Datasheet Texas Instruments LM3697 — Datenblatt

Hersteller	Texas Instruments
Serie	LM3697

3-String-Hintergrundbeleuchtungstreiber mit 11-Bit-Exponential-Dimmen

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PDF, 1.5 Mb, Revision: C, Datei veröffentlicht: Oct 23, 2015

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	LM3697YFQR
Lifecycle Status	Active (Recommended for new designs)
Manufacture's Sample Availability	Yes

Parameters / Models	LM3697YFQR
Number of Channels	3
Duty Cycle(Max), %	94
LED	30
LED Current Per Channel, mA	30
Operating Temperature Range, C	-40 to 125
Package Group	DSBGA
Package Size: mm2:W x L, PKG	See datasheet (DSBGA)
Peak Efficiency, %	91
Rating	Catalog
Shutdown Current(Typ), uA	1
Special Features	I2C Control,OVP,PWM Control
Switching Frequency(Max), kHz	1100
Topology	Boost
Type	Inductive
Vin(Max), V	5.5
Vin(Min), V	2.7
Vout(Max), V	41.1

	LM3697YFQR
RoHS	Compliant

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Analog PWM Dimming in White-LED Drivers
PDF, 539 Kb, Datei veröffentlicht: 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

Serie: LM3697 (1)