G1625 Datasheet, PDF (1/1 Pages) Global Mixed-mode Technology Inc – 7-bit Programmable VCOM Reference with Integrated Nonvolatile Memory

Global Mixed-mode Technology
G1625
7-bit Programmable VCOM Reference
with Integrated Nonvolatile Memory
Features
„ Integrated Nonvolatile Memory to Store VCOM
Setting
„ 100 Programming Times
„ I ²C Interface
„ 7-Bit, Adjustable Sink-Current Device
„ Resistor-Adjustable, Full-Scale Range
„ 2.5V to 3.6V Logic Supply Range
„ 7V to 18V Analog Supply Range
„ Protections:
Š Over Current Protection (OCP)
Š Over Temperature Protection (OTP)
„ TDFN3X3-8 Package
„ RoHS Compliant
Applications
„ TFT-LCD Panels
Ordering Information
ORDER
NUMBER
G1625RD1U
Note: RD: TDFN3X3-8
1: Bonding Code
U: Tape & Reel
MARKING
DS961
General Description
The G1625 provides a programmable reference volt-
age for TFT-LCD panel VCOM adjustment. A 7-bit
digital-to-analog converter (DAC) detects current from
an external resistor-divider to create the VCOM refer-
ence voltage. This voltage is used as the input to a
high current drive voltage buffer.
G1625 includes one time programmable (OTP) mem-
ory to store the DAC code on the chip, eliminating the
need for external EEPROM. The chip supports up to
100 write operations to OTP memory. G1625 has an
I²C interface to set the VCOM reference voltage and
write into OTP memory.
TEMP.
RANGE
-40°C to +85°C
PACKAGE
(Green)
TDFN 3X3-8
Pin Configuration
G1625
OUT 1
AVDD 2
VCOM 3
GND 4
Thermal
Pad
8 SET
7 SCL
6 SDA
5 DVDD
TDFN3X3-8
Ver: 0.2
Mar 25, 2013
TEL: [phone]
http://www.gmt.com.tw
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