driving waveform figure 11 ? 1. 2-phase excitation output mode figure 11 ? 2. 1-2 phase excitation output mode phase a current 100% 012345678 ? 100% 100% 012345678 ? 100% phase b current 100% 012345678 ? 100% 100% 012345678 ? 100% phase a current phase b current 70% of a current setting 70% of a current setting 70% of a current setting 70% of a current setting remarks 1. solid line: output duty 100% drive, dotted line: curr ent control drive (the curr ent is in accordance with the current setting.) 2. the horizontal axis of the above charts indica tes the number of steps. the above charts show an example in the cw (forward) mode. the current flowing into phases a and b is positive in the direction from out pin a to out pin b, and negative in the direction from out pin b to out pin a. data sheet s16967ej1v0ds 20 pd168116a figure 11 ? 3. micro step drive mode ? 99.5 99.5 ? 95.7 95.7 100 98.1 92.4 ? 92.4 ? 98.1 ? 100 ? 88.2 88.2 ? 83.1 83.1 ? 77.3 77.3 ? 70.7 70.7 ? 63.4 63.4 ? 55.6 55.6 ? 47.1 47.1 ? 38.3 38.3 ? 29.0 29.0 ? 19.5 19.5 ? 9.8 9.8 0 ? 99.5 99.5 ? 95.7 95.7 100 98.1 92.4 ? 92.4 ? 98.1 ? 100 ? 88.2 88.2 ? 83.1 83.1 ? 77.3 77.3 ? 70.7 70.7 ? 63.4 63.4 ? 55.6 55.6 ? 47.1 47.1 ? 38.3 38.3 ? 29.0 29.0 ? 19.5 19.5 ? 9.8 9.8 0 ch2 current ch1 current reset position 0 5 10 15 20 25 30 35 40 45 50 55 60 65 0 5 10 15 20 25 30 35 40 45 50 55 60 65 remark the horizontal axis of the above charts indicates the number of steps. the abo ve charts show an example in the cw (forward) mode. the current flowing into phases a and b is positive in the direction from out pin a to out pin b, and negative in the direction from out pin b to out pin a. data sheet s16967ej1v0ds 21 pd168116a 12. electrical specifications absolute maximum ratings (t a = 25 c, glass epoxy board of 100 mm x 100 mm x 1 mm with copper foil area of 15%) parameter symbol condition rating unit power supply voltage v dd control block ? 0.5 to +6.0 v v m motor block ? 0.5 to +6.0 v input voltage v in ? 0.5 to v dd +0.5 v output pin voltage v out motor block 6.2 v dc output current (ch1 to 6ch) i d(dc) dc (during output independent operation) 0.4 a/ch dc output current (ch7) i d(dc) dc (during output independent operation) 0.5 a/ch instantaneous output current i d(pulse) pw < 10 ms, duty cycle 20% 0.7 a/ch (during output independent operation) power consumption p t 1.0 w peak junction temperature t ch(max) 150 c storage temperature t stg ? 55 to +150 c remark the overheat protection circuit operates at t ch > 150 c. when overheat is detec ted, all the circuits are stopped. the overheat protection circuit does not operate at reset or on detection of ulvo. caution product quality may suffer if the absolute maximum rating is exceeded even momentarily for any parameter. that is, the ab solute maximum ratings are rated valu es at which the product is on the verge of suffering physical damage , and therefore the product must be used under conditions that ensure that the absolute m aximum ratings are not exceeded. recommended operating conditions (t a = 25 c, glass epoxy board of 100 mm x 100 mm x 1 mm with copper foil area of 15%) parameter symbol condition min. typ. max. unit power supply voltage v dd control block 2.7 3.6 v v m motor block 2.7 5.5 v input voltage v in 0 v dd v dc output current (ch1 to 6ch) i d(dc) dc (during output independent operation) ? 0.3 +0.3 a/ch dc output current (ch7) i d(dc) dc (during output independent operation) ? 0.4 +0.4 a/ch instantaneous output current i d(pulse) pw < 10 ms, duty cycle 20% ? 0.6 +0.6 a/ch (during output independent operation) capacitor capacitance cosc 330 pf mob pin output sink current i mob open-drain output 5 ma logic input frequency f in 100 khz operating temperature range t a ? 10 75 c data sheet s16967ej1v0ds 22 pd168116a electrical characteristics (u nless otherwise specified, t a = 25 c, v dd = 3.0 v, v m = 3.0 v) parameter symbol condition min. typ. max. unit v dd pin current in standby mode i dd(stb) resetb pin: low level 1.0 a v dd pin current in during operation i dd(act) resetb pin: high level 5.0 ma high-level input current i ih v in = v dd 60 a low-level input current i il v in = 0 v ? 1.0 a input pulldown resistance r ind 50 200 k ? high-level input voltage v ih 2.7 v v dd 3.6 v 0.7 x v dd v low-level input voltage v il 2.7 v v dd 3.6 v 0.3 x v dd v cosc oscillation frequency f osc cosc = 330 pf 100 khz h-bridge on-state resistance r on i m = 0.3 a, sum of upper and lower stages (ch1 to ch4, and ch7) 1.0 1.5 ? r on56 i m = 0.3 a, sum of upper and lower stages (ch5 and ch6) 1.5 2.0 ? output leakage current note1 i m(off) per v m pin, all control pin: low level 1.0 a low-voltage detection voltage v dds 1.7 2.5 v internal reference voltage note2 v ref ch1 to ch4 450 500 550 mv v ref7 ch7 180 200 220 mv current detection ratio note2 i m = 0.1 a, with sense resistor of 2 k ? , ch1 to ch4 950 1050 1150 output turn-on time t on r l = 20 ? 0.02 0.35 1.0 s output turn-off time t off 0.02 0.35 1.0 s notes 1. this ic has a circuit that prevent s current from flowing into the v m pin when v dd = 0 v. 2. the motor current accuracy varies depending on the mo tor actually used. with this ic, the total of the reference voltage evrmax error and the current sense circuit error is within 10%. data sheet s16967ej1v0ds 23 pd168116a 13. package drawing item dimensions d e f hd he t 7.75 7.75 0.64 0.23 0.05 0.20 0.03 0.14 ? 0.20 0.50 0.40 0.10 0.05 0.08 0.10 0.625 0.625 0.17 0.14 ? 0.16 0.20 8.00 8.00 0.20 p56k9-50-9b4 0.03 +0.02 ?0.025 (unit:mm) a2 b b1 c c1 c2 e lp x y y1 zd ze a1 0.67 +0.08 ?0.04 a detail of p part a1 c a2 lp 0.08min. 0.08min. terminal section b1 b c1 c2 42 29 15 14 28 43 56 1 4 ? c0.5 x4 hd he e zd ze d /2 d /2 e /2 he /2 hd f s a b x4 t s a b p a s y1 s s y b e a s x bab m 56-pin plastic wqfn (8x8) notes 1 "t" and "f" excludes mold flash 2 although there are 4 terminals in the corner part of a package, these terminals are not designed for interconnection, but for manufacturing process of the package, therefor do not intend to solder these 4 terminals, solderablity of the 4 terminals are not guaranteed. data sheet s16967ej1v0ds 24 pd168116a 14. recommended soldering conditions the pd168116a should be soldered and mounted under the following recommended conditions. for soldering methods and conditions other than thos e recommended below, contact an nec electronics sales representative. for technical information, see the following website. semiconductor device mount manual (http: //www.necel.com/pkg/e n/mount/index.html) type of surface mount device pd168116ak9-9b4-a: 56-pin plastic wqfn (8 x 8) process conditions symbol infrared reflow package peak temperature: 260 c, time: 60 seconds max. (at 220 c or higher) , count: three times or less, exposure limit: 3 days note (after that, prebake at 125 c for 10 hours) , flux: rosin flux with low chlorine (0.2 wt% or below) recommended. data sheet s16967ej1v0ds 25 pd168116a notes for cmos devices 1 precaution against esd for semiconductors note: strong electric field, when exposed to a mos device, can cause destruction of the gate oxide and ultimately degrade the device operation. steps must be taken to stop generation of static electricity as much as possible, and quickly dissipate it once, when it has occurred. environmental control must be adequate. when it is dry, humidifier should be used. it is recommended to avoid using insulators that easily build static electricity. semiconductor devices must be stored and transported in an anti-static container, static shielding bag or conductive material. all test and measurement tools including work bench and floor should be grounded. the operator should be grounded using wrist strap. semiconductor devices must not be touched with bare hands. similar precautions need to be taken for pw boards with semiconductor devices on it. 2 handling of unused input pins for cmos note: no connection for cmos device inputs can be cause of malfunction. if no connection is provided to the input pins, it is possible that an internal input level may be generated due to noise, etc., hence causing malfunction. cmos devices behave differently than bipolar or nmos devices. input levels of cmos devices must be fixed high or low by using a pull-up or pull-down circuitry. each unused pin should be connected to v dd or gnd with a resistor, if it is considered to have a possibility of being an output pin. all handling related to the unused pins must be judged device by device and related specifications governing the devices. 3 status before initialization of mos devices note: power-on does not necessarily define initial status of mos device. production process of mos does not define the initial operation status of the device. immediately after the power source is turned on, the devices with reset function have not yet been initialized. hence, power-on does not guarantee out-pin levels, i/o settings or contents of registers. device is not initialized until the reset signal is received. reset operation must be executed immediately after power-on for devices having reset function. pd168116a reference documents nec semiconductor device reliability/ quality control system (c10983e) quality grades on nec se miconductor devices (c11531e) the information in this document is current as of december, 2003. the information is subject to change without notice. for actual design-in, refer to the latest publications of nec electronics data sheets or data books, etc., for the most up-to-date specifications of nec electronics products. not all products and/or types are available in every country. please check with an nec electronics sales representative for availability and additional information. no part of this document may be copied or reproduced in any form or by any means without the prior written consent of nec electronics. nec electronics assumes no responsibility for any errors that may appear in this document. nec electronics does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from the use of nec electronics products listed in this document or any other liability arising from the use of such products. no license, express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of nec electronics or others. descriptions of circuits, software and other related information in this document are provided for illustrative purposes in semiconductor product operation and application examples. the incorporation of these circuits, software and information in the design of a customer's equipment shall be done under the full responsibility of the customer. nec electronics assumes no responsibility for any losses incurred by customers or third parties arising from the use of these circuits, software and information. while nec electronics endeavors to enhance the quality, reliability and safety of nec electronics products, customers agree and acknowledge that the possibility of defects thereof cannot be eliminated entirely. to minimize risks of damage to property or injury (including death) to persons arising from defects in nec electronics products, customers must incorporate sufficient safety measures in their design, such as redundancy, fire-containment and anti-failure features. nec electronics products are classified into the following three quality grades: "standard", "special" and "specific". the "specific" quality grade applies only to nec electronics products developed based on a customer- designated "quality assurance program" for a specific application. the recommended applications of an nec electronics product depend on its quality grade, as indicated below. customers must check the quality grade of each nec electronics product before using it in a particular application. "standard": computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots. "special": transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support). "specific": aircraft, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems and medical equipment for life support, etc. the quality grade of nec electronics products is "standard" unless otherwise expressly specified in nec electronics data sheets or data books, etc. if customers wish to use nec electronics products in applications not intended by nec electronics, they must contact an nec electronics sales representative in advance to determine nec electronics' willingness to support a given application. (note) (1) "nec electronics" as used in this statement means nec electronics corporation and also includes its majority-owned subsidiaries. (2) "nec electronics products" means any product developed or manufactured by or for nec electronics (as defined above). ? ? ? ? ? ? m8e 02. 11-1 |
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