Datasheet > G5920TP1U

G5920TP1U

更新时间： 2024-11-15 20:05:27

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描述
Interface Circuit

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中文翻译

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数据手册

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G5920TP1U 数据手册

Global Mixed-mode Technology Inc.

G5920

Three Channel, Ultra Low-Dropout, Constant-Current

White LED Bias

Features

General Description

Ultra Low 150mV Dropout at 20mA

The G5920 is a high performance ultra low- dropout

constant current bias supply for white LEDs. It can be

used as an alternative to the simple ballast resistors in

conventional parallel white LEDs applications. Each

white LED bias current is matching to 0.6%.

0.6% High Accuracy Current Matching

20mA Full Scale Current

32 Level Linear Current Brightness Control

PWM Brightness Control

2.5V to 5.5V Supply Voltage Range

SOT-23-6 and TSOT-23-6 Package

For dimming control, an enable input pin is controlled

by processor GPIO output pulses for 32 level linear

current. Using a low frequency PWM waveform to this

enable input pin also controls the average LED current

which is proportional to the PWM duty.

Applications

Mobile Phones

White LED backlighting

The G5920 is suitable for single cell Li-ion battery

power device that using low forward voltage white

LEDs. The white LEDs can be powered directly from

battery without extra external components. This takes

an advantage of highest efficiency and creates no EMI

problem.

Ordering Information

ORDER

NUMBER

G5920TB1U

---

ORDER NUMBER

MARKING

TEMP. RANGE

PACKAGE

(Pb free)

G5920TB1Uf

G5920TP1U

5920x

-40°C to 85°C

SOT-23-6

TSOT-23-6

Note:TB : SOT23-6

1: Bonding Code

U: Tape & Reel

TP : TSOT23-6

Pin Configuration

Typical Application Circuit

G5920

Linear Current Dimming

LED1

LED2

LED3

VCC

0.1µF

GND

V_BAT

G5920

LED2

GND

LED1

VCC

G5920

PWM Dimming

LED3

LED1

LED2

SOT-23-6/TSOT-23-6

LED3

VCC

GND

V_BAT

0.1µF

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver: 1.3

Apr 02, 2007

12 3 4 5 6 7...9

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