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AW3640 Datasheet Preview

AW3640 Datasheet

200mA 1-Wire Configurable Front Flash LED Driver

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AW3640
September 2018 V1.3
200mA 1-Wire Configurable Front Flash LED Driver
with Ultra Small Package
l
FEATURES
Front Flash LED Driving
200mA Maximum Flash Current
tia GENERAL DESCRIPTION
AW3640 is a low voltage-drop current sink LED
driver, which supports both Torch and Flash modes.
The current-regulation sink integrated in the chip
16 Steps Current 1-wire Pulse Configurable,
12.5mA/step
n make the LED current capable of keeping constant
when input voltage, LED forward voltage or
LED Current Accuracy: ±15%
Low Dropout Voltage: 65mV@200mA (Typ.)
Efficiency: 94% (VIN=3.6V, VF=3.4V)
Shutdown Current: <0.1μA
Ultra Small 1.5×1.0×0.55mm3 DFN-6L Package
temperature changing. The LED current can be
adjusted among 16 steps by sending 1-wire pulse
e into the EN pin, and the maximum value is 200mA.
AW3640 is available in an ultra small 1.5mm×
d 1.0mm×0.55mm DFN-6L package. And only one
i multi-layer ceramic capacitor is needed for the
f peripheral of the solution.
APPLICATION
nIn shut down mode, AW3640 turns off all internal
circuit and the consumption is less than 0.1μA.
Front Camera Flash
o The device requires 2.8V~5.5V input voltage range
and an operating temperature range of -40~85.
C LED Torch Mode
TYPICAL APPLICATION CIRCUIT
ic Battery
+
_
1μF
in
4
VIN
AW3640
aw
GPIO
6 EN
12
n16
ILED 2
GND
1,3
Figure 1 AW3640 Application Circuit for Single LED
All the trademarks mentioned in the document are the property of their owners.
www.awinic.com.cn
1
Copyright © 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD




AWINIC

AW3640 Datasheet Preview

AW3640 Datasheet

200mA 1-Wire Configurable Front Flash LED Driver

No Preview Available !

PIN CONFIGURATION AND TOP MARK
AW3640 TOP VIEW
AW3640
September 2018 V1.3
AW3640 MARKING
GND 1
ILED 2
GND 3
PIN DEFINITION
No.
NAME
1
GND
2
ILED
3
GND
4
VIN
5
NC
6 EN
l
5 NC
tia
4 VIN
n
e
fid D ---- AW3640DNR
XX ---- Manufacture trace code
Ground.
nDESCRIPTION
o Open drain current sink pin, connected to LED cathode.
Ground.
C Power Supply (2.8V-5.5V)
Not connected.
6
ic EN
Enable pin. LED current can be adjusted by sending 1-wire pulse into
this pin.
in
aw
www.awinic.com.cn
2
Copyright © 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD


Part Number AW3640
Description 200mA 1-Wire Configurable Front Flash LED Driver
Maker AWINIC
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AW3640 Datasheet PDF






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