TPS65160
www.ti.com
SLVS566A–MARCH 2005–REVISED MAY 2005
BIAS POWER SUPPLY FOR TV AND MONITOR TFT LCD PANELS
FEATURES
•
•
•
•
•
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Gate Drive Signal to Drive External MOSFET
Internal and Adjustable Soft Start
Short Circuit Protection
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•
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8-V to 14-V Input Voltage Range
VS Output Voltage Range up to 20 V
1% Accurate Boost Converter With 2.8-A
Switch Current
Overvoltage protection
Thermal Shutdown
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1.5% accurate 1.8-A Step-Down Converter
500 kHz/750 kHz Fixed Switching Frequency
Negative Charge Pump Driver for VGL
Positive Charge Pump Driver for VGH
Adjustable Sequencing for VGL, VGH
Available in TSSOP-28 Package
APPLICATIONS
•
TFT LCD Displays for Monitor and LCD TV
DESCRIPTION
The TPS65160 offers a compact power supply solution to provide all four voltages required by thin film transistor
(TFT) LCD panel. With its high current capabilities, the device is ideal for large screen monitor panels and LCD
TV applications. The device can be powered directly from a 12-V input voltage generating the bias voltages VGH
and VGL, as well as the source voltage VS and logic voltage for the LCD panels.
TYPICAL APPLICATION
D1
SL22
Vs
15 V/1.5 A
L1
10 mH
Vin
12 V
C1
R1
2*22 m F
C4
C3
TPS65160
680 k
W
22 pF
C2
3* 22 mF
1
m
F
8
4
SW
SW
FB
SUP
5
12
20
21
22
FREQ
VINB
VINB
R2
56 k
1
C15
470 nF
W
D4
3
OS
GND
GD
23
27
AVIN
EN1
EN2
DRN
FBN
C16
m F
VGH
23 V/50 mA
16
9
1
D5
GD
C6
VGL
0.47 mF
10
14
17
18
19
15
2
C5
DRP
FBP
Boot
D2
0.47 mF
−5 V/50 mA
11
13
R5
1 M
C13
0.47 m F
D3
W
24
6
SWB
NC
FBB
REF
R3
620 k
C7
470 m F
W
PGND
7
28
25
PGND
SS
DLY1
Cb
100 nF
R6
56 k
COMP
DLY2
W
R4
150 k
26
W
Vlogic
3.3 V/1.5 A
L2
15 m H
C17
22 nF
C10
10 nF
C11
10 nF
C9
22 nF
C8
220 nF
D6
SL22
R7
2 k
C12
2*22 m F
W
C14
10 nF
R8
1.2 k
W
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2005, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.