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參數(shù)資料
| 型號： | TPS65185RSLT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | POWER SUPPLY SUPPORT CKT, PQCC48 |
| 封裝： | 6 X 6 MM, 0.4 MM PITCH, 0.9 MM HEIGHT, PLASTIC, VQFN-48 |
| 文件頁數(shù)： | 34/49頁 |
| 文件大小： | 2488K |
| 代理商： | TPS65185RSLT |
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PRODUCTPREVIEW
SLVSAQ8A
– FEBRUARY 2011 – REVISED MAY 2011
TERMINAL
I/O
DESCRIPTION
NAME
NO.
AGND1
8
Analog ground for general analog circuitry
Discharge pin for VNEG. Connect to VNEG to discharge VNEG to ground whenever the
VNEG_DIS
9
O
rail is disabled. Leave floating if discharge function is not desired.
VIN
10
I
Input power supply to general circuitry
N/C
11
Not internally connected
VCOM enable. Pull this pin high to enable the VCOM amplifier. When pin is pulled low
VCOM_CTRL
12
I
and VN is enabled, VCOM discharge is enabled.
N/C
13
Not internally connected
Discharge pin for VCOM. Connect to ground to discharge VCOM to ground whenever
VCOM_DIS
14
I
VCOM is disabled. Leave floating if discharge function is not desired.
VCOM
15
O
Filter pin for panel common-voltage driver
VCOM_PWR
16
I
Internal supply input pin to VCOM buffer. Connect to the output of DCDC2.
SCL
17
I
Serial interface (I2C) clock input
SDA
18
I/O
Serial interface (I2C) data input/output
Discharge pin for VPOS. Connect a resistor from VPOS_DIS to VPOS to discharge
VPOS_DIS
19
I
VPOS to ground whenever the rail is disabled. Leave floating if discharge function is not
desired.
N/C
20
Not internally connected
PWRUP
21
I
Power-up pin. Pull this pin high to power-up all output rails.
Die substrate. Connect to VN (-16 V) with short, wide trace. Wide copper trace will
PBKG
22
improve heat dissipation.
Open drain power good output pin. Pin is pulled low when one or more rails are disabled
PWR_GOOD
23
O
or not in regulation. DCDC1, DCDC2, and VCOM have no effect on this pin.
VIN_P
24
I
Input power supply to inverting buck-boost converter (DCDC2)
VN_SW
25
O
Inverting buck-boost converter switch out (DCDC2)
Feedback pin for inverting buck-boost converter (DCDC2) and supply for VNEG LDO and
VN
26
I
VEE charge pump
VEE_IN
27
I
Input supply pin for negative charge pump (CP2) (VEE)
VEE_DRV
28
O
Driver output pin for negative charge pump (CP2)
Discharge pin for VEE. Connect a resistor from VEE _DIS to VEE to discharge VEE to
VEE_DIS
29
I
ground whenever the rail is disabled. Leave floating if discharge function is not desired.
VEE_D
30
O
Base voltage output pin for negative charge pump (CP2)
VEE_FB
31
I
Feedback pin for negative charge pump (CP2)
PGND2
32
Power ground for CP1 (VDDH) and CP2 (VEE) charge pumps
VDDH_FB
33
I
Feedback pin for positive charge pump (CP1)
VDDH_D
34
O
Base voltage output pin for positive charge pump (CP1)
Discharge pin for VDDH. Connect to VDDH to discharge VDDH to ground whenever the
VDDH_DIS
35
I
rail is disabled. Leave floating if discharge function is not desired.
VDDH_DRV
36
O
Driver output pin for positive charge pump (CP1)
VDDH_IN
37
I
Input supply pin for positive charge pump (CP1)
N/C
38
Not internally connected
N/C
39
Not internally connected
VB_SW
40
O
Boost converter switch out (DCDC1)
PGND1
41
Power ground for DCDC1
Feedback pin for boost converter (DCDC1) and supply for VPOS LDO and VDDH charge
VB
42
I
pump
VPOS_IN
43
I
Input pin for LDO1 (VPOS)
VPOS
44
O
Positive supply output pin for panel source drivers
VIN3P3
45
I
Input pin to 3.3-V power switch
V3P3
46
O
Output pin of 3.3-V power switch
4
Copyright
2011, Texas Instruments Incorporated
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