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LP8545 Datenblatt(PDF) 2 Page - Texas Instruments

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Teilenummer LP8545
Bauteilbeschribung  High-Efficiency LED Backlight Driver for Notebooks
PDF  44 Pages
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Hersteller  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LP8545 Datenblatt(HTML) 2 Page - Texas Instruments

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MCU
LP8545
SW
FB
VLDO
GNDs
EN
ISET
VDDIO
PWM
SCLK
SDA
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
L1
D1
2.7V ± 22V
FILTER
+5V input rail
FSET
15 éH
VSYNC
COUT
CIN
10 éF
4.7 éF
CVLDO
1 éF
VDDIO reference voltage
VSYNC signal
120 k
#
100 nF
RISET
1 éF
FAULT
Can be left floating
if not used
GD
39 pF
VIN
RFSET
VBATT 5.5V ± 22V
10V ± 40V, 180 mA ± 400 mA
10V ± 25V, 180 mA
MCU
LP8545
SW
FB
VLDO
GNDs
EN
ISET
VDDIO
PWM
SCLK
SDA
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
L1
D1
5.5V ± 22V
FILTER
5V
FSET
15 éH
VSYNC
10V ± 40V, 180 mA ± 400 mA
COUT
CIN
10 éF
4.7 éF
CVLDO
1 éF
VDDIO reference voltage
VSYNC signal
120 k
#
100 nF
1 éF
FAULT
Can be left floating
if not used
GD
39 pF
VIN
RISET
RFSET
VBATT
LP8545
SNVS635D – APRIL 2010 – REVISED DECEMBER 2013
www.ti.com
Typical Application (1)
Typical Application for Low Input Voltage (2)
Note: Separate 5V rail to VLDO can be also used to improve efficiency for applications with higher battery voltage. No
power sequencing requirements between VIN/VLDO and VBATT.
2
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Copyright © 2010–2013, Texas Instruments Incorporated
Product Folder Links: LP8545



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