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TPS65185 Datasheet(PDF) 4 Page - Texas Instruments

Part # TPS65185
Description  PMIC for E Ink Vizplex Enabled Electronic Paper Display
Download  61 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS65185 Datasheet(HTML) 4 Page - Texas Instruments

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TPS65185, TPS651851
SLVSAQ8E – FEBRUARY 2011 – REVISED FEBRUARY 2017
www.ti.com
Product Folder Links: TPS65185 TPS651851
Submit Documentation Feedback
Copyright © 2011–2017, Texas Instruments Incorporated
Pin Functions (continued)
PIN
I/O
DESCRIPTION
NAME
NO.
(1)
There will be 0-ns of deglitch for PWRx.
(2)
There will be 62.52-µs of deglitch for VCOM_CTRL.
(3)
There will be 93.75-µs of deglitch for WAKEUP.
PWR_GOOD
23
O
Open-drain power good output pin. Pin is pulled low when one or more rails are disabled or not in
regulation. DCDC1, DCDC2, and VCOM have no effect on this pin.(1)
PWRUP
21
I
Power-up pin. Pull this pin high to power up all output rails.(1)
SCL
17
I
Serial interface (I2C) clock input.
SDA
18
I/O
Serial interface (I2C) data input/output.
TS
47
I
Thermistor input pin. Connect a 10-kΩ NTC thermistor and a 43-kΩ linearization resistor between this
pin and AGND.
V3P3
46
O
Output pin of 3.3-V power switch.
VB
42
I
Feedback pin for boost converter (DCDC1) and supply for VPOS LDO and VDDH charge pump.
VB_SW
40
O
Boost converter switch out (DCDC1).
VCOM
15
O
Filter pin for panel common-voltage driver.
VCOM_CTRL
12
I
VCOM enable. Pull this pin high to enable the VCOM amplifier. When pin is pulled low and VN is
enabled, VCOM discharge is enabled.(2)
VCOM_DIS
14
I
Discharge pin for VCOM. Connect to ground to discharge VCOM to ground whenever VCOM is
disabled. Leave floating if discharge function is not desired.
VCOM_PWR
16
I
Internal supply input pin to VCOM buffer. Connect to the output of DCDC2.
VDDH_D
34
O
Base voltage output pin for positive charge pump (CP1).
VDDH_DIS
35
I
Discharge pin for VDDH. Connect to VDDH to discharge VDDH to ground whenever the rail is
disabled. Leave floating if discharge function is not desired.
VDDH_DRV
36
O
Driver output pin for positive charge pump (CP1).
VDDH_FB
33
I
Feedback pin for positive charge pump (CP1).
VDDH_IN
37
I
Input supply pin for positive charge pump (CP1).
VEE_D
30
O
Base voltage output pin for negative charge pump (CP2).
VEE_DIS
29
I
Discharge pin for VEE. Connect a resistor from VEE _DIS to VEE to discharge VEE to ground
whenever the rail is disabled. Leave floating if discharge function is not desired.
VEE_DRV
28
O
Driver output pin for negative charge pump (CP2).
VEE_FB
31
I
Feedback pin for negative charge pump (CP2).
VEE_IN
27
I
Input supply pin for negative charge pump (CP2) (VEE).
VIN
10
I
Input power supply to general circuitry.
VIN3P3
45
I
Input pin to 3.3-V power switch.
VIN_P
24
I
Input power supply to inverting buck-boost converter (DCDC2).
VN
26
I
Feedback pin for inverting buck-boost converter (DCDC2) and supply for VNEG LDO and VEE charge
pump.
VNEG
3
O
Negative supply output pin for panel source drivers.
VNEG_DIS
9
O
Discharge pin for VNEG. Connect to VNEG to discharge VNEG to ground whenever the rail is
disabled. Leave floating if discharge function is not desired.
VNEG_IN
4
I
Input pin for LDO2 (VNEG).
VN_SW
25
O
Inverting buck-boost converter switch out (DCDC2).
VPOS
44
O
Positive supply output pin for panel source drivers.
VPOS_DIS
19
I
Discharge pin for VPOS. Connect a resistor from VPOS_DIS to VPOS to discharge VPOS to ground
whenever the rail is disabled. Leave floating if discharge function is not desired.
VPOS_IN
43
I
Input pin for LDO1 (VPOS).
VREF
1
O
Filter pin for 2.25-V internal reference to ADC.
WAKEUP
5
I
Wake up pin (active high). Pull this pin high to wake up from sleep mode. IC accepts I2C commands
after WAKEUP pin is pulled high but power rails remain disabled until PWRUP pin is pulled high.(3)
Thermal Pad
The thermal pad is internally connected to the PBKG pin. Connect the thermal pad to the VN pin with a
short, wide trace. A wide copper trace improves heat dissipation. Do not connect the thermal pad to
ground.


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