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What is G5565?

This electronic component, produced by the manufacturer "Global Mixed-mode Technology", performs the same function as "Quad-Output TFT LCD Bias Power".


G5565 Datasheet PDF - Global Mixed-mode Technology

Part Number G5565
Description Quad-Output TFT LCD Bias Power
Manufacturers Global Mixed-mode Technology 
Logo Global Mixed-mode Technology Logo 


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Global Mixed-mode Technology
G5565
Quad-Output TFT LCD Bias Power
Features
„ Input Supply Range: 9.5V ~ 14V
„ Current mode Boost converter for AVDD
¾ Adjustable switching frequency
¾ Integrated 20V/4A ,0.1switching N-MOSFET
¾ 1.5% accurate with 3.5-A switching current
„ Buck Converter for VLOGIC
¾ Fixed 750kHz switching frequency
¾ Integrated 12-V/0.2-C Switching N-MOSFET
¾ 1.5% accurate with 1.5-A switching current
„ Charge-pump regulator for VGON & VGOFF
„ Built-in power-on sequence and soft-start
function
„ GD Signal to drive external P-MOSFET
„ Protection Function
¾ Input Under Voltage Lockout (UVLO)
¾ Thermal overload Protection (TOP)
¾ Over-Voltage Protection for (OVP)
¾ Over-Current Protection (OCP)
¾ Output Under Voltage Protection (UVP)
¾ Short Circuit Protection (SCP)
„ Available in TQFN-5X5-28 Package
Applications
„ TFT LCD Displays
General Description
The G5565 DC-DC converter provides regulated volt-
ages required by thin-film transistor (TFT) liquid crystal
displays (LCD) panels in TQFN5X5-28 package. One
step-up converter, one step-down converter, and two
charge pumps regulators converter the 8V to 14V input
voltage into four output voltages. These features com-
plete the power- supply requirements of large screen
LCD panels. The step-up converter provides source
voltages VAVDD and the step-down converter provides
logic voltage VLOGIC for the system. The dual charge
pumps regulators independently generate adjustable
regulated output voltages VGL and VGH to bias the
LCD using external charge pump attached to the
switching node. . The step-up converter operates with a
adjustable switching frequency from 500kHz to 2MHz.
And step-down converter operates with a fixed switching
frequency of 750kHz.
Both step-up and step-down converters operate in
asynchronous switch mode. Current mode control pro-
vides fast transient response and eases loop stabiliza-
tion. Fault protection includes cycle-by-cycle current
limit, thermal shutdown and short-circuit protection,
and over voltage protection of the step-up converter.
The G5565 is available in a 28-pin TQFN (5mm x 5mm)
package.
Ordering Information
ORDER
NUMBER
G5565R61U
Note: R6: TQFN5X5-28
1: Bonding Code
U: Tape & Reel
Pin Configuration
MARKING
5565
TEMP.
RANGE
-40°C ~ +85°C
PACKAGE
(Green)
TQFN5X5-28
OS
AGND
FB
GD
COMP
SS
REF
1
2
3
4
5
6
7
Thermal
Pad
21 FBP
20 FSW
19 DLY1
18 COMPB
17 FBB
16 VIN
15 VIN
Ver: 0.1
Aug 06, 2012
G5565 TQFN5X5-28
Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.
TEL: 886-3-5788833
http://www.gmt.com.tw
1


Part Details

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