L99LDLH32中文资料32 channels LED driver with Automotive CAN-FD Light interface数据手册ST规格书

描述 Description

所有功能AEC-Q100 qualification ongoingGeneral CAN FD Light compatible serial interface High precision oscillator integrated, no external quartz required QFN48L 7x7 with exposed pad Time out watchdog with limp home Low standby current Stand alone / fail-safe and bus mode operation Direct drive (1 direct input) - for 1 function group-supporting ASIL requirements Widest configurability by embedded non-volatile and volatile memories Operating supply voltage range from 5.5 V to 40 VLinear regulators section Operating temperature range from -40 °C to 150 °C 32 constant current output channels high side configuration Output current from 1 mA to 15 mA parallelable outputs Output voltage up to 35 V Feedback voltage to external preregulator to optimize the regulation voltage minimizing power dissipation overall Current setting per channel by 8-bit DAC Analogue dimming, 8-bit PWM channel individual exponential brightness control and 8-bit global PWM dimming Programmable PWM frequency Slow turn on/off time, gradual outputs delay and dithered clock for EMC performances improvementProtection and diagnostic Integrated 8-bit ADC - for full and flexible diagnostic 1 dedicated line for fault bus Temperature warning (1 threshold) Overtemperature shutdown Short-circuit and open load detection and protection Automatic LED current derating through external NTC measurement and device junction temperature (TJ)

特性 Features

• AEC-Q100 qualification ongoing
• General
•CAN FD Light compatible serial interface
•High precision oscillator integrated, no external quartz required
•QFN48L 7x7 with exposed pad
•Time out watchdog with limp home
•Low standby current
•Stand alone / fail-safe and bus mode operation
•Direct drive (1 direct input) - for 1 function group-supporting ASIL requirements
•Widest configurability by embedded non-volatile and volatile memories
•Operating supply voltage range from 5.5 V to 40 V
• Linear regulators section
•Operating temperature range from -40 °C to 150 °C
•32 constant current output channels high side configuration
•Output current from 1 mA to 15 mA parallelable outputs
•Output voltage up to 35 V
•Feedback voltage to external preregulator to optimize the regulation voltage minimizing power dissipation overall
•Current setting per channel by 8-bit DAC
•Analogue dimming, 8-bit PWM channel individual exponential brightness control and 8-bit global PWM dimming
•Programmable PWM frequency
•Slow turn on/off time, gradual outputs delay and dithered clock for EMC performances improvement
• Protection and diagnostic
•Integrated 8-bit ADC - for full and flexible diagnostic
•1 dedicated line for fault bus
•Temperature warning (1 threshold)
•Overtemperature shutdown
•Short-circuit and open load detection and protection
•Automatic LED current derating through external NTC measurement and device junction temperature (TJ)

简介

L99LDLH32属于集成电路（IC）的LED驱动器。由制造生产的L99LDLH32LED 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。