G5966L Datasheet, PDF (1/1 Pages) Global Mixed-mode Technology Inc – Boost WLED Driver for Backlights

Global Mixed-mode Technology
G5966L
Boost WLED Driver for Backlights
Features
„ 3.2V to 24 V Input Supply Voltage
„ Boost Converter
Š Automatically Adjusting Output Voltage
Š 1.0MHz Switching Frequency
Š Integrated 2.0A 40V NFET
Š Internal Loop Compensation and Soft
Start
Š Over Current Protection
Š Over Voltage Protection
Š Over 90% High Efficiency
„ Six Channel Current Sink
Š Maximum 30mA Current Sink
Š 3% Current Matching and Accuracy
Š 100:1 PWM Brightness Dimming Range
„ Open/Short LED protection
„ Thermal Shutdown
„ Small 16-pin 3mmx3mm TQFN package
Applications
„ Notebook Displays LED Backlighting
„ LCD Monitor LED Backlighting
Ordering Information
ORDER
NUMBER
G5966LR41U
Note: R4: TQFN3X3-16
1: Bonding Code
U: Tape & Reel
Pin Configuration
MARKING
5966L
General Description
The G5966L is a 6-channel boost WLED driver for
backlight applications. It features a high-performance
boost converter, six channel current sink with 3% cur-
rent matching and accuracy, and PWM brightness
dimming control.
The boost converter automatically provides the regulated
output voltage for the WLED backlight without the need
to calculate the output for different LED types. The
switching frequency is 1MHz. It also integrates a 40V
NFET that provides high output power.
The 6-channel current sink is ideal for constant current
driving, and, well matched less than 3% (typical). To
set the maximum driving current, the ISET pin is used
to determine reference current. Each channel of the
current sink is set to 1000 times of this reference cur-
rent. A PWM pin can be used for PWM dimming.
The G5966L provides many protection schemes to
avoid any abnormal operation. Over current protection
is designed to protect internal NFET. It also provides
over voltage and over temperature protection. The
G5966L can detect open or short LED and offer pro-
tections.
The G5966L is available in a 16-pin 3x3mm TQFN
package.
TEMP.
RANGE
-40°C to 85°C
PACKAGE
(Green)
TQFN3X3-16
PGND 1
SW 2
IN 3
OUT 4
Thermal
Pad
12 CH4
11 PWM
10 GND
9 CH3
Ver: 0.5
Jul 30, 2013
G5966L TQFN3X3-16
Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.
TEL: [phone]
http://www.gmt.com.tw
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