Datasheet > G2619

G2619

更新时间： 2024-04-09 19:00:05

品牌	Logo	应用领域
致新 - GMT		/
页数	文件大小	规格书
1页	104K
描述
OVP, FB, DIMC, GND, LX, BP, PWM, EN, PWM Dimming 100 ~ 200k Hz, 6SxP

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G2619 数据手册

Global Mixed-mode Technology

G2619

High Efficiency, Constant Current 20V White-

LEDs Driver

Feature

Description

The G2619 step-up converter drives white LEDs with a

constant current to provide backlight in cell phones, PDAs,

and other hand-held devices. It features allowing series

connection of the white LEDs so that the LED currents are

identical for uniform brightness. An enable input can be

pulsed repeatedly to adjust LED’s brightness. The fast 1.0

MHz current-mode PWM control allows for smaller

capacitor and inductor. Fault condition protection uses

cycle-by-cycle current limiting to sense maximum inductor

current, thermal protection and over-voltage protection.

Also included soft-start eliminates inrush current during

start-up. The low reference voltage minimized the power

loss across the current-setting resistor.

Operating Voltage: 2.5V to 20V.

High Operating Frequency: 1MHz

High Output Voltage: Up to 20V(Typ.)

Digital Dimming Control.

Built-in Cycle-by Cycle Current-Limiting.

Built-in Soft-Start Function.

0.2V Low Reference Voltage

Thermal Overload Protection

Thin 8-Lead 2x2 TDFN Packages

Application

GPS Navigation System

Compact Back Light Module

Constant Current Source

LED Module

The G2619 is available in TDFN2x2-8 packages.

Ordering Information

ORDER

NUMBER

G2619RC1U

TEMP.

RANGE

PACKAGE

(Green)

MARKING

2619

-40°C to 85°C

TDFN2x2-8

Note: RC: TDFN2X2-8

1 : Bonding Code

U: Tape & Reel

Pin Configuration

Typical Application Circuit

G2619

OVP

GND9

PWM

Thermal

Pad (EP)

DIMC

GND

TDFN2X2-8

※ Use the tantalum capacitor to eliminate inductor noise on

output terminal when you want to control dimming function.

Ver: 0.1

Jan 28, 2013

TEL: 886-3-5788833

http://www.gmt.com.tw

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