SP2260-60V Buck LED Driver

DESCRIPTION

SP2260 is the monolithic IC designed for a step-down LED driver capable of driving 1.5A/3A load without an additional transistor.

The input voltage range is up to 60V. Its feedback voltage, VFB, is 200mV. The SP2260 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. SP2260 is available in standard TO-263 and SOP-8 with power pad. package.

FEATURES

VIN Max = 60V

VFB = 200mV

Frequency 52kHz

ILED Max 1.5A with PSOP-8L

ILED Max 3.0A with TO-263-5L

On/Off input may be used for the Analog Dimming

Thermal protection

Cycle-by-cycle current limit

APPLICATIONS

DC/DC LED driver applications

Backlighting for flat panel displays

General purpose constant current source

Automotive

Chargers