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TPS65167 Datasheet(PDF) 29 Page - Texas Instruments

Part # TPS65167
Description  Compact LCD Bias Supply for TFT-LCD TV Panels
PDF  39 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS65167 Datasheet(HTML) 29 Page - Texas Instruments

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TYPICAL APPLICATION
VINB
D1
SL22
L1
10uH
Vin
6Vto 14V
C8
47pF
R2
30kW
R1
365kW
FB
Vs
15V/1.7A
C4
22uF
C7
22uF
C6
22uF
SUPN
AVIN
PGND
REGOUT
COMP
HVS
GDLY
FBB
SWB
POUT
FBP
VGH
DRN
Vlogic
BOOT
R4
300kW
R5
16kW
VGH
24V/50mA
FBN
DRVN
D3
D4
R7
160kW
R8
39kW
C16
2.2uF
R9
2kW
R10
1.2kW
CTRL
VGL
-5V/150mA
Vlogic
3.3V/
2.5A
L2
10uH
12
1
38
9
30
25
27
24
13
11
10
14
37
6
32
33
39
36
35
31
28
20
29
21
22
23
7
2
4
RHVS
SWB
FBLDO
Vaux
1.5V/500mA
40
34
5
8
3
EN
26
C1P
C1N
C2P
C2N
15
16
17
18
19
C1
22uF
C2
1uF
C3
10uF
C11
1uF
C9
0.33uF
C12
22nF
C13
10nF
C14
100nF
C15
0.33uF
0.33uF
C17
470nF
C18
22uF
C20
C21
220nF
C22
1uF
C23
22uF
D2
SL22
C10
1uF
Q2
PZT2907A
R3
82kW
R6
0W
R11
1.6kW
R12
6.8kW
R13
1kW
C5
1uF
C24
10uF
Q1
SI2343
C19
22uF
R14
1kW
C2
1nF
Temperature
Output
CTRL
Signal
C24
1nF
C25
100pF
TPS65167
C25
470nF
TPS65167
TPS65167A
SLVS760B – APRIL 2007 – REVISED OCTOBER 2007
9. Place the feedback resistors of the negative charge pump away from the DRVN trace to minimize coupling
10. Place the flying capacitors as close as possible to the C1P, C1N and C2P, C2N pin.
11. Solder the PowerPad™ of the QFN package to GND and use thermal vias to lower the thermal resistance.
12. A solid PCB ground structure is essential for good device performance.
The power pad is the analog ground connected to the internal reference
Pin 32, 33 are the power grounds for the boost converter Vs
Pin 5 is the power ground for the step-down converter Vlogic and internal digital circuit
Pin 6 is the power ground for the negative charge pump VGL
Pin 14 is the power ground for the positive charge pump POUT
Pin 37 is the analog ground for the internal reference
13. For more layout recommendations, see the TPS65167 evaluation module (EVM)
Figure 30. Typical Application with adjustable step down converter
Copyright © 2007, Texas Instruments Incorporated
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Product Folder Link(s): TPS65167 TPS65167A



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