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AS3635 PDF даташит

Спецификация AS3635 изготовлена ​​​​«austriamicrosystems» и имеет функцию, называемую «Xenon Flash Driver».

Детали детали

Номер произв AS3635
Описание Xenon Flash Driver
Производители austriamicrosystems
логотип austriamicrosystems логотип 

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AS3635 Даташит, Описание, Даташиты
Datasheet
AS3635
Xenon Flash Driver with 5V IGBT Control
1 General Description
The AS3635 is a highly integrated photoflash charger
with build in IGBT driver.
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.
In circuit fuse trimming allows to set the voltage on the
photoflash capacitor to ±3% accuracy.
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.
Warning: Lethal voltages are present on applications
using AS3635! Do not operate without train-
ing to handle high voltages.
Figure 1. Typical Operating Circuit
2 Key Features
Build in 5V charge-pump for IGBT gate drive
Photoflash voltage accuracy programmable to ±3%
(in circuit One Time Programmable - OTP)
Trip voltage accuracy ±1.5%
Small Size 1.5mm x 1.5mm x 0.6mm
PCB: No microvias need
Average input current < 320mA
Few external components
- No Schottky-Diode needed
- No output voltage divider needed
Reliable Flash on/off for IGBT timing.
Charge time < 4sec @ Vbat>2.7V, CFLASH =22µF
Charge complete indicator
Undervoltage lockout
Available in a tiny WL-CSP Package
3x3 balls 0.5mm pitch, 1.5x1.5mm package size
3 Applications
Xenon Flash driver for mobile phones, PDA and DSC
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AS3635
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AS3635 Даташит, Описание, Даташиты
AS3635
Datasheet - Pinout
4 Pinout
Pin Assignment
Figure 2. Pin Assignments (Top Through View)
  
 

 

 

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Pin Description
Table 1. Pin Description for AS3635
Pin Number
A1
A2
A3
B1
B2
B3
C1
C2
C3
Pin Name
SW
VBAT
V5V
CHARGE
PGND
IGBT_GATE
FLASH
GND
DONE
Description
Xenon DCDC converter switching node
Positive supply voltage input
5V charge pump output
Digital input pin, active high - enables charging of photoflash capacitor
Power ground - connect to ground (GND)
IGBT 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)
Digital open drain output, active low - indicates end of charging
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AS3635 Даташит, Описание, Даташиты
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
CHARGE, DONE, FLASH to GND
-0.3
VBAT +
0.3
V
maximum 7.0V
IGBT_GATE to GND
-0.3
V5V +
0.3
V
SW to PGND
-0.3 +55.0
V
PGND to GND
0.0 0.0
Connect PGND to GND directly below
V the pad (short connection
recommended)
Input Pin Current without causing latchup
-100
+100
+IIN
mA
Norm: EIA/JESD78
Continuous Power Dissipation (TA = +70ºC)
Continuous power dissipation
0.76 W
PT1
Electrostatic Discharge
ESD pins VBAT, CHARGE, DONE, FLASH2
±15000
±8000
V
V
Air Discharge to module;
IEC 61000 -4 -2 test bench
Contact Test to module;
IEC 61000 -4 -2 test bench
ESD HBM pins SW, IGBT_GATE, PGND, V5V
±2000
V
Norm: MIL 883 E Method 3015
ESD CDM
±500
V
Norm: JEDEC JESD 22-C101C
ESD MM
±100
V Norm: JEDEC JESD 22-A115-A level A
Temperature Ranges and Storage Conditions
Storage Temperature Range
-55 +125
ºC
Humidity
5 85 %
Non condensing
Body Temperature during Soldering
+260 ºC according to IPC/JEDEC J-STD-020
Moisture Sensitivity Level (MSL)
MSL 1
Represents a max. floor life time of
unlimited
1. Depending on actual PCB layout and PCB used
2. Assembled on PCB board (requires capacitor CVBAT); special PCB layout (spark gaps) and external resistors
required; system test for completed module (fully capsuled), no permanent interruption of operation
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