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GM9130HV fiches techniques PDF

Gamma - 3A LED Driver

Numéro de référence GM9130HV
Description 3A LED Driver
Fabricant Gamma 
Logo Gamma 





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GM9130HV fiche technique
GM9130HV
3A LED Driver with Dimming Control
Description
Features
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.
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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
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.
Typical Application Circuits
VIN up to 60V
CIN1
470μF
GM9130HV
1 VIN
5 ON/OFF
CIN2
0.10μF
SW 2
FB 4
L1
100μH
COUT
470μF
RLOAD
Figure 1. Application for GM9130HV
www.gammamicro.com.tw 1
Free Datasheet http://www.datasheet4u.com/

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