Datasheet Texas Instruments LM36922HYFFR — 数据表

高效双串白色LED驱动器12-DSBGA -40至85

数据表

PDF, 1.7 Mb, 修订版: A, 档案已发布: Feb 16, 2016

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Lifecycle Status	Active (Recommended for new designs)
Manufacture's Sample Availability	Yes

Number of Channels	2
Duty Cycle(Max)	92 %
LED	20
LED Current Per Channel	30 mA
Operating Temperature Range	-40 to 85 C
Package Group	DSBGA
Package Size: mm2:W x L	See datasheet (DSBGA) PKG
Peak Efficiency	92 %
Rating	Catalog
Shutdown Current(Typ)	1.2 uA
Special Features	Adjustable Switch Frequency,CABC,Direct PWM Dimming,I2C Control,OVP,Thermal Shutdown
Switching Frequency(Max)	1050 kHz
Topology	Boost,Current Sink,Multi-Channel
Type	Inductive
Vin(Max)	5.5 V
Vin(Min)	2.5 V
Vout(Max)	40 V
Vout(Min)	37 V

RoHS

Compliant

Evaluation Modules & Boards: LM36922EVM
LM36922 Highly Efficient Dual-String White LED Driver Evaluation Module
Lifecycle Status: Active (Recommended for new designs)
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Analog PWM Dimming in White-LED Drivers
PDF, 539 Kb, 档案已发布: Dec 21, 2016
Pulse-width modulation (PWM) is a common type of dimming used to adjust the current in white-LEDdriver devices. PWM dimming takes a rectangle waveform with variable positive duty cycle (D) and adjuststhe LED current proportionally. For many smaller format white LED drivers (7-inch screen size or smaller),the PWM signal is converted to a DC control voltage and made to drive the LED current in

系列: LM36922H (1)