AF1860 Datasheet | Alfa-MOS

Alfa-MOS Technology 60V 1.5A 52KHZ PWM Step Down DC-DC LED Driver General Description AF1860 is the monolithic IC designed for a step-down DC/DC converter capable of driving 1.5A load without an additional transistor. The input voltage range is up to 60V. Its feedback voltage, VFB, is 200m V. The AF1860 operates at a switching frequency of 52k Hz. The external shutdown function is controlled by a logic level on the ON/OFF pin and then the circuit es 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 200m V to 0V. The self-protection Features include a cycle-by-cycle current limit and a thermal protection. The AF1860 is available in standard SOP-8EP package. Features - VIN Max = 60V - VFB = 200m V - Frequency 52k Hz - ILED Max 1.5A ( SOP-8EP ) - On/Off input may be used for the Analog Dimming - Thermal protection - Cycle-by-cycle current limit Application - DC-DC or AC-DC LED driver applications - Back lighting of flat panel displays - General purpose constant current source - Automotive - Chargers Pin Define (SOP-8EP) Marking Information (SOP-8EP) ©Alfa-MOS Technology Corp. Rev.C June 2018 .alfa-mos. Page 1 Alfa-MOS Technology Typical Application Circuit 60V 1.5A 52KHZ PWM Step Down DC-DC LED...