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as3685c austria micro systems datasheet www.austriamicrosystems.com/as3685 (ptr) 1.1 1 - 21 1 general description the as3685 is low noise high efficiency capacitive charge pump with 1:1, 1:1.5 and 1:2 operating modes in a small 3x3mm dfn10 or a tiny 2x1.5mm wl-csp (wafer level chip scale package) package. it can drive one flash led at up to 1000ma current. it supports flas h/torch and indicator mode for the flash led. additionally the as3685 limits the flash time automatically to prot ect the flash led. 2 key features ? high efficiency capactive charge pump with 1:1, 1:1.5 and 1:2 modes ? 1:2 mode can be disabled by interface ? up to 1000ma led current ? automatic charge pump mode switching (up) ? led cathode disconnect in shutdown ? overtemperature protection ? automatic flash timeout to protect the led ? adjustable between off, 100ms?1500ms ? two wire interface ? accurate control of currents and modes ? package ? dfn10 3x3mm (10 pins + exposed pad) ? wl-csp (wafer level chip scale package) 3x4 balls 0.5mm pitch (2x1.5mm) 3 applications ? flash / torch for mobile phones, digital cameras and pda 4 application diagram figure 1 ? application diagram of as3685c as3685c ultra small high efficiency 1000ma charge pump for white led flash with two wire serial interface datasheet ams ag technical content still valid
as3685c datasheet www.austriamicrosystems.com/as3685 (ptr) 1.1 2 - 21 table of contents 1 general de scripti on............................................................................................................ ............................... 1 2 key feat ures ................................................................................................................... .................................. 1 3 applicat ions ................................................................................................................... .................................... 1 4 application diagram ............................................................................................................ .............................. 1 5 characteri stics................................................................................................................ ................................... 3 5.1 absolute maxi mum rati ngs..................................................................................................................... 3 5.2 operating c onditio ns ........................................................................................................... ................... 3 5.3 electrical char acterist ics ..................................................................................................... .................... 4 6 typical operation characteri stics.............................................................................................. ........................ 6 7 detailed functiona l descrip tion ......................................................................................................................... 8 7.1 low noise ch arge pu mp ........................................................................................................................ 8 7.1.1 mode swit ching........................................................................................................................ 8 7.1.2 soft start ..................................................................................................................... ............. 9 7.2 current source (sink).......................................................................................................... .................... 9 7.2.1 as3685 txmask functi on...................................................................................................... 12 7.3 protection functions........................................................................................................... ................... 13 7.3.1 overtemperature protecti on ................................................................................................... 13 7.3.2 flash ti meout .................................................................................................................. ...... 13 7.4 layout reco mmendat ions ......................................................................................................... ............ 13 8 external co mponents ............................................................................................................ .......................... 14 8.1 capacitor and resi stor sele ction ............................................................................................... ........... 14 8.2 usage of pcb wi re induc tance................................................................................................... .......... 14 8.3 external component specific ations .............................................................................................. ........ 14 9 pinout and packagi ng........................................................................................................... ........................... 15 9.1 dfn10 3x 3mm .................................................................................................................... .................. 15 9.1.1 pin assignments dfn10 3x 3mm ........................................................................................... 15 9.1.2 pin descriptions dfn10 3x 3mm ............................................................................................ 15 9.1.3 package drawings and marking dfn1 0 3x3.......................................................................... 16 9.2 wl-csp 2x1.5mm (wafer level chip scale package ) ......................................................................... 18 9.2.1 pin assignments wl -csp 2x1. 5mm...................................................................................... 18 9.2.2 pin descriptions wl-csp 2x1. 5mm....................................................................................... 18 9.2.3 package drawings and ma rking wl-csp 2x1.5mm .............................................................. 19 10 ordering in formati on........................................................................................................... ............................. 20 ams ag technical content still valid
as3685c datasheet www.austriamicrosystems.com/as3685 (ptr) 1.1 3 - 21 5 characteristics 5.1 absolute maximum ratings stresses beyond those listed in table 1 may cause perma nent damage to the device. these are stress ratings only, and functional operation of the device at these or an y other conditions beyond t hose indicated in section 5 electrical characteristics is not implied. exposure to absolute maximum ra ting conditions for extended periods may affect device reliability. table 1 ? absolute maximum ratings symbol parameter min max unit note v batmax maximum supply voltage -0.3 7.0 v i in input pin current without causing latchup -25 +25 ma at 25oc, norm: jedec 17 t strg storage temperature range -55 125 c humidity 5 85 % non condensing v esd electrostatic discharge -1000 1000 v norm: mil 883 e method 3015 1.14 w dfn10 3x3mm, t a = 70 c 1 pt total continuous power dissipation 1.02 w wl-csp 2x1.5mm, t a = 70 c 1 16.3 mw/ c dfn10 3x3mm p derate pt derating factor 2 14.7 mw/ c wl-csp 2x1.5mm t junc junction temperature 150 c t body body temperature during soldering 260 c according to ipc/jedec j- std-020 notes: 1. depending on actual pcb layout and pcb used; for peak power dissipation during flashing see document ?as3685 thermal measurements? for 1a flash current see application notes ?an3 685_1aflash? and ?an3685_1aflash_thermal_1v0?. 2. the pt derating factor changes the total conti nuous power dissipation, if the ambient temperature is different to 70 c. therefore for e.g. 85 c calculate pt 85 c = pt ? p derate * (85 c ? 70 c) 5.2 operating conditions table 2 ? operating conditions symbol parameter min typ max unit note vbat battery supply voltage 3.0 3.6 5.5 v supply voltage range vbatfunc battery supply voltage, functionally working 2.6 v as3685 functionally working, but not all parameters fulfilled 0.4 a depending on load current and charge pump mode i bat operating current 2.0 a limited lifetime, max 20,000s t amb ambient temperature -30 25 85 c i off off mode current 1.0 4.0 a mode setting=off; vbat<=4.2v ams ag technical content still valid
as3685c datasheet www.austriamicrosystems.com/as3685 (ptr) 1.1 4 - 21 table 2 ? operating conditions symbol parameter min typ max unit note 0.85 ma 1:1 mode 6.6 ma 1:1.5 mode i operating power consumption without load 8.1 ma 1:2 mode 5.3 electrical characteristics table 3 ? charge pump characteristics symbol parameter min typ max unit note v(vcp) output voltage without load ? do not short to vss v bat * cp- mode v cp-mode is 1, 1.5 or 2 (automatically selected) v cpout output limitation 5.4 5.6 internally limited 0.28 0.53 ? 1:1 mode v bat = 3.6v, i cpout = 200ma 1.37 2.00 ? 1:1.5 mode v bat = 3.3v, i cpout = 500ma, t junction <=85c r cp charge pump effective resistance 1.95 2.44 ? 1:2 mode v bat = 3.0v, i cpout =700ma, t junction <=85c eta efficiency 75 93 % vin=3.0v-4.5v, iout=100ma (charge pump alone) v ripple output ripple voltage 100 mvpp vin=3.0-4.5v, iout=350ma, fclk operating frequency -20% 1.0 +20% mhz t up_deb_long initial mode switching debounce time 256 s mode switching up-debounce time after enabling of the charge pump or after mode switching between 1:1 to 1:1.5 t up_deb mode switching debounce time 16 s mode switching up-debounce time in normal operation table 4 ? current source (sink) characteristics symbol parameter min typ max unit note i led output current range 700 1000 ma 700ma: r iset = 14.2k ? 1000ma: r iset = 10k ? i accuracy current setting accuracy -10% 500 +10% ma measured with r iset = 19.9k ? and maximum flash current i indicator indicator current setting 1.0 ma v iset current genera tor set point voltage (pin iset) 1.3 v i iset current generator operating range 10.0 130 a i iset = v iset / r iset if the resulting bias current is higher than 200 a (typ.), the current source is disabled i flash2iset flash current to bias current ratio 7650 a/a at full flash current (700ma with r iset = 14.2k ?) v switch mode switching threshold on v(iled) between 1:1 -> 1:1.5 and 1:1.5 -> 1:2 350 400 450 mv data1<7:0>(flash led current) >= 0x80h in flash mode; i led >350ma @ r iset =14.2k ? ams ag technical content still valid
as3685c datasheet www.austriamicrosystems.com/as3685 (ptr) 1.1 5 - 21 table 4 ? current source (sink) characteristics symbol parameter min typ max unit note 150 200 250 mv all lower currents table 5 ?digital interface characteristics symbol parameter min typ max unit note v ih high level input voltage 1.5 vbat v v il low level input voltage 0.0 0.5 v i leakage input pin leakage current -10 10 a for pins scl and sda table 6 ? protection functions symbol parameter min typ max unit note t ovtemp overtemperature protection 140 c t ovtemphyst overtemperature protection hysteresis 5 c if the junction temperature exceeds t ovtemp , the current sink will be disabled and the charge pump switched back into 1:1 mode until the temperature drops below t ovtemp - t ovtemphyst t flashtimeout flash timeout time -20% 100? 1500 +20% ms adjustable by register flash timeout timer ams ag technical content still valid
as3685c datasheet www.austriamicrosystems.com/as3685 (ptr) 1.1 6 - 21 6 typical operation characteristics figure 2 ? efficiency vs. battery voltage (with lumiled pwf1) 40 50 60 70 80 90 100 2.8 3.2 3.6 4.0 4.4 4.8 5.2 v bat [v] efficiency of charge pump [%] i led =700m i led =600m i led =500m i led =400m i led =300m i led =200m i led =100m i led =50m figure 3 ? battery current vs. battery voltage (with lumiled pwf1) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 2.8 3.2 3.6 4.0 4.4 4.8 5.2 v bat [v] i bat [a] i led =700m i led =600m i led =500m i led =400m i led =300m i led =200m i led =100m i led =50m figure 4 ? led current i(iled) vs. battery voltage (with lumiled pwf1) 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 2.83.23.64.04.44.85.2 v bat [v] i led [a] i led =700m i led =600m i led =500m i led =400m i led =300m i led =200m i led =100m i led =50m figure 5 ? linearty of current sink 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.0 0.5 1.0 1.5 2.0 2.5 v iled [v] i led [a] i led =700m i led =600m i led =500m i led =400m i led =300m i led =200m i led =100m i led =50m figure 6 ?i(iled) vs. r(iset) 0 200 400 600 800 1000 1200 0k 20k 40k 60k 80k 100k 120k 140k r iset [ohm] i led [ma] maximum flash current figure 7 ? typical operating waveforms 1:1.5 mode vcp ac-coupled, 100mv/div 1s/div v bat =3.3v, i led =500ma ams ag technical content still valid
as3685c datasheet www.austriamicrosystems.com/as3685 (ptr) 1.1 7 - 21 figure 8 ? typical operating waveforms 1:2 mode vcp ac-coupled, 50mv/div 250ns/div v bat =3.3v, i led =500ma ams ag technical content still valid
as3685c datasheet www.austriamicrosystems.com/as3685 (ptr) 1.1 8 - 21 7 detailed functional description figure 9 ? internal circuit diagram of as3685c 7.1 low noise charge pump the as3685 charge pump uses two external flying capacitors to generate output voltages higher than the battery voltage. the charge pump can operate in three different modes: ? 1:1 bypass mode or off mode ? battery input and output are connected by a low-impedance switch ? battery current = output current ? 1:1.5 mode ? the output voltage is 1.5 times t he battery voltage (without load) ? battery current = 1.5 times output current ? 1:2 mode ? the output voltage is 2 times the battery voltage (without load) ? battery current = 2 times output current the flying capacitors are switched at the fixed frequency fclk. 7.1.1 mode switching the as3685 monitors the voltage at the current si nk v(iled) and if this voltage falls below v switch , for a time longer than the debounce time, the charge pump automatically switches into a higher mode. the debounce time is set to t up_deb_long at enabling of the charge pump or immediately after a 1:1 to 1:1.5 mode change. afterwards the debounce time is reduced to t up_deb . (this allows the led current to settle properly on startup or after a mode change) the charge pump enters always 1:1 mode in o ff mode or in case of overtemperature. it is possible to avoid the 1:2 mode (register programmable) to limit the battery current to 1.5 times the output (=led) current. ams ag technical content still valid
as3685c datasheet www.austriamicrosystems.com/as3685 (ptr) 1.1 9 - 21 7.1.2 soft start the soft start mechanism reduces the inrush curren t. battery current is smoothed when switching the charge pump on and also at each switching condition. this precaution reduces electromagnetic radiation significantly. 7.2 current source (sink) the as3685 operates in three different modes: ? indicator mode: a small (average) current is used to obtain an indication function with the flash led (e.g. indication for camera operation) ? torch mode: a moderate current of e. g. 150ma allows the use of the flash led as a torch or video light ? flash mode: a high current of e.g. 700ma (up to 1000ma) is set for a high brightness flash. only in this mode, the flash timeout timer limits the total flash time. the current through the led and the operat ing mode is controlled by the two digital interface connected to scl and sda. the current is controlled with a two wire bus interf ace commands similar to i2c communication (device address 82h, only commands writing to the as3685 are possibl e, no readback) as shown in following figure: figure 10 ? two wire interface waveform data from the bus is always captured on the rising edge of the scl signal; therefore the data on sda has to be stable slightly before this rising edge. the strobe command is merged with the interface commands and all other devices connected to the bus will ignore these commands. only the as3685 will also use these commands and switch on/off the flash led with the strobe pin (the strobe function can be enabled/disabled by the interface and its polarity is selectable): ams ag technical content still valid
as3685c datasheet www.austriamicrosystems.com/as3685 (ptr) 1.1 10 - 21 figure 11 ? external circuit of the as3685 using active high strobe function using the above external circuit, an active strobe function can be implemented as follows: figure 12 ? timing diagram of the as3685 using active high strobe function alternatively (if the device driving scl has only the possi bility to pulldown the scl line, but does not actively control high/low/tristate of the scl line) use following circuit: figure 13 ? external circuit of the as3685 using active low strobe function ams ag technical content still valid
as3685c datasheet www.austriamicrosystems.com/as3685 (ptr) 1.1 11 - 21 the control waveform is shown in the next figure: figure 14 ? timing diagram of the as3685 using active low strobe function if the strobe function is not used at all, the interface can be addressed like a normal slave (only writing access). the strobe function does not violate t he two wire interface specification. data1 setups the flash current from 0ma to 1000ma, data2 can be used to set the preview current and data3 will set the operating mode, can lock 1:2 charge pump mo de and set or disable the flash mode timeout time. table 7 ? current and mode setting for the as3685 register purpose comments data1<7:0> current setting flash flash mode current setting, flash timeout timer used if the mode setting uses this current 0ma to 1000ma (for r iset =10k ?) 0ma to 700ma (for r iset =14.2k ?) data2<6:0> current setting torch (preview) torch (=preview or assist) mode current setting, no timeout timer used for this current setting 0ma to 500ma (for r iset =10k ?) 0ma to 350ma (for r iset =14.2k ?) data2<7> not used ? leave at 0 not used data3<2:0> mode setting 000 ? off (power down; charge pump in 1:1 mode) 001 ? indicator mode data2<7> = 0: iled = 0.5ma data2<7> = 1: iled = 1.0ma 010 ? torch (=preview) mode (data2 sets current) 011 ? flash mode (data1 sets current) 100 ? preview / flash mode, strobe active high strobe=h: flash mode (data1 sets current) strobe=l: preview mode (data2 sets current) 101 ? preview / flash mode, strobe active low strobe=l: flash mode (data1 sets current) strobe=h: preview mode (data2 sets current) 110 ? force charge pump into 1:1.5 mode; no current is flowing through the current sink (as3685 can be used as voltage generator for e.g. backlight leds with addit ional external current source(s)) 111 ? force charge pump into 1:2 mode; no current is flowing through the current sink (as3685 can be used as voltage generator for e.g. backlight leds with addit ional external current source(s)) ams ag technical content still valid
as3685c datasheet www.austriamicrosystems.com/as3685 (ptr) 1.1 12 - 21 table 7 ? current and mode setting for the as3685 register purpose comments data3<3> avoid 1:2 mode 0 ? charge pump can use 1:2 mode 1 ? charge pump does not use 1:2 mode; ignored if data3<2:0> is set to 111 (forced 1:2 mode) data3<7:4> flash timeout timer 0000 ? disable timeout timer for flash mode 0001 ? 100ms timeout timer for flash mode 0010 ? 200ms timeout timer for flash mode ? 1111 ? 1500ms timeout timer for flash mode 7.2.1 as3685 txmask function if the battery has to supply two high currents at the same time (e.g. the as3685 flash and a rf-power amplifier) it is possible, that the total current causes a high volt age drop on the battery resulting in a shutdown of the complete system. in order to avoid this shutdown, the as3685 (as3685a or as3685b) can reduce its current with the signal ?txmask? using the following circuit: figure 15 ? txmask function of the as3685 the txmask signal is connected to e.g. the (rf-) power amplifier enable pin (active high if the pa is enabled). this reduces the flash current if the power amplifier is enabled and avoids the une xpected shutdown of the system. note : the internal flas h timeout timer (t flashtimeout ) to limit the total flash duration, is not affected by the txmask function (see also section ?flash timeout?). the i iset current (current into the pin iset) for txmask = 0 can be calculated with: for txmask = 1 the current i iset is reduced to: v(txmask) is the actual voltage for the high level (?1?) for the signal txmask the maximum flash current i ledmax for txmask=0 or 1 can be calculated according to the following formula using the above obtained i iset values: choose the values for r iset and r txmask according to your application requirements. i iset , txmask 0 v iset r iset v iset r txmask 1.3 v r iset 1.3 v r txmask i iset , txmask 1 v iset r iset v iset v txmas k r txmask 1.3 v r iset 1.3 v v txmas k r txmask i ledmax i flash2bias i ise t 7650 i ise t ams ag technical content still valid
as3685c datasheet www.austriamicrosystems.com/as3685 (ptr) 1.1 13 - 21 7.3 protection functions 7.3.1 overtemperature protection if the as3685 junction temperature exceeds t ovtemp , the current sink will be disabled and the charge pump forced into 1:1 mode. if the junction temperature drops below t ovtemp ? t ovtemphyst, the device enables the current sink again and the charge pump resumes normal operation. 7.3.1.1 led shortcircuit protection if the led is shorted (vcp to iled), then depending on the set current and the resulting high power dissipation inside the as3685, the overtemperature protection will tri gger. this protects the as3685 and the system against damage. if the as3685 is in off-mode, then shorting of the diode will have no influence on the system. note: do not short vcp to vss if the supply is not curr ent limited (e.g. by an internal protection inside the battery), as there is an internal diode between vbat (anode) and vcp (cathode). 7.3.2 flash timeout the flash duration of a single flash is limited automatically to t flashtimeout (applies only for ?flash? mode(s)). this protects the flash led against thermal damage. 7.4 layout recommendations to improve the heat dissipation, use a massive ground plane. figure 16 ? as3685 dfn10 3x3mm layout recommendation figure 17 ? as3685 wl-csp 2x1.5mm layout recommendation ams ag technical content still valid
as3685c datasheet www.austriamicrosystems.com/as3685 (ptr) 1.1 14 - 21 8 external components 8.1 capacitor and resistor selection use low-esr ceramic capacitors with x7r or x5r dielectric. these capacitors allow good filtering and have a wide temperature range. the connections of all external capacitors should be kept as short as possible. all resistors should have a tolerance of 1%. 8.2 usage of pcb wire inductance the inductance between the battery and pin v bat can be used as a filter to reduce disturbance on the battery. instead of using one capacitor (c bat ) it is recommended to split c bat into c bat1 a nd c bat2 with the capacitance of c bat1 = c bat2 = c bat it is recommended to apply a minimum of 20nh (maximum 200nh) with low impedance. this inductance can be realized on the pcb without any discrete coil. assuming that a 1mm signal line corresponds to approximately 1nh (valid if the length (l) is significantly bigger than the width (w) of the line (l/w <10)), a line length of 20mm < l < 200mm is recommended. the shape of the line is not important. figure 18 ? pcb wire inductance example1 figure 19 ? pcb wire inductance example2 8.3 external component specifications table 8 ? external components list part min value typ max tol (min) rating (max) notes package (min) c bat 1 2.2 f +/-20% 6.3v ceramic, x5r e.g. murata grm21br71a225ka01l 0603 c fly1 , c fly2 1.0 f +/-20% 6.3v ceramic, x5r e.g. murata grm188r60j105k 0603 (0402, 0405) c vcp 2.2 f +/-20% 6.3v ceramic, x5r e.g. murata grm21br71a225ka01l 0603 r iset 10k 130k +/-1% current set resistor 0201 r txmask see section ?txmask function? +/ -1% txmask set resistor 0201 d led flash led notes: 1. see section ?usage of pcb wire inductance? battery connector vss vss as3685 pin vbat l c bat1 c bat2 l total = l battery connector vss vss as3685 pin vbat l1 c bat1 c bat2 l total = l1 + 10*l2 l2 ams ag technical content still valid
as3685c datasheet www.austriamicrosystems.com/as3685 (ptr) 1.1 15 - 21 9 pinout and packaging 9.1 dfn10 3x3mm 9.1.1 pin assignments dfn10 3x3mm figure 20 ?pin assignments dfn10 3x3mm 9.1.2 pin descriptions dfn10 3x3mm table 9 ? pin type descriptions dfn10 3x3mm pin type description ai/o analog pin di digital input s supply pin table 10 ? pin descriptions dfn10 3x3mm pin number pin name type description 1 c2- ai/o flying capacitor 2 connection ? connect 1 f ceramic capacitor c fly2 between c2- and c2+ 2 vbat s battery supply voltage 3 c1+ ai/o flying capacitor 1 connection ? connect 1 f ceramic capacitor c fly1 between c1- and c1+ 4 vcp ai/o charge pump output voltage ? connect flash led anode to this pin and add c vcp capacitor with 2.2 f to vss 5 scl di digital control signal two wire interface clock input 6 iset ai/o current generator input pin ? connect current set resistor r iset between this pin and vss (and optional r txmask ) 7 sda di/o digital input/output control two wire interface data signal 8 c2+ ai/o flying capacitor 2 connection ? connect 1 f ceramic capacitor c fly2 between c2- and c2+ 9 iled ai/o current source input pin ? connect flash led cathode to this pin 10 c1- ai/o flying capacitor 1 connection ? connect 1 f ceramic capacitor c fly1 between c1- and c1+ exposed pad vss s ground connection ? a proper thermal connection with several vias to the ground plane is recommended ams ag technical content still valid
as3685c datasheet www.austriamicrosystems.com/as3685 (ptr) 1.1 16 - 21 9.1.3 package drawings and marking dfn10 3x3 figure 21 ? dfn10 ? 3x3mm pacakge drawing marking: line 1: ayww a = pb-free identifier y = year ww = week line 2: xzz x = plant identifier zz = letters of free choice line 3: as8c for as3685c bottom view (rotated) top view ams ag technical content still valid
as3685c datasheet www.austriamicrosystems.com/as3685 (ptr) 1.1 17 - 21 figure 22 ? dfn10 ? 3x3mm detail dimensions ams ag technical content still valid
as3685c datasheet www.austriamicrosystems.com/as3685 (ptr) 1.1 18 - 21 9.2 wl-csp 2x1.5mm (wafer level chip scale package) 9.2.1 pin assignments wl-csp 2x1.5mm figure 23 ? wl-csp 2x1.5mm pin assignments 9.2.2 pin descriptions wl-csp 2x1.5mm table 11 ? pin type descriptions wl-csp 2x1.5mm pin type description ai/o analog pin di digital input s supply pin table 12 ? pin descriptions wl-csp 2x1.5mm pin number pin name type description a1 scl di digital control signal two wire interface clock input a2 vss s ground connection ? a proper thermal connection to the ground plane is recommended a3 iset ai/o current generator input pin ? connect current set resistor r iset between this pin and vss (and optional r txmask ) b1 c1+ ai/o flying capacitor 1 connection ? connect 1 f ceramic capacitor c fly1 between c1- and c1+ b2 vcp ai/o charge pump output voltage ? connect flash led anode to this pin and add c vcp capacitor with 2.2 f to vss b3 sda di/o digital input/output control two wire interface data signal c1 vbat s battery supply voltage c2 c2+ ai/o flying capacitor 2 connection ? connect 1 f ceramic capacitor c fly2 between c2- and c2+ c3 iled ai/o current source input pin ? connect flash led cathode to this pin d1 c2- ai/o flying capacitor 2 connection ? connect 1 f ceramic capacitor c fly2 between c2- and c2+ d2 c1- ai/o flying capacitor 1 connection ? connect 1 f ceramic capacitor c fly1 between c1- and c1+ d3 vss s ground connection ? a proper thermal connection to the ground plane is recommended ams ag technical content still valid
as3685c datasheet www.austriamicrosystems.com/as3685 (ptr) 1.1 19 - 21 9.2.3 package drawings and marking wl-csp 2x1.5mm figure 24 ? wl-csp 2x1.5mm package drawing marking: line 1: austriamicrosystems logo line 2: as3685c line 3: aywwizz a = pb-free identifier y = year ww = week i = plant identifier zz = letters of free choice figure 25 ? wl-csp 2x1.5mm detail dimensions ams ag technical content still valid
as3685c datasheet www.austriamicrosystems.com/as3685 (ptr) 1.1 20 - 21 10 ordering information table 13 ? delivery information part number marking package type delivery form description as3685c-zwlt as3685c wl-csp 2x1.5mm tape&reel as3685c interface wafer level chip scale package, size 2x1.5mm, 4x3 balls, 0.5mm pitch, rohs compliant / pb-free AS3685C-ZDFT 1 as8c dfn 10 3x3mm tape&reel as3685c interface dfn package, 3x3mm, 10 pins, 0.4mm pitch, rohs compliant / pb-free description: as3685c-zppt as3685 c ? as3685c interface version two wire interface signal with strobe - z ? temperature range: z = -30c ? 85c pp ? package: wl = wafer level ch ip scale package df = dfn10 t ? delivery form: t = tape&reel 1 contact austriamicrosys tems for availability. ams ag technical content still valid
as3685c datasheet www.austriamicrosystems.com/as3685 (ptr) 1.1 21 - 21 copyright copyright ? 1997-2010, austriamicrosystems ag, tobelbaderstrasse 30, 8141 unterpremstaetten, austria- europe. trademarks registered ?. all rights reserved. the material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. all products and companies mentioned are trademarks or registered trademarks of their respective companies. diclaimer devices sold by austriamicrosystems ag are covered by the warranty and patent indemnification provisions appearing in its term of sale. austriamicrosystems ag makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. austriamicrosystems ag reserves the ri ght to change specifications and prices at any time and without notice. therefore, prior to designing this pr oduct into a system, it is necessary to check with austriamicrosystems ag for current information. this product is intended for use in normal commercial applications. applications requiring extended temperatur e range, unusual environmental requirements, or high reliability applications, such as military, medical life-supp ort or life-sustaining equipment are specifically not recommended without additional processing by austriamicrosystems ag for each application. for shipments of less than 100 parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location. the information furnished here by austriamicrosystems ag is believed to be correct and accurate. however, austriamicrosystems ag shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. no obligati on or liability to recipient or any third party shall arise or flow out of austriamicrosystems ag rendering of technical or other services contact information headquarters austriamicrosystems ag tobelbaderstrasse 30 schloss premst?tten a-8141 austria tel: +43 (0) 3136 500 0 fax: +43 (0) 3136 525 01 for sales offices, distributors and representatives, please visit: http://www.austriamicrosystems.com/contact ams ag technical content still valid

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