AS3635 [AMSCO]

Xenon Flash Driver with 5V IGBT Control; 氙气闪光灯驱动器与5V IGBT控制
AS3635
型号: AS3635
厂家: AMS(艾迈斯)    AMS(艾迈斯)
描述:

Xenon Flash Driver with 5V IGBT Control
氙气闪光灯驱动器与5V IGBT控制

驱动器 闪光灯 双极性晶体管
文件: 总21页 (文件大小:1538K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
austriamicrosystems AG  
is now  
ams AG  
The technical content of this austriamicrosystems datasheet is still valid.  
Contact information:  
Headquarters:  
ams AG  
Tobelbaderstrasse 30  
8141 Unterpremstaetten, Austria  
Tel: +43 (0) 3136 500 0  
e-Mail: ams_sales@ams.com  
Please visit our website at www.ams.com  
Datasheet  
AS3635  
Xenon Flash Driver with 5V IGBT Control  
1 General Description  
2 Key Features  
Build in 5V charge-pump for IGBT gate drive  
The AS3635 is a highly integrated photoflash charger  
with build in IGBT driver.  
Photoflash voltage accuracy programmable to ±3%  
(in circuit One Time Programmable - OTP)  
A build in 5V charge-pump guaranties constant IGBT  
drive at any battery voltage. The build in timer turns off  
the charge-pump 20 seconds after charging.  
Trip voltage accuracy ±1.5%  
Small Size 1.5mm x 1.5mm x 0.6mm  
PCB: No microvias need  
In circuit fuse trimming allows to set the voltage on the  
photoflash capacitor to ±3% accuracy.  
Average input current < 320mA  
Few external components  
- No Schottky-Diode needed  
- No output voltage divideneedd  
The AS3635 is available in a space-saving WL-CSP  
package measuring only 1.5mm x 1.5mm and operates  
over the -30ºC to +85ºC temperature range.  
Relie Flash on/off for IGBT timing.  
hare time < 4sec @ Vba2.7V, CFLASH =22µF  
Charge comple indicator  
Undervoltage lockut  
Available ia tinWL-CSP Package  
3x3 ba0.5m pitch, 1.5x1.5mm package size  
Warning: Lethal voltages are present on applications  
using AS3635! Do not operate wihoutrain-  
ing to handle high voltages.  
3 Applications  
XenoFlash driver for mobile phones, PDA and DSC  
Figure 1. Typical Operating Circuit  
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AS3635  
www.austriamicrosystems.com/AS3635  
(ptr)  
1.4-8  
1 - 20  
AS3635  
Datasheet - Pinout  
4 Pinout  
Pin Assignment  
Figure 2. Pin Assignments (Top Through View)  
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AS3635  
Pin Description  
Table 1. Pin Description for AS363
Pin Number  
Pin Name  
SW  
Description  
Xenon DCDC converter switching node  
A1  
A2  
A3  
B1  
B2  
B3  
C1  
C2  
C3  
Positive suply oltage input  
VBAT  
5V chrge pump output  
V5V  
Digl input pin, active high - enables charging of photoflash capacitor  
Poer ground - connect to ground (GND)  
CHARGE  
PGND  
GBT gate control - internally level shifted to 5V (from pin V5V)  
Digital input pin, active high - Enables flash (level shifted to IGBT_GATE)  
Signal ground - connect to ground (GND)  
IGBT_GATE  
FLSH  
GND  
Digital open drain output, active low - indicates end of charging  
DONE  
www.austriamicrosystems.com/AS3635  
1.4-8  
2 - 20  
AS3635  
Datasheet - Absolute Maximum Ratings  
5 Absolute Maximum Ratings  
Stresses beyond those listed in Table 2 may cause permanent damage to the device. These are stress ratings only,  
and functional operation of the device at these or any other conditions beyond those indicated in Table 3, “Electrical  
Characteristics,” on page 4 is not implied. Exposure to absolute maximum rating conditions for extended periods may  
affect device reliability.  
Table 2. Absolute Maximum Ratings  
Parameter  
Min  
Max  
Units  
Comments  
VBAT, V5V to GND  
-0.3  
+7.0  
V
VBAT +  
0.3  
CHARGE, DONE, FLASH to GND  
-0.3  
V
maximum 7.0V  
V5V +  
0.3  
IGBT_GATE to GND  
SW to PGND  
-0.3  
-0.3  
V
V
+55.0  
Connect PGND to ND rectly below  
the pad (short cnnection  
recomendd)  
PGND to GND  
0.0  
0.0  
V
+10
+IIN  
Input Pin Current without causing latchup  
-100  
m
Norm: EA/JESD78  
Continuous Power Dissipation (TA = +70ºC)  
Continuous power dissipation  
1
6  
W
PT  
Electrostatic Discharge  
Air Discharge to module;  
IEC 61000 -4 -2 test bench  
±15000  
±8000  
V
V
ESD pins VBAT, CHARGE, DONE, FLASH2  
Contact Test to module;  
IEC 61000 -4 -2 test bench  
ESD HBM pins SW, IGBT_GATE, PGND, 5V  
±200  
±50
00  
V
V
V
Norm: MIL 883 E Method 3015  
Norm: JEDEC JESD 22-C101C  
ESD CDM  
ESD MM  
Norm: JEDEC JESD 22-A115-A level A  
Temperature Ranges and Storage Conditions  
Storage Temperature Range  
Humidity  
-5  
5
+125  
85  
ºC  
%
Non condensing  
Body Temperature during Solderng  
+260  
ºC  
according to IPC/JEDEC J-STD-020  
Represents a max. floor life time of  
unlimited  
Moisture Sensitivity Level MSL)  
MSL 1  
1. Depending on actual PCB layot and PCB used  
2. Assembled on PCB bord (requires capacitor CVBAT); special PCB layout (spark gaps) and external resistors  
required; system tet for ompleted module (fully capsuled), no permanent interruption of operation  
www.austriamicrosystems.com/AS3635  
1.4-8  
3 - 20  
AS3635  
Datasheet - Electrical Characteristics  
6 Electrical Characteristics  
VVBAT = +2.51V to +5.5V, TAMB = -30ºC to +85ºC, unless otherwise specified. Typical values are at VVBAT = +3.6V,  
TAMB = +25ºC, unless otherwise specified.  
Table 3. Electrical Characteristics  
Symbol  
Parameter  
Condition  
Min  
Typ  
Max  
Unit  
General Operating Conditions  
2.511  
-30  
VVBAT  
TAMB  
Supply Voltage  
3.6  
25  
5.5  
85  
V
Operating  
Temperature  
ºC  
CHARGE = 0, charge pump OFF, FLASH = 0  
TAMB<50ºC; VVBAT<3.7V  
ISHUTDOWN  
VUVLO  
Shutdown Current  
0.5  
1.0  
2.5  
µA  
V
Undervoltage Lockout  
Measured on pin VBAT  
2.3  
VFLASH Capacitor Charger  
V(SW) - V(VBAT) in circuit adjustable with  
OTP. TAMB = 0°C to 50°C; only if VTRIP is  
trimmed by austriamicrosystems  
Comparator trip  
VTRIP  
31.9  
29.6  
34 32.9  
V
voltage  
5 bit programming 32.4-11.2/+10.5%;  
measured on pSW  
Programming range of  
VTRIPRANGE  
VSW  
35.8  
50  
V
V
VTRIP  
Allows in-circuit trig of the final charged  
voltage VFLASH apacitor CFLASH  
Maximum voltage on  
pin SW  
ISW  
Switching current limit  
Switch on resistance  
0.75  
128  
0.9  
0.4  
1.05  
A
RSW  
Internal tansistor betweeSW nd PGND  
Ω
ed of harge comparatotrigr time - see  
Internal Circut on page 8  
tEOC_DET  
138  
148  
ns  
V
Charge Pump Parameters  
5.25 AT > 2.7V  
2.7V > VVBAT > 2.51V  
4.75  
4.3  
5.0  
5.25  
5.25  
5V Charge pump  
output voltage  
VV5V  
CHARGE= 0->1->0 (20 seconds timer  
Charge Pump  
Operating Current  
running2), charge pump ON  
ICHRG_PUMP  
fCLK  
163  
2.0  
µA  
incldes 8µA for internal biasing and oscillator  
Operating frequency  
MHz  
IGBT Control - See IGBT Driveon page 13  
IGBT control volge  
IBGTRISE  
0.171 0.214 0.256  
0.42 0.525 0.63  
µs  
µs  
Pin IGBT_GATE, rise/falltime 10% - 90%,  
rise tm
V5V=5V, TAMB=25ºC, VIN=3.7V, AS3635E,  
load: 6.5nF (capacitor)  
IGBT contrl voltage  
fl time  
IBGTFALL  
RIGBT_ON  
AS3635B  
TAMB=-30ºC to 85ºC  
30  
5
50  
15  
15  
60  
46  
60  
20  
20  
70  
53  
Ω
IGBswitching on  
resistance  
AS3635E  
Ω
AS3635B  
10  
52  
40  
mA  
mA  
mA  
VIGBT_GATE below 2.3V;  
IGBT_K  
IGBT Sink Current  
TAMB=-30ºC to 85ºC  
AS3635E  
IIGBBOOST IGBT Boost Current  
VIGBT_GATE above 2.3V; TAMB=-30ºC to 85ºC  
Digital Interface  
www.austriamicrosystems.com/AS3635  
1.4-8  
4 - 20  
AS3635  
Datasheet - Electrical Characteristics  
Table 3. Electrical Characteristics (Continued)  
Symbol  
Parameter  
Condition  
Min  
Typ  
Max  
Unit  
High Level Input  
Voltage  
VIH  
1.26  
V
Pins CHARGE, FLASH;  
pin DONE in trimmode  
Low Level Input  
Voltage  
VIL  
0.0  
0.54  
V
Low Level Output  
Voltage  
VOL  
Pin DONE, ILOAD=4mA  
Pin DONE  
0.2  
+1  
V
ILEAK  
Leakage current  
-1  
µA  
Pulldown resistance to  
GND3  
RPD  
Pins CHARGE, FLASH  
52  
kΩ  
Recommended Transformer parameters - see Table 4, “Recommended Transformers,” on page 15  
LPRIMARY  
Primary Inductance  
6
H  
µH  
Primary Leakage  
Inductance  
LLEAK  
.4  
for VFLASH=320V (final charged  
voltage on CFLASH)  
N
Turns Ratio  
10.
VISOLATION  
ISATURATION  
Isolation Voltage  
00  
V
A
Primary Saturation  
Current  
0.84  
Primary Winding  
Resistance  
RPRIMARY  
0.4  
60  
Ω
Ω
Secondary Winding  
Resistance  
RSECUNDAR  
Y
1. Minimum VVBAT is set to 2.51V to allow a littmargin to maximum VLO undervoltage lockout of 2.5V.  
2. Setting CHARGE=1 resets the timeut timer. Additionally ttimout timer is automatically stopped at power  
on reset and once it has expired.  
3. Measured with VBAT=3.7V, CHARGE or FLASH = 1.
www.austriamicrosystems.com/AS3635  
1.4-8  
5 - 20  
AS3635  
Datasheet - Typical Operating Characteristics  
7 Typical Operating Characteristics  
VBAT = 3.6V, TA = +25ºC (unless otherwise specified). CFLASH=22µF, TCHARGE Transformer = TTRN-3822,  
QIGBT=RJP4002ANS, ISW=750mA.  
Figure 3. Charging Waveform  
Figure 4. Charging Time vs. VBAT  
4.0  
3.8  
3.6  
3.4  
3.2  
3.0  
2.8  
2.6  
2.4  
2.2  
20  
VFLASH drop due to  
load of measurement  
2.4  
2.8  
3.
VBAT (V)  
3.6  
4.0  
500ms/Div  
Figure 5. Charging Waveform VBAT=2.51V  
ure 6. Charging Waeform VBAT=4.2V  
500ms/Div  
500ms/Div  
Figure 7. Efficiency vs. VFLASH  
Figure 8. Efficiency vs. Charging Time  
80  
80  
70  
60  
70  
60  
50  
40  
30  
20  
50  
ote: Efficiency is mostly defined  
y eternal components used  
and transformer TTRN-3822 is  
optimized for size  
40  
3
20  
10  
0
VBAT=3.6V  
VBAT=2.7V  
VBAT=4.2V  
VBAT=3.6V  
VBAT=2.7V  
VBAT=4.2V  
10  
0
0
50  
100 150  
Voltage on CFLASH (V)  
200 250 300 350  
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0  
Charging Time (s)  
www.austriamicrosystems.com/AS3635  
1.4-8  
6 - 20  
AS3635  
Datasheet - Typical Operating Characteristics  
Figure 9. End of charge Voltage vs. VBAT  
Figure 10. IGBT_GATE driving waveform  
328  
327  
326  
IGBT_GATE  
FLASH  
Tamb = -25C  
Tamb = +85C  
Tamb = +25C  
325  
2.5 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1  
VBAT (V)  
1µs/Div  
Figure 11. SW switching waveform  
Figur12. Sswitching waveform  
Transformer:  
TTRN-3822  
Transformer:  
TTRN-3825  
50ns/Div  
50ns/Div  
Figure 13. V5V vs. VBAT (V5V Con)  
Figure 14. Battery current vs. VBAT (V5V CP on)  
5.2  
300  
250  
200  
150  
100  
5.1  
5.0  
4.9  
50  
IV5V= 10uA  
IV5V= 10uA  
IV5V = no load  
IV5V= no load  
4.8  
0
2.5  
3.0  
3.5  
Input Voltage (V)  
4.0  
4.5  
2.5  
3.0  
3.5  
4.0 4.5  
Input Voltage (V)  
www.austriamicrosystems.com/AS3635  
1.4-8  
7 - 20  
AS3635  
Datasheet - Detailed Description  
8 Detailed Description  
The AS3635 is a photoflash capacitor charger and an integrated IGBT driver for a Xenon flash. The capacitor charger  
charges VFLASH to the final charging voltage (e.g. 320V) and the IGBT driver starts the actual Xenon flash.  
Additionally a charge pump is included to generate a stable 5V supply for accurate control of the IGBT on/off timings  
independent of the battery supply.  
The final charged voltage (VFLASH) can be in-field trimmed to e.g. 320V with the integrated OTP (one time programma-  
ble) memory (see section Trimming Procedure on page 12). VFLASH can be exactly trimmed to the maximum allowed  
output voltage resulting in an improved use of the available energy in the photoflash capacitor.  
Note: The AS3635 uses a WL-CSP (wafer level chip scale package) to optimize the PCB area required and minimize  
the module size. Therefore the actual DIE is visible (and it is not molded in plastic as for other packages lke  
QFN or DFN) and the AS3635 is sensitive to external light. It has to be protected from direct light from the  
Xenon tube.  
Internal Circuit  
Figure 15. Internal circuit  
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AS3635  
AS3635 Operation  
The AS3635 allows charging and refresh cycles under complete software control. Two typical configurations are  
shown in Figure 16 and Figure 17:  
Figure 16 shows a configuration without any refresh between the pre-flash and the actual flash. Typically this is used  
for applications where no noise at all should be generated on the battery when the camera is performing e.g. white  
color balancing (between pre-flash and flash cycle).  
www.austriamicrosystems.com/AS3635  
1.4-8  
8 - 20  
AS3635  
Datasheet - Detailed Description  
Figure 16. AS3635 Charging Cycle without recharging between Pre-Flash and Flash  
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www.austriamicrosystems.com/AS3635  
1.4-8  
9 - 20  
AS3635  
Datasheet - Detailed Description  
Figure 17 shows a configuration with continuous refresh of the voltage on the photoflash capacitor (VFLASH). Typically  
this is used in application where the maximum flash energy should be used.  
Figure 17. AS3635 Charging Cycle with continuous recharging  
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www.austriamicrosystems.com/AS3635  
1.4-8  
10 - 20  
AS3635  
Datasheet - Detailed Description  
A typical charging cycle and its voltages and current on the different pins and signals are shown in Figure 18:  
Figure 18. AS3635 Charging Cycle Details  
%
,
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The input CHARGE is set to high and charging begins (
During a single cycle, the internal NMOS transistor connects the pin SW to PGND (2). Therefore the current ISW rises  
(3) until it reaches ISW current limit (4). Then the energy s transferred to the secondary side of the transformer and the  
voltage VCFLASH on the flash capacitor CFLSH rises (5).  
The output voltage VCFLASH gradually increaseand once it hits the end of charge detection threshold (6) (detected on  
VSW during the off time of the NMOS tranr between SW and PGND) 8 times (7)1, DONE is pulled low (8). When  
CHARGE is set to low afterwards (9), DOE returns to high (10) finishing a full charging cycle.  
Note: For simplicity the numer oactual charging cycles (NMOS SW on/off) are reduced in Figure 18.  
1. The 8 cycles required for actual detection of the end of charge conditions are not shown in Figure 18.  
www.austriamicrosystems.com/AS3635  
1.4-8  
11 - 20  
AS3635  
Datasheet - Detailed Description  
Trimming Procedure  
The final charging voltage on VFLASH can be trimmed in-circuit to cancel inaccuracies of VFLASH due to the transformer  
and diode. The trimming procedure is performed as follows:  
Figure 19. AS3635 trimming circuit2  
.!  
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AS3635  
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1. The production test equipmnt tarts a charging cycle CHARGE=1) and waits until DONE=0  
2. The voltage on VFLASH is meed and a correcode is calculated  
3. The trimmode control is unlocked using a speciuence  
4. The one time programmable memory (OT) is programmed with the above calculated code  
5. The trimmode control can be disabled by fuing the OTP bit trimm_lock  
See austriamicrosystems application note AN335_In-Production_Trimming’ for a detailed description of the trimming  
setup and the trimming procedure.  
2. The internal voltages (e.g. +3.4V/-2.8V/32.4V) are internally scaled to fit in the supply voltage range  
www.austriamicrosystems.com/AS3635  
1.4-8  
12 - 20  
AS3635  
Datasheet - Detailed Description  
IGBT Driver  
The internal circuit of the IGBT driver is shown in Figure 20:  
Figure 20. IGBT Driver circuit  
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The IGBT driver is enable once the chpump is switched on and the voltage on pin V5V has reached 4V (to guar-  
antee at least 4V driving signal for the BT).  
The IGBT driver includes all required resistors and pulldowns to operate the IGBT without any external circuitry3. Do  
not add any external pulldown resistor on pin IGBTGAE.  
3. Exception: If the Sanyo IGBT TIG058E8 is used, add a series resistor of 50Ω for the gate drive. For Rene-  
sas RJP4006AGE add a series resistor of 68Ω.  
www.austriamicrosystems.com/AS3635  
1.4-8  
13 - 20  
AS3635  
Datasheet - Detailed Description  
ESD Protection Diodes  
The internal ESD diodes are shown in Figure 21 - do not operate ESD diodes in forward direction4:  
Figure 21. ESD Diodes  
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ꢑ$ꢔ  
4. Exception: The diode between SW and PGND is designed to be operated in forward direction for very  
short pulses during charging.  
www.austriamicrosystems.com/AS3635  
1.4-8  
14 - 20  
AS3635  
Datasheet - Application Information  
9 Application Information  
External Components  
Transformers TCHARGE and TTRIG  
Following transformers are recommend for the AS3635 (due to the OTP programming features see section Trimming  
Procedure on page 12, the output voltage VFLASH can be programmed):  
Table 4. Recommended Transformers  
Component  
Part Number  
N
L
Size (mm)  
Manufacturer  
Mitsumi Electric  
www.mitsumi.co.jp  
C3-T2.5R  
10.2  
6.7µH  
3.4x3.4x2.5  
TTRN-3825H  
TTRN-3822H  
TTRN-5820H  
TTRN-0520H  
LDT4520T-01  
10.2  
10.2  
10.2  
10.41  
10.2  
7µH  
7µH  
3.8x3.8x2.5  
3.8x3.8x2.2  
5.8x5.8x2.0  
5.0x5.0x2.0  
4.7x4.5x2.0  
Toyo Coil  
wwwokycoil.co.jp  
TCHARGE  
8.87µH  
8.35µH  
10µH  
TDK  
www.tdk.com  
3.2x2.5x1.55  
(H is max)  
ATB322515  
BO-02  
10.2  
7µH  
Tokyo Coil  
www.tokyo-coil.co.jp  
7.3x2.5(3.5)2.2  
TTRIG  
Always check if the voltage on the pin SW does nvr eceed the AS36maxmum VSW (see Table 3 on page 4)  
specification during charging.  
IGBT  
As the AS3635 has an internal charge ump ncluded, 2.5V, 2V an4V IGBT can be used without limit on the supply  
VVBAT. The IGBT is used for two purps:  
1. Powering of the Xenon tube and generating togwith the oscillation circuit consisting of TTRIG, CTRIG,  
RTRIG a sufficiently high trigger pulse to ignte the Xenon tube (about 3.5kV) - this is accomplished by a fast ris-  
ing edge of the gate of the IGBT  
2. Switching off the current through thXenon tube at the end of the flash pulse to accurately control the light  
emitted by the flash. To protect the IBT the switching off falling edge voltage should be less than 400V/µs  
(measured on the emitter of thIGT)  
Both requirements are achieved with the rnal driving circuit of the AS3635. Internal OTP trimming allows to adopt  
to different trigger coils and IGBT
Table 5. Recommended IGBT
Component  
PaNumber  
RJP4002ANS  
RJP4003ANS  
min. Drive Voltage  
Size  
Manufacturer  
2.5V  
4.0V  
VSON-8  
3 x 4.8mm  
Renesas  
www.renesas.com  
2.85x3.05x1.1  
mm (H is max.)  
RJP4006AGE1  
GT8G133  
2.7V  
4.0V  
4.0V  
T  
Toshiba  
www.semicon.toshiba.co.jp  
TSSOP-8  
3.3 x 6.4mm  
Sanyo  
www.sanyo.com  
ECH8  
2.8 x 2.9mm  
TIG058E82  
1. Add a series resistor of 68Ω in the gate drive.  
2. Add a series resistor of 47Ω in the gate drive.  
www.austriamicrosystems.com/AS3635  
1.4-8  
15 - 20  
AS3635  
Datasheet - Application Information  
Photoflash Capacitor CFLASH  
The photoflash capacitor stores the energy for the flash. Its capacitance define the maximum available energy. Using  
higher value capacitors as shown in Table 6 is possible, but will increase the charging time.  
It is recommended to use low ESR capacitors to avoid loosing power during flash (it is also possible to connect two  
capacitors in parallel to reduce ESR):  
Table 6. Recommended Photoflash Capacitors  
Voltage  
rating  
Component  
Part Number  
Capacitor  
Size  
Manufacturer  
Cylinder  
2 x l=24mm,  
d=7mm  
Rubycon  
www.rubycon.co.jp  
2x13.5µF1  
330FW13A6.3X20  
330V  
CFLASH  
1. Different capacitor values are possible to be used together with the AS3635. Lower capacitor value will reduc
charging time, lower ESR capacitor will improve light output energy and reduce losses in the capacitor during  
the flash pulse.  
Photoflash Charger rectification diode DCHARGE  
The rectification diode should have very low parasitic capacitanc5 anas to withstand the oprating current and  
reverse voltages.  
Table 7. Recommended Rectification Diodes  
Parasitic ltage  
Component  
Part Number  
FVO2R80  
GSD2004S  
BAS1  
Sie  
Manufacturer  
Capacitor  
ting  
Origin  
www.origin.co.jp  
p
800V  
25x25mm  
Vishay  
www.vishay.com  
SOT-23  
2.4x3.0mm  
5pF / 2  
5pF / 2  
2x240V  
2x50V  
DCHARGE  
OnSemi  
www.onsemi.com  
SC-70  
2.0x2.1mm  
Supply Capacitor CVBAT and charge pump capacitor CV5V  
Low ESR capacitors should be used to minimize VAT ipple. Multi-layer ceramic capacitors are recommended since  
they have extremely low ESR and are avaiable in small footprints. The capacitor should be located as close to the  
device as possible.  
X5R dielectric material is recommendedto their ability to maintain capacitance over wide voltage and temperature  
range.  
Table 8. Recommended CVBAT anC5V Capacitor  
Rated  
Component  
Prt Number  
C
TC Code  
X5R  
Size  
0402  
0402  
0603  
Manufacturer  
Voltage  
GRM155R60J474  
470nF  
1µF  
6.3V  
CV5V  
GRM155R60J105  
GRM155R61A105  
6.3V  
10V  
Murata  
www.murata.com  
X5R  
GRM188R60J475  
4.7µF  
X5R  
6.3V  
CVBAT  
f different output capacitor is chosen, ensure low ESR values and voltage ratings.  
5. A low parasitic capacitance improves charging efficiency.  
www.austriamicrosystems.com/AS3635  
1.4-8  
16 - 20  
AS3635  
Datasheet - Application Information  
PCB Layout Guideline  
Following layout recommendations apply:  
1. Keep the path (and area) of GND - CVBAT - VBAT - TCHARGE(primary) - SW - GND as short as possible to min-  
imize the leakage inductance of TCHARGE and ensure a proper supply connection for the AS3635  
2. Place CVBAT as close as possible to the AS3635.  
3. Ensure wide and short PCB paths for the path GND - CFLASH - XFLASH - QIGBT - GND to allow 150A to flow dur-  
ing the flash pulse. Connect this GND only at a single place to the main GND plane.  
4. The IGBT has two ground connections: One ground for the driving input and one ground for the power path.  
5. Ensure larger spacings for all high voltage paths; check with the PCB manufacturer to ensure proper minimum  
spacing for 320V paths and 4kV (Xenon tube trigger pin) paths.  
6. Minimize the parasitic capacitance of the PCB on the anode of DCHARGE especially to GND and VFLASH  
7. See austriamicrosystems “WLP-CSP-Handling-Guidelines_1V0.pdf” for proper handling, PCB layout ad s
dering of the WL-CSP AS3635 device.  
See austriamicrosystems demoboard layout (described in application note ‘AN3635’).  
www.austriamicrosystems.com/AS3635  
1.4-8  
17 - 20  
AS3635  
Datasheet - Package Drawings and Markings  
10 Package Drawings and Markings  
Figure 22. 9 pin WL-CSP 1.5x1.5mm Marking  
ꢗꢅꢘꢃꢙꢔ  
ꢚꢘꢅꢛꢑꢉꢁꢋ  
ꢀꢁꢂꢃꢄꢅꢆꢇꢃꢈꢉꢊꢋꢁꢌꢍꢊꢎ  
ꢏꢁꢉꢉꢁꢐꢃꢄꢅꢆꢇꢃꢈꢏꢑꢒꢒꢃꢓꢅꢆꢎ  
3635  
<Code>  
Note:  
Line 1:  
Line 2:  
Line 3:  
austriamicrosystems logo  
3635 and version code (e.g. ‘A’ or ‘B’)  
<Code>  
Encoded Datecode (4 characters)  
Figure 23. 9 pin WL-CSP 1.5x1.5mm Package Dimension
#ꢁꢇ  
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ꢆꢋꢆꢌꢀ  
ꢈꢉ  
ꢀꢇꢇꢈꢉ  
ꢇꢈꢉ  
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ꢖ#  
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&#  
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*ꢆ  
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ꢁꢇꢇꢂꢃꢄꢅ#ꢇꢈꢉ  
www.austriamicrosystems.com/AS3635  
1.4-8  
18 - 20  
AS3635  
Datasheet - Ordering Information  
11 Ordering Information  
The devices are available as the standard products shown in Table 9.  
Table 9. Ordering Information  
Order Code  
Marking  
Description  
Delivery Form  
Package  
Xenon Flash Driver with 5V IGBT Control  
9-pin WL-CSP  
(1.5mm x 1.5mm)  
RoHS compliant /  
Green / Pb-Free  
ISW (charging current peak) = 900mA  
RIGBT_ON = 50Ω  
AS3635B-  
ZWLT  
3635B  
Tape & Reel  
IIGBT_SINK = 15mA  
IIGBT_BOOST = 46mA  
VTRIP trimmed by customer  
Xenon Flash Driver with 5V IGBT Control  
9-pin WL-CS
(1.5mm x 1.5mm)  
oHS compliant /  
Gren / Pb-Free  
ISW (charging current peak) = 900mA  
RIGBT_ON = 15Ω  
AS3635E-  
ZWLT  
3635E  
Tape & Reel  
IIGBT_SINK = 60mA  
IIGBT_BOOST = 46mA  
VTRIP trimmed by customer  
Note: All products are RoHS compliant and austriamicrosystems gree
Buy our products or get free samples online at ICdrect: http://www.austriamicrosystems.com/ICdirect  
Technical support is found at http://www.austriamicstems.com/Technicl-Support  
For further information and requests, please contact s mailto:sales@autriamicrosystems.com  
or find your local distributor at http://www.austriamicrosystems.com/dtributor  
Note: AS3635-ZWLT  
AS3635-  
B, E Version Code - see Ta9 - ‘Description
Z
Temperature Range: -30ºC - 85ºC  
WL Package: Wafer Level Chip Scale Package (WL-CSP) 1.5x1.5mm  
Delivery Form: Tape & Reel  
T
www.austriamicrosystems.com/AS3635  
1.4-8  
19 - 20  
AS3635  
Datasheet - Ordering Information  
Copyrights  
Copyright © 1997-2011, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe.  
Trademarks Registered ®. All rights reserved. The material herein may not be reproduced, adapted, merged, trans-  
lated, 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.  
Disclaimer  
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 regadin
the information set forth herein or regarding the freedom of the described devices from patent infringement. autria
crosystems AG reserves the right to change specifications and prices at any time and without notice. Therefre, prior  
to designing this product into a system, it is necessary to check with austriamicrosystems AG for curent information.  
This product is intended for use in normal commercial applications. Applications requiring extendetemperature  
range, unusual environmental requirements, or high reliability applications, such as military, medical le-support or life-  
sustaining equipment are specifically not recommended without adional processing by auramrosystems AG for  
each application. For shipments of less than 100 parts the manufcturiflow might show deviaons from the standard  
production flow, such as test flow or test location.  
The information furnished here by austriamicrosystems Abelieved to be correct and accurate. However,  
austriamicrosystems AG shall not be liable to recipient or ahird party for any dmages, including but not limited to  
personal injury, property damage, loss of profits, loss of use, nterruption of busess indirect, special, incidental or  
consequential damages, of any kind, in connection with or arising out of the rnishng, performance or use of the tech-  
nical data herein. No obligation or liability to recipor any third party l arie or flow out of  
austriamicrosystems AG rendering of technicl r other services.  
Contact Information  
Headquarters  
austriamicrosysteAG  
Tobelbaderstrsse 30  
Schloss Premtaeten  
A-8141 ria  
Te+43 (0) 3136 500 0  
Fax: 43 (0) 3136 525 01  
For Sales Offices, Distributors and Representatives, please visit:  
http://www.austriamicrosystems.com/contact  
www.austriamicrosystems.com/AS3635  
1.4-8  
20 - 20  

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