Datasheet Linear Technology LT1942 — Datenblatt

Hersteller	Linear Technology
Serie	LT1942

Quad DC / DC-Wandler für TFT Supply Plus LED-Treiber mit dreifachem Ausgang

Datenblätter

PDF, 264 Kb, Revision: B, Datei hochgeladen: Sep 3, 2017

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Verpackung

	LT1942EUF#PBF	LT1942EUF#TRPBF
N	1	2
Package	4x4 QFN-24 Paketumrisszeichnung	4x4 QFN-24 Paketumrisszeichnung
Package Code	UF	UF
Package Index	05-08-1697	05-08-1697
Pin Count	24	24

Parameter

Parameters / Models	LT1942EUF#PBF	LT1942EUF#TRPBF
Boost Switch Current, A	0.08, 0.08	0.08, 0.08
Demo Boards	DC688A	DC688A
Export Control	no	no
Features	Integrated Schottky Diode, Power Good, Output Disconnect, Open LED Protection	Integrated Schottky Diode, Power Good, Output Disconnect, Open LED Protection
Number of Outputs	4	4
Operating Temperature Range, °C	0 to 85	0 to 85
Vin Max, V	16	16
Vin Min, V	2.6	2.6

Öko-Plan

	LT1942EUF#PBF	LT1942EUF#TRPBF
RoHS	Compliant	Compliant

Artikel

Herunterladen
Compact Power Supply Drives TFT-LCD and LED Backlight &mdash LT Journal
PDF, 301 Kb, Datei veröffentlicht: Mar 25, 2005
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DESIGN IDEAS Compact Power Supply Drives
TFT-LCD and LED Backlight by Dongyan Zhou
Introduction Li-Ion to 4-Inch or
The LT1942 is a highly integrated, 5-Inch TFT-LCD L1
22ВµH VIN
3V TO 4.2V R5
442k C3
0.22ВµF
16V C2
0.22ВµF
16V R6
63.4k R4
10k
R3
665k
VIN D3
FB3 SW3 0.1ВµF 16V
L5 47ВµH
L2 47ВµH SHUTDOWN C6 SW1
FB1 NFB2 SW4 LT1942 D4 D2 LED1 SW2 LED2 SHDN
CTRL4 AGND LED CONTROL
PGND14
PGND23 SS1 SS4 C7 …

Modellreihe

Serie: LT1942 (2)

LT1942EUF#PBF LT1942EUF#TRPBF

Herstellerklassifikation

Power Management > Switching Regulator > LCD/CCD/OLED Bias
Power Management > Switching Regulator > Step-Up (Boost) Regulators > Internal Power Switch Boost | Multiple Output Boost
Power Management > LED Driver ICs > Step-Up (Boost) LED Drivers
Power Management > PMIC & Multifunction > Multitopology DC/DC

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