Datasheet Texas Instruments LM3631YFFR

Integrated WLED Backlight Driver and Bias Power for LCD panels 24-DSBGA -40 to 85

Datasheets

PDF, 1.5 Mb, File published: Aug 21, 2014

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

Number of Channels	2
Duty Cycle(Max)	94 %
LED	16
LED Current Per Channel	25 mA
Operating Temperature Range	-40 to 85 C
Package Group	DSBGA
Package Size: mm2:W x L	See datasheet (DSBGA) PKG
Peak Efficiency	90 %
Rating	Catalog
Shutdown Current(Typ)	1 uA
Special Features	Adjustable Switch Frequency,CABC,Enable/Shutdown,I2C Control,OVP,PWM Control,Power Good,Soft Start
Switching Frequency(Max)	1100 kHz
Topology	Boost,Current Sink,LDO,Multi-Channel
Type	Inductive
Vin(Max)	5.0 V
Vin(Min)	2.7 V
Vout(Max)	30 V

RoHS

Compliant

Evaluation Modules & Boards: LM3631EVM
LM3631EVM Complete LCD Backlight and Bias Power Evaluation Module
Lifecycle Status: Active (Recommended for new designs)
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Analog PWM Dimming in White-LED Drivers
PDF, 539 Kb, File published: 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

Series: LM3631 (1)