TPS65161 TPS65161A, TPS65161B
www.ti.com
SLVS617E – APRIL 2006 – REVISED MARCH 2013
BIAS POWER SUPPLY FOR TV AND MONIT...
TPS65161 TPS65161A, TPS65161B
www.ti.com
SLVS617E – APRIL 2006 – REVISED MARCH 2013
BIAS POWER SUPPLY FOR TV AND MONITOR TFT LCD PANELS
Check for Samples: TPS65161, TPS65161A, TPS65161B
FEATURES
1
2 8-V to 14.7-V Input Voltage Range VS Output Voltage Range up to 19 V TPS65161 has a 2.8-A Switch Current Limit TPS65161A has a 3.7-A Switch Current Limit TPS65161B has a 3.7-A Switch Current Limit
and 100-mA Charge Pump Output Current 1.5% Accurate 2.3-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 Overvoltage Protection Thermal Shutdown Available in HTSSOP-28 Package
APPLICATIONS
TFT LCD Displays for Monitor and LCD TV
DESCRIPTION
The TPS65161 family offers a compact power supply solution to provide all four voltages required by thin-film
transistor (TFT) LCD panels. With their high current capabilities, the devices are ideal for large screen monitor panels and LCD TV applications.
TYPICAL APPLICATION
VIN 12 V
C1 2 * 22 μF
C3 1 μF
VGL −5 V/50 mA
C16 1 μF
D2
C6 0.47 μF
C7 0.47 μF
R3 620 kΩ
D3
R4 150 kΩ
C8 220 nF
C9 22 nF
L1 10 μH
D1 SL22
VS 18 V/1.3 A
TPS65161
8
12
SUP FREQ
20 VINB
21 22
VINB
16 AVIN 9 EN1 EN2 11
13 DRN FBN
24
6 REF
7 PGND
28 PGND
25
SS DLY1
4
SW SW
5
FB 1
OS 3
GND 23
G...