GM9130HV

GM9130HV 3A LED Driver with Dimming Control 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-bycycle current limit and a thermal protection. The GM9130HV is available in standard TO2205, 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 Typical Application Circuits GM9130HV VIN up to 60V 1 VIN SW 2 L1 100μH 5 ON/OFF CIN1 470μF CIN2 0.10μF FB 4 COUT 470μF RLOAD Figure 1. Application for GM9130HV www.gammamicro.com.tw Free Datasheet http://www.datasheet4u.com/ GM9130HVV2.02 1 GM9130HV 3A LED Driver with Dimming Control Marking Information and Pin Configurati...