GM9130HVTB5TG datasheet(1/9 Pages) GAMMA

Part #	GM9130HVTB5TG

Description	3A LED Driver with Dimming Control

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Manufacturer	GAMMA [Gamma Microelectronics Inc.]

Direct Link	http://www.gammamicro.com.tw/

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GM9130HV

3A LED Driver with Dimming Control

www.gammamicro.com.tw

Typical Application Circuits

Description

GM9130HV is the monolithic IC designed for a

step-down DC/DC converter capable of driving

3A load without an additional transistor. The

input voltage range is up to 60V. Its feedback

voltage, VFB, is 200mV. The GM9130HV

operates at a switching frequency of 52kHz. The

external shutdown function is controlled by a

logic level on the ON/OFF pin and then the circuit

comes into the standby mode with ISTBY~50μA

(typ.).

The ON/OFF pin may be used for the analog

dimming. As the voltage on the ON/OFF pin is

increased from 0.07V to 0.67V, the voltage on

the FB pin falls from 200mV to 0.

The self-protection features include a cycle-by-

cycle current limit and a thermal protection.

The GM9130HV is available in standard TO220-

5, and TO263-5 packages.

Besides, SOP8 with heat sink and TO252-5

packages are also available. However, these

packages are limited to heat dissipation and the

ILED is suggested below 2A.

Features

Maximum input voltage up to 60V

VFB: 200mV

Frequency: 52KHz

ILED = 3.0A maximum

ON/OFF input may be used for the analog

dimming

Thermal protection

Cycle by cycle current limit

SW

VIN up to 60V

GM9130HV

FB

L1

100μH

COUT

470μF

4

ON/OFF

2

VIN

5

1

CIN2

0.10μF

CIN1

470μF

RLOAD

Figure 1. Application for GM9130HV

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GM9130HVTB5TG Datasheet(PDF) 1 Page - Gamma Microelectronics Inc.

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