L99LDLH32集成電路（IC）的LED驅動器規(guī)格書PDF中文資料

L99LDLH32屬于集成電路（IC）的LED驅動器。由意法半導體集團制造生產的L99LDLH32LED 驅動器器件屬于 LED 驅動器電源管理集成電路 (PMIC) 系列，可通過標稱固定電壓的電源為負載（通常為發(fā)光二極管）提供電流，并且電流可控。它與用于電壓調節(jié)的類似產品的主要區(qū)別在于，這類器件提供較低的反饋電壓（以提高系統(tǒng)能效），而且通?？蓪ζ骷ぷ鼽c進行外部控制，可在照明應用中用于實現調光功能。

Features

? AEC-Q100 qualified

? General

– CAN FD Light compatible Serial Interface,

Protocol Handler, Draft Specification

Proposal (DSP) available from CAN in

Automation (CiA)

– High precision oscillator integrated, no

external quartz required

– QFN48L 7x7 with exposed pad

– Timeout 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?

5.5 V – 40 V

? Linear Regulators section

– Operating temperature range?

- 40°C – 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 pre-regulator,

to optimize the regulation voltage

minimizing overall power dissipation

– 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 better EMC

performances

? Protection and diagnostic

– Integrated 8-bit ADC, for full and flexible

diagnostic

– 1 dedicated line for fault bus

– Temperature warning (1 threshold)

– Over-temperature shutdown

– Short circuit and open load detection and

protection

– Automatic LED current derating, through

external NTC measurement and device

junction temperature (TJ)

Applications

? Automotive OLED Rear Lighting

? Automotive Ambient Lighting