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TPS65165 Datasheet(PDF) 6 Page - Texas Instruments

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Part # TPS65165
Description  Compact LCD Bias IC With High Speed Amplifiers for TV and Monitor TFT-LCD Panels
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS65165 Datasheet(HTML) 6 Page - Texas Instruments

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TPS65165
SLVS723 – DECEMBER 2006
PIN ASSIGNMENT (continued)
TERMINAL FUNCTIONS (continued)
TERMINAL
I/O
DESCRIPTION
NAME
NO.
Logic control input to enable High Voltage Stress Test. With HVS=low the high voltage stress test is disabled.
HVS
17
I
With HVS=high the high voltage stress test is enabled.
Drive pin for the negative charge pump converter generating VGL. Using a single stage charge pump inverts
DRVN
18
I/O
the voltage present at the main boost converter Vs and regulates it down to the desired voltage programmed
by the feedback divider.
SS
20
O
Softstart for the main boost converter generating Vs. Connect a capacitor to this pin to set the softstart time.
FBN
21
I
Feedback of the negative charge pump converter.
Reference output. Connect a 220-nF capacitor directly from REF pin to AGND to minimize possible noise
REF
22
O
coupling into the reference of the IC.
AGND
23
I
Analog Ground , positive and negative charge pump ground.
VIN
24
I
Supply pin for the IC. Bypass this pin with a 1-
µF capacitor directly to GND.
EN
25
I
Enable pin of the IC. EN=high enables the IC. EN= low disables the IC. This pin must be terminated.
PGND
27, 28
Power Ground for the boost converter.
SW
29, 30
I/O
Switch pin of the boost regulator generating Vs
This resistor sets the voltage of the boost converter Vs when the High Voltage Stress test is enabled.
RHVS
32
I
(HVS=high). With HVS=high the RHVS pin is pulled to GND which sets the output voltage for the boost
converter. When HVS is disabled (HVS=low) the RHVS pin is high impedance.
COMP
33
O
Compensation for the regulation loop of the boost converter generating Vs.
FB
34
I
Feedback of the boost converter generating Vs.
VGH
35
O
This is the output voltage of the internal high voltage switch, controlled by the CTRL signal.
DRN
36
I/O
Connect the discharge resistor for the Gate voltage shaping to this pin.
FBP
37
I
This is the feedback for the positive charge pump converter generating VGH
Output of the positive charge pump which is internally connected to the high voltage switch Q2. Connect a
POUT
38
O
1-
µF output capacitor to this pin as well as the feedback divider to set the output voltage for the positive
charge pump respectively for VGH.
Positive terminal of the flying capacitor for the positive charge pump. Typically a 330-nF flying capacitor is
C1P
39
I/O
required.
Negative terminal of the flying capacitor for the positive charge pump. Typically a 330-nF flying capacitor is
C1N
40
I/O
required.
6
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