G2109 Datasheet, PDF (1/1 Pages) Global Mixed-mode Technology Inc – Photoflash Capacitor Charger for DSC

Global Mixed-mode Technology
G2109
Photoflash Capacitor Charger for DSC
Feature
2.9V to 5.5V Supply Voltage Operating Range.
Adjustable Output Voltage.
Adjustable Peak Current.
Charge Complete Indicator.
Built-in IGBT Driver.
Built-in Slow Charge Function.
Thermal Protection
Built-in Output Short Circuit Protection
Charges Any Size Photoflash Capacitor.
Small 10-lead DFN Package.
Application
Digital / Film Camera Flash
PDA / Cell Phone Flash.
Description
The G2109 is a charger IC for Photoflash capacitor with
soft-start function, an IGBT driver for igniting flash tube,
adjustable output voltage and adjustable primary peak
current to perform energy transition on each charge cycle.
The output voltage is determined by voltage divider
connecting to the anode of the rectifying diode. The
voltage sensing path is cut off when charging function to
be completed to maintain minimum output voltage decay.
It also provides SCP function for the voltage divider open
or output short.
Ordering Information
ORDER
NUMBER
G2109K21U
Note: K2: TDFN2X2-10
1: Bonding Code
U: Tape & Reel
Pin Configuration
MARKING
2109
TEMP.
RANGE
-40°C to +85°C
PACKAGE
(Green)
TDFN2X2-10
SC 1
DRIVER 2
VCC 3
TRIGGER 4
CHARGE 5
G2109
Exposed
Pad
10 LX
9 VREF
8 ADJ
7 _FB
6 READY
TDFN2X2-10
Note: Exposed Pad must connect to GND.
Ver: 0.7
Feb 29, 2012
TEL: [phone]
http://www.gmt.com.tw
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