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G1625 Datasheet

7-bit Programmable VCOM Reference

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G1625 pdf
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: 886-3-5788833
http://www.gmt.com.tw
1


Part Number G1625
Description 7-bit Programmable VCOM Reference
Maker GMT
Total Page 1 Pages
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