General Description

BD18353EFV-M/MUF-M is a 1ch LED Controller. High

side current detection amplifier is built-in. PWM

dimming duty can be freely set with built-in PWM

generation circuit. PWM dimming realizes by driving an

external P-ch MOSFET. Outputs abnormal LED status

to the FAULT_B pin. Two systems of analog dimming

are built-in. High precision 3.0 V output power supply

for analog dimming and PWM dimming setting is built-in.

Features

◼ AEC-Q100 Qualified(Note 1)

◼ Functional Safety Supportive Automotive Products

◼ Rail-to-Rail Current Sense Amplifier

◼ PWM Dimming Signal Generator

◼ Over Voltage Protection (OVP)

◼ Short Circuit Protection (SCP)

◼ Analog Dimming (two systems)

◼ DRL Mode (100 Duty) Enable

◼ Outputs Abnormal LED Status (FAULT_B)

◼ Spread Spectrum Frequency Modulation

ON/OFF (SSFM_B)

(Note 1) Grade1

Applications

◼ Automotive Exterior Lamps

Rear, Turn, DRL/Position, Fog, High/Low Beam etc.

BD18353EFV-M属于集成电路（IC） > LED 驱动器。罗姆半导体集团制造生产的BD18353EFV-MLED 驱动器器件属于 LED 驱动器电源管理集成电路 (PMIC) 系列，可通过标称固定电压的电源为负载（通常为发光二极管）提供电流，并且电流可控。它与用于电压调节的类似产品的主要区别在于，这类器件提供较低的反馈电压（以提高系统能效），而且通常可对器件工作点进行外部控制，可在照明应用中用于实现调光功能。