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AT5801
Preliminary
4-Channel driver + Power Controller Pin Assignments
10F-1, No.55, Tung Kuang Road, Hsinchu, Taiwan, R.O.C. Tel: 886-3-575-3058 Fax: 886-3-575-3015 3
Email: service@aimtron.com.tw http://www.aimtron.com.tw 01/08/05
AT5801
Preliminary
4-Channel driver + Power Controller
Absolute maximum ratings (Ta = 25oC)
Parameter Supply voltage Driver output current Power dissipation Operating temperature range Storage temperature range
Derating is done 5mW/
o
Symbol VCC Io Pd Topr Tstg
Limits 13.5 500 625* 0~+80 -55~+150
unit V mA mW o C o C
C for operation above Ta=25oC.
Recommended operating conditions (Ta = 25oC)
Parameter Control circuit power supply voltage Pre-driver power supply voltage H-bridge power supply voltage Power unit power supply voltage Charging circuit power supply voltage Ambient temperature Symbol VSYS1 VSYS2 HVCC BATT CHGVCC Ta Min. 2.7 2.7 1.5 3.0 0 Typ. 3.2 3.2 PWM 2.4 4.5 25 Max. 5.5 5.5 BATT 8.0 8.0 70 unit V V V V V o C
Electrical characteristics (Unless specified particular, Ta = 25oC, BATT=2.4V, VSYS1= VSYS2=3.2V, VREF=1.6V, CHGVCC=0V, CLK=88.2KHz )
Parameter Total circuit BATT stand-by current IST 0 2.5 4.7 4.1 0.65 3 4.0 6.4 5.5 2.0 A mA mA mA mA BATT=9V VSYS1=VSYS2=Vref=0V HVcc=0.45V, MUTE34=3.2V HVcc=0.45 MUTE34=3.2V, EI=0V HVcc=0.45V, MUTE34=3.2V CHGVcc=4.5V, ROUT=OPEN Symbol Min. Typ. Max. Unit Conditions
BATT supply current IBAT at no-load VSYS1 supply current ISYS1 at no-load VSYS2 supply current ISYS2 at no-load CHGVCC supply current I at no-load CGVCC H-bridge driver section Voltage gain (CH134) (CH2) Gain error by polarity IN pin (CH134) Input resistance (CH2) Maximum output voltage Lower transistor saturated voltage Upper transistor saturated voltage GVC134 GVC2 Gvc RIN134 RIN2 VOUT VSATL VSATU
12 21.5 2 9 6 1.9
14 23.5 0 11 7.5 2.1 240 240
16 24.5 2 13 9 400 400
dB dB dB k k V mV mV
IN=1.7 and 1.8V RL=8HVCC=BATT=4V IN=03.2V IO=300mAIN=0 and 3.2V IO=300mAIN=0 and 3.2V
10F-1, No.55, Tung Kuang Road, Hsinchu, Taiwan, R.O.C. Tel: 886-3-575-3058 Fax: 886-3-575-3015 4
Email: service@aimtron.com.tw http://www.aimtron.com.tw 01/08/05
AT5801
Preliminary
4-Channel driver + Power Controller
8 Input offset voltage VOI Output (CH134) VOO134 50 offset voltage (CH2) VOO2 130 10 Dead zone VDB BRAKE1 ON VBRON 2.0 threshold voltage BRAKE1 OFF VBROFF threshold voltage MUTE2 ON VM2ON 2.0 threshold voltage MUTE2 OFF VM2OFF threshold voltage MUTE34 ON VM34ON threshold voltage MUTE2 OFF VM34OFF 2.0 threshold voltage VREF ON VrefON 1.2 threshold voltage VREF OFF VrefOFF threshold voltage BRAKE1 IBRAKE1 4 brake current PWM power supply driving section PSW sink current IPSW 10 HVCC level shift voltage VSHIF 0.35 HVCC leak current IHLK 1/60 PWM amplifier GPWM transfer gain DC/DC converter section (Error amplifier section) VSYS1 pin VSITH threshold voltage EO pin output voltage H VEOH EO pin output voltage L VEOL (Short-circuit protection) SPRT pin voltage(normal) VSPR SPRT pin current 1 EO=H ISPR1 SPRT pin current 2 EO=L ISPR2 SPRT pin current 3 ISPR3 (over-voltage) SPRT pin impedance RSPR SPRT pin VSPTH threshold voltage Over-voltage VHVPR protection detect (Transistor driving section) SW pin VSW1H output voltage 1H 0 0 0 0 7 13 0.45 0 1/50 8 50 130 10 0.8 0.8 0.8 0.8 10 17 0.55 5 1/40 mV mV mV mV V V V V V V V V mA mA V
Vref=IN=1.6V
IN1=1.8V IN1=1.8V IN2=1.8V IN2=1.8V IN3= IN4=1.8V IN3= IN4=1.8V IN1=IN2=IN3=IN4=1.8V IN1= IN2=IN3=IN4=1.8V BRAKE1 pin The current Difference between "H" and "L"
IN1=2.1V IN1=1.8V,HVCCOUT1F HVCC=9V A VSYS1= VSYS2=BATT=0V 1/k IN1=1.8V, HVCC=1.2~1.4V
3.05 1.4 6 12 12 175 1.10 8.0
3.20 1.6 0 10 20 20 220 1.20 8.4
3.35 0.3 0.1 16 32 32 265 1.30 9.0
V V V EI=0.7V, IO=100A EI=1.3V, IO=100A
V EI=1.3V A EI=0.7V A EI=1.3V, OFF=0V A EI=1.3V, BATT=9.5V k V V EI=0.7V, CT=0V BSEN pin voltage BATT=CT=1.5V, IO=2mA, VSYS1= VSYS2=0V, at start Email: service@aimtron.com.tw http://www.aimtron.com.tw 01/08/05
0.78
0.98
1.13
V
10F-1, No.55, Tung Kuang Road, Hsinchu, Taiwan, R.O.C. Tel: 886-3-575-3058 Fax: 886-3-575-3015 5
AT5801
Preliminary
4-Channel driver + Power Controller
SW pin output voltage 2H SW pin output voltage 2L SW pin oscillating frequency 1 SW pin oscillating frequency 2 SW pin oscillating frequency 3 SW pin minimum pulse width Pulse duty at start Max. pulse duty at self-running Max. pulse duty at CLK synchronization (Dead time section) DEAD pin impedance DEAD pin output voltage (Interface section) OFF pin threshold voltage OFF pin bias current START pin ON threshold voltage START pin OFF threshold voltage START pin bias current CLK pin threshold voltage H CLK pin threshold voltage L CLK pin bias current (Starter circuit section) Starter switching voltage VSTMM 2.3 130 1.63 2.1 1.7 25 25 2.5 200 1.83 2.2 1.8 50 50 2.7 300 2.03 2.3 1.9 100 100 0.5 1.0 V mV V V V mV mV V VSEL=0V ISEL=2A VSEL=0V ISEL=2A IO=1mA, BSEN=1V VSYS1= VSYS2=0V~3.2V, START=0V START=0V VSW2H VSW2L fSW1 fSW2 fSW3 TSWMIN DSW1 DSW2 DSW3 RDEAD VDEAD VOFTH IOFF VSTATH1 VSTATH2 ISTART VCLKTHH VCLKTHL ICLK 1.0 80 60 0.01 40 70 65 52 0.78 75 BATT 0.3 13 2.0 1.50 0.3 100 70 88.2 50 80 75 65 0.88 95 16 0.45 150 82 0.6 60 90 85 78 0.98 VSYS1 2.0 115 BATT 1.0 19 0.8 10 V V KHz CT=0V, IO=10mA, EI=0.7V, SPRT=0V CT=2V, IO=10mA, CT=470pF, VSYS1= VSYS2=0V, at start
KHz CT=470pF, CLK=0V KHz CT=470pF sec CT=470pF, EO=0.5~0.7V sweep k V V EI=1.3V CT=470pF, VSYS1= VSYS2=0V EI=0.7V, CT=470pF, CLK=0V EI=0.7V, CT=470pF
A OFF=0V V V VSYS1= VSYS2=0V, CT=2V VSYS1= VSYS2=0V, CT=2V
A START=0V V V A CLK=3.2V
Starter switching VSNHS hysteresis width Discharge release voltage VDIS (Empty detection section) Empty detection voltage 1 VEMPT1 Empty detection voltage 2 VEMPT2 Empty detection VEMHS1 hysteresis width 1 Empty detection VEMHS2 hysteresis width 2 EMP pin output voltage VEMP EMP pin IEMPL output leak current
A BSEN=2.4V Email: service@aimtron.com.tw http://www.aimtron.com.tw 01/08/05
10F-1, No.55, Tung Kuang Road, Hsinchu, Taiwan, R.O.C. Tel: 886-3-575-3058 Fax: 886-3-575-3015 6
AT5801
Preliminary
4-Channel driver + Power Controller
BSEN pin input resistance RBSEN BSEN pin leak current IBSNL SEL pin detection voltage VSELTH SEL pin detection current ISELT (Reset circuit) VSYS1 reset HSRT threshold voltage ratio Reset detection VRSTHS hysteresis width RESET pin output voltage VRST RESET pin pull up RRST resistance AMUTE pin output VAMT1 voltage 1 AMUTE pin output VAMT2 voltage 2 AMUTE pin pull down RAMT resistance (Operational amplifier section) Input bias current IBIAS Input offset voltage VOIOP High level output voltage VOHOP Low level output voltage VOLOP Output drive current ISOU (source) Output drive current ISIN (sink) Open loop voltage gain GVO Slew rate SR (Charging circuit section) RCHG pin bias voltage VRCHG RCHG pin output RRCHG resistance SEL pin leak current 1 ISELLK SEL pin leak current 2 ISELLK SEL saturation voltage VSELCG 17 1.5 2 23 27 1.0 VSEL=0V VSYS1=VSYS2=0V, A BSEN=4.5V V VSELTH=BATT-SEL, BSEN=2V A Ratio of VSYS1 voltage and error-amp threshold voltage k
85 25 72 BATT 0.4 BATT 0.4 77 5.5 2.8 0.4 0.71 0.75
90 50 90 95 0 6.5 0.7 70 0.5 0.81 0.95 0.45
95 100 0.5 108 BATT BATT 113 300 5.5 0.2 3.0 0.91 1.20 1.0 1.0 1.0
mV V k V V k nA mV V V mA mA
IO=1mA, VSYS1=VSYS2=2.8V IO=1mA, VSYS1=VSYS2=2.8V IO=1mA, START=0V VSYS1=VSYS2=2.8V
OP+=1.6V RL=OPEN RL=OPEN Output short to GND by 50 Output short to VSYS by 50
dB VIN=75dBV,f=1kHz V/s CHGVcc=4.5V, RCHG=1.8k CHGVcc=4.5V, k RCHG=0.5 and 0.6V A CHGVcc=4.5V,RCHG=OPEN A CHGVcc=0.6V,RCHG=1.8k CHGVcc=4.5V, IO=200mA, V RCHG=0 V
*This product is not designed for protection against radioactive rays.
10F-1, No.55, Tung Kuang Road, Hsinchu, Taiwan, R.O.C. Tel: 886-3-575-3058 Fax: 886-3-575-3015 7
Email: service@aimtron.com.tw http://www.aimtron.com.tw 01/08/05
AT5801
Preliminary
4-Channel driver + Power Controller
Application
10F-1, No.55, Tung Kuang Road, Hsinchu, Taiwan, R.O.C. Tel: 886-3-575-3058 Fax: 886-3-575-3015 8
Email: service@aimtron.com.tw http://www.aimtron.com.tw 01/08/05
AT5801
Preliminary
4-Channel driver + Power Controller
Application explanation H-bridge driver
1.Mute function Brake function and mute function are assigned to CH1 and other channels of the four channels respectively. * When the BRAKE pin is low is normal operation (high is CH1 mute on),and enters a brake mode. * When the MUTE2 pin is low is normal operation (high is CH2 mute on). * When the MUTE34 pin is high is normal operation (low is CH3,4 mute on). * 2.VREF drop mute When the voltage impressed to VREF terminal is 1.0V (typ.) or less, impedance of driver output becomes "high". 3.Thermal shutdown If the chip temperature rises above 150 ,then the thermal shutdown (TSD) circuit is activated and the output current is cut. When the chip temperature has dropped to 120 ,then output current begins to flow. The power supply of drive output stage is HVcc terminal and that of pre-drive circuit is VSYS2 terminal. Attach by-pass capacitor (approximately 0.1F) to the leg of this IC between the power supplies.
DC/DC converter control circuit
1.Output voltage Booster circuit of voltage (VSYS1) can be configured with external component. The voltage is defined as follows.
4.Driver gain Driver input resistance is 10k of CH1, CH3,CH4 and input resistance of CH2 is 7.5k .Driver gain can obtain under-mentioned expression and set it.
10F-1, No.55, Tung Kuang Road, Hsinchu, Taiwan, R.O.C. Tel: 886-3-575-3058 Fax: 886-3-575-3015 9
Email: service@aimtron.com.tw http://www.aimtron.com.tw 01/08/05
AT5801
Preliminary
4-Channel driver + Power Controller
2.Short-circuit protection function When the output of error amplifier is "H", if the voltage of SPRT terminal has reached 1.2V(typ.) upon charging the terminal, switching of SW terminal is disabled. Time to disable switching depends on a capacitor of the SPRT terminal and it can be calculated by the under-mentioned expression: has been 8.4V(typ.), SPRT terminal is charged. Then, switching of SW terminal is terminated when the voltage of the SPRT terminal has reached 1.2V(typ.). Time to disable switching depends on a capacitor of the SPRT terminal and it can be calculated by the undermentioned expression:
VTH (sec) ISPRT (VTH = 1 .20V , ISPRT = 10 A) t = CSPRT x
3.Soft-start function The soft-start is functioned by putting a capacitor between DEAD terminal and GND. Max duty can be changed by attaching resistance to 4-pin.
VTH (sec) IHV (VTH = 1 .20V , IHV = 20 A) t = CSPRT x PWM power supply drive circuit
This circuit detects a maximum output level of drivers of four channels and performs the PWM supply of load drive power supply. This circuit uses PNP transistor, Schottky Diode and Capacitor as external component.
t = CDEAD x R(sec) ( R = 65K)
4.Power-off operation SPRT terminal is charged by setting OFF terminal to "L". Then, switching of SW terminal is terminated when the voltage of the SPRT terminal has reached 1.2V(typ.). Time to disable switching depends on a capacitor of the SPRT terminal and it can be calculated by the under-mentioned expression:
"Empty" detector unit
When the voltage impressed to BSEN terminal has been the detecting voltage or less, EMP terminal varies from "H" to "L"(open collector output). Hysteresis of 50mV(typ.) set to the detecting voltage to prevent the output chattering. The detecting voltage varies depending on SEL terminal as follows: Email: service@aimtron.com.tw http://www.aimtron.com.tw 01/08/05
VTH (sec) IOFF (VTH = 1 .20V , IOFF = 20 A) t = CSPRT x
5.Over-voltage protection operation When the voltage impressed to BSEN terminal
10F-1, No.55, Tung Kuang Road, Hsinchu, Taiwan, R.O.C. Tel: 886-3-575-3058 Fax: 886-3-575-3015 10
AT5801
Preliminary
4-Channel driver + Power Controller Charging circuit
The power supply of the charging unit is CHGVCC terminal and it is independent of any other circuits. Charging current is set by the resistance between RCHG terminal and GND. The charging current takes constant current through SEL terminal. This circuit has a private thermal shutdown
Reset circuit
Upon 90of DC/DC converter output voltage, RESET terminal varies from "L" to "H" and AMUTE terminal changes from "H" to "L". Hysteresis of 50mV(typ.) set to the reset voltage to prevent the output chattering.
circuit. When the chip temperature has been 150, the charging current is cut. When the chip temperature has dropped to 120, the charging current begins to flow.
10F-1, No.55, Tung Kuang Road, Hsinchu, Taiwan, R.O.C. Tel: 886-3-575-3058 Fax: 886-3-575-3015 11
Email: service@aimtron.com.tw http://www.aimtron.com.tw 01/08/05
AT5801
Preliminary
4-Channel driver + Power Controller
Package Outlines (units:mm): QFP-44
10F-1, No.55, Tung Kuang Road, Hsinchu, Taiwan, R.O.C. Tel: 886-3-575-3058 Fax: 886-3-575-3015 12
Email: service@aimtron.com.tw http://www.aimtron.com.tw 01/08/05

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