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TPS65165 Datasheet Preview

TPS65165 Datasheet

Compact LCD Bias IC

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www.ti.com
TPS65165
SLVS723A – DECEMBER 2006 – REVISED MAY 2007
Compact LCD Bias IC With High Speed Amplifiers for TV and Monitor TFT-LCD Panels
FEATURES
2.5 V to 6.0 V Input Voltage Range
Vs Output Voltage up to 18 V
– 1%-Accurate Boost Converter With 4.5 A
Switch Current
– 600 kHz Fixed Frequency PWM Operation
– Overvoltage Protection
– Adjustable Softstart
Regulated Positive Charge Pump Converter
VGH
Integrated Gate Voltage Shaping of VGH
Regulated Negative Charge-Pump Driver VGL
Adjustable Sequencing for Vs and VGH
3 Integrated High-Speed Operational
Amplifiers
– 50 MHz 3 db Bandwidth
– Slew Rate 45 V/µs
– 215 mA Short Circuit Current
High Voltage Test Mode (HVS)
Thermal Shutdown
40-Pin 5×5-mm QFN Package
APPLICATIONS
LCD Monitor
LCD TV Panel
DESCRIPTION
The TPS65165 is a Compact LCD Bias IC with 3 high-speed operational amplifiers for gamma correction and/or
VCOM supply. The device generates all 3 voltage rails for TFT-LCD displays (Vs, VGL and VGH). The device
incorporates a high-voltage switch that can be controlled by a logic signal from the timing controller (TCON) to
provide the gate-voltage modulation for VGH. If this function is not required, the CTRL pin can be tied high.
Vin
2.5V to 6.0V
L1
10uH
D1
C1 C2 C3
22 mF 22 mF 22 mF
C4
1 mF
C10
1 nF
R3
30 kW
COMP
C2P
C11
330 nF C2N
HVS
CTRL
DRN
R10
1kW
POS1
NEG1
OUT1
C5 C6 C7
22 mF 22 mF 22 mF
Boost Converter
D
S
Positive Charge
Pump
x2 or x3
High Voltage
Switch Control
1
POS2
NEG2
2
3
OUT2
C17 C18 C19
22 nF 22 nF 22 nF
C8 R1
1 mF 470 kW
Vs
15V/1.0A
C9
68 pF
R2
39 kW
FB
RHVS
R4
220 kW
FBP
POUT
C12
330nF
C1P
C1N
C13
1 mF
C14
100 pF
PGND
PGND
VGH
DRVN
FBN
REF
C20
220 nF
C15
330 nF
D2
D3
R7
160 kW
R8
39 kW
R5
300
kW
R6
16 kW
VGH
27.5V/50mA
VGL
-5V/50mA
C16
330 nF
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.
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 © 2006–2007, Texas Instruments Incorporated




etcTI

TPS65165 Datasheet Preview

TPS65165 Datasheet

Compact LCD Bias IC

No Preview Available !

TPS65165
SLVS723A – DECEMBER 2006 – REVISED MAY 2007
www.ti.com
The device also features a high-voltage stress test, where the output voltage of VGH is typically set to 30 V, and
the output voltage of Vs is programmable to any higher voltage. The high-voltage stress test is enabled by
pulling the HVS pin high. Adjustable sequencing is implemented, and can be programmed by selecting the
capacitor values connected to ADLY and GDLY. The device consists of a boost converter to provide the source
voltage Vs operating at a fixed switching frequency of 600 kHz. A fully integrated positive charge pump,
switching automatically between doubler and tripler mode provides an adjustable regulated TFT gate on voltage
VGH. A negative charge pump driver provides adjustable regulated output voltage VGL. To minimize external
components the charge pumps for VGH and VGL operate at a fixed switching frequency of 1.2 MHz. The device
includes safety features like overvoltage protection of the boost converter, short circuit protection of VGH and
VGL as well as thermal shutdown.
ORDERING INFORMATION(1)
TA
–40°C to 85°C
ORDERING
TPS65165RSBR
QFN PACKAGE
RSB
(1) The TPS65165RSBR is available taped and reeled and shipped in quantities of 3000 devices per reel.
PACKAGE MARKING
TPS65165
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted) (1)
Input voltage range VIN(2)
Voltage range at EN, CTRL, HVS
SUP
Voltage on SW
POUT, VGH, DRN
Peak switch current
HBM
ESD rating MM
CDM
Continuous total power dissipation
TJ Operating junction temperature range
TA Operating ambient temperature range
Tstg Storage temperature range
VALUE
UNIT
–0.3 V to 7.0
V
–0.3 V to 7.0
V
22
25 V
32
Internally limited
V
2 kV
200 V
750 V
See Dissipation Rating Table
–40 to 150
°C
–40 to 85
°C
–65 to 150
°C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute–maximum–rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to network ground terminal.
DISSIPATION RATINGS(1)
PACKAGE
40-pin QFN
RθJA
30°C/W
TA < 25°C
POWER RATING
3.3 W
TA = 70°C
POWER RATING
1.8 W
TA = 85°C
POWER RATING
1.3 W
(1) Exposed thermal die is soldered to the PCB using thermal vias. Refer to Texas Instruments Application report (SLUA271) QFN/SON
PCB Attachment.
RECOMMENDED OPERATING CONDITIONS
VIN Input voltage range
TA Operation ambient temperature
TJ Operating junction temperature
MIN NOM MAX UNIT
2.5 6.0 V
–40 85 °C
–40 125 °C
2 Submit Documentation Feedback


Part Number TPS65165
Description Compact LCD Bias IC
Maker etcTI
Total Page 30 Pages
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