TPS65160 Datasheet, PDF (1/28 Pages) Texas Instruments – BIAS POWER SUPPLY FOR TV AND MONITOR TFT LCD PANELS

TPS65160, TPS65160A
www.ti.com
SLVS566B – MARCH 2005 – REVISED JULY 2005
BIAS POWER SUPPLY FOR TV AND MONITOR TFT LCD PANELS
FEATURES
• 8-V to 14-V Input Voltage Range
• V_S Output Voltage Range up to 20 V
• 1% Accurate Boost Converter With 2.8-A
Switch Current
• 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
• Gate Drive Signal to Drive External MOSFET
• Internal and Adjustable Soft Start
• Short-Circuit Protection
• 23-V (TPS65160) Overvoltage Protection
• 19.5-V (TPS65160A) Overvoltage Protection
• Thermal Shutdown
• 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.
TYPICAL APPLICATION
V_IN
12 V
C1
2*22 mF
C3
1 mF
VGL
−5 V/50 mA
C16
1 mF
D2
C6
0.47 mF
C7
470 mF
D3
R3
620 kW
R4
150 kW
C8
220 nF
C9
22 nF
L1
10 mH
D1
SL22
V_S
15 V/1.5 A
TPS65160
8
SUP
12 _FREQ
4
SW
SW ⁵
C4
22 pF
R1
680 kW
C2
3* 22 mF
20 _VINB
21 _VINB
FB ¹
OS ³
C15
470 nF
R2
56 kW
D4
22
AVIN
16 _EN1
9 _EN2
GND ²³
GD ²⁷ GD
D5
DRP ¹⁰
C5 0.47 mF
VGH
23 V/50 mA
11 _DRN
13 _FBN
24
6 ^REF
14
FBP
17
Boot
18
SWB
19
R5
1 MW
C13
0.47 mF
PGND
7
PGND
28
25 ^SS
DLY1
NC
FBB ¹⁵
2
COMP
DLY2 ²⁶
Cb
100 nF
R6
56 kW
C17
L2
C10
C11
22 nF
15 mH
V_LOGIC
3.3 V/1.5 A
10 nF
10 nF
D6
SL22
R7
2 kW
C14
10 nF
C12
2*22 mF
R8
1.2 kW
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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2005, Texas Instruments Incorporated