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G5916 Datasheet(PDF) 1 Page - Global Mixed-mode Technology Inc

Part No. G5916
Description  Flash LED Driver with 700mA Charge Pump
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Maker  GMT [Global Mixed-mode Technology Inc]
Homepage  http://www.gmt.com.tw
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G5916 Datasheet(HTML) 1 Page - Global Mixed-mode Technology Inc

   
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Ver: 0.2
Jun 11, 2009
TEL: 886-3-5788833
http://www.gmt.com.tw
1
G5916
Global Mixed-mode Technology Inc.
TDFN3X3-10
4
G5916
1
2
3
8
7
6
OUT
C1P
5
9
10
C1N
TDFN3X3-10
4
1
2
3
8
7
6
GND
IN
C2N
C2P
TORCH
5
9
10
FLASH
ISET
Thermal
Pad
IN
OUT
FLASH
C2N
GND
G5916
COUT
1µF
V
IN = 3V to 5.5V
C
IN
10µF
ISET
C2P
RSET
C2
1µF
TORCH
C1
1µF
C1N
C1P
FLASH
TORCH
Note: Recommend connecting the Thermal Pad
to the Ground for excellent power dissipation.
TDFN3X3-10
4
G5916
1
2
3
8
7
6
OUT
C1P
5
9
10
C1N
TDFN3X3-10
4
1
2
3
8
7
6
GND
IN
C2N
C2P
TORCH
5
9
10
FLASH
ISET
Thermal
Pad
IN
OUT
FLASH
C2N
GND
G5916
COUT
1µF
V
IN = 3V to 5.5V
C
IN
10µF
ISET
C2P
RSET
C2
1µF
TORCH
C1
1µF
C1N
C1P
FLASH
TORCH
Note: Recommend connecting the Thermal Pad
to the Ground for excellent power dissipation.
Flash LED Driver with 700mA Charge Pump
Features
Independent flash/torch/shutdown modes
Up to 700mA drive current
Flash timeout protection
Torch mode set to 20% of flash current
1X/2X mode for torch mode to maximize effi-
ciency
Wide input voltage range from 3V to 5.5V
<1
μA shutdown current
Input/Output over-voltage protection
Short-circuit protection
Over-temperature protection
Tiny TDFN3X3-10 package
Applications
Cellular camera phone
Digital still camera
PDA camera
Camcorder torch lamp
General Description
The G5916 is a charge pump for high-current white
LED driving used in camera flash applications. The
architecture of two bucket capacitors is used to de-
crease the output ripple and provides low EMI solution
compared to inductive DC-DC regulators.
The G5916 has independent flash/torch/shutdown
modes. The G5916 is capable to output 500mA of re-
gulated current in flash mode for the duration greater
than 500ms. While driving 700mA output current, the
reduced duration is limit by G5916’s over-temperature
protection. There is a one second safety timer in this
mode to avoid LED damage caused by overheat. The
G5916 can outputs 20% of flash mode current con-
tinuously in torch mode. The flash mode has priority
over the torch mode.
A resistor connected to ISET pin, which is in series
with the LED, is to set the current. The ISET voltage is
250mV and 50mV in flash and torch mode respec-
tively.
The G5916 is available in tiny 10-pin 3x3mm TDFN
package.
Ordering Information
ORDER
NUMBER
MARKING
TEMP.
RANGE
PACKAGE
(Green)
G5916RE1U
5916
-40°C to 85°C
TDFN3X3-10
Note: RE: TDFN3X3-10
1: Bonding Code
U: Tape & Reel
Pin Configuration
Typical Application Circuit


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