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TPS65912 Datasheet(PDF) 6 Page - Texas Instruments

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Part # TPS65912
Description  PMU for Processor Power
Download  145 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS65912 Datasheet(HTML) 6 Page - Texas Instruments

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TPS659121, TPS659122
SWCS071B – AUGUST 2012 – REVISED APRIL 2015
www.ti.com
3.1
Signal Descriptions
Signal Descriptions for TPS65912x
TERMINAL
TYPE
DESCRIPTION
NAME
ALT NAME
NO.
REFERENCE
Internal reference voltage. Connect a 100-nF capacitor from this pin to
VREF1V25
H3
O
GND. Do not load this pin externally.
AGND
F3, C7
Analog ground connection; connect to PGND on the PCB
DRIVERS / LIGHTING
LEDA/GPIO3
B3
I/O
General-purpose I/O or LED driver output
LEDB/GPIO4
B2
I/O
General-purpose I/O or LED driver output
LEDC/GPIO5
B1
I/O
General-purpose I/O or LED driver output
STEP-DOWN CONVERTERS
Analog supply input for DC-DC converters; must be connected to
VINDCDC_ANA
C8
I
VINDCDC1, VINDCDC2, VINDCDC3 and VINDCDC4
Power input to DCDC1 converter; connect to VINDCDC2, VINDCDC3,
VINDCDC1
H7, J7
I
VINDCDC4 and VINDCDC_ANA
VDCDC1
J4
I
Voltage sense (feedback) input "+" for DCDC1
Voltage sense (feedback) input GND for DCDC1; tie to the GND plane
VDCDC1_GND
H4
I
or to AGND, alternatively tie to the GND-pad of the output capacitor
SW1
H6, J6
O
Switch node of DCDC1; connect output inductor
PGND1
H5, J5
Power GND connection for DCDC1 converter
VCON_PWM
F4
I
PWM period signal for dynamic voltage scaling on DCDC1
VCON_CLK
F5
I
Clock signal for dynamic voltage scaling on DCDC1
Power input to DCDC2 converter; connect to VINDCDC1, VINDCDC3,
VINDCDC2
C9
I
VINDCDC4 and VINDCDC_ANA
VDCDC2
D7
I
Voltage sense (feedback) input for DCDC2
SW2
D9
O
Switch node of DCDC2; connect output inductor
PGND2
E9
Power GND connection for DCDC2 converter
Power input to DCDC3 converter; connect to VINDCDC1, VINDCDC2,
VINDCDC3
C1
I
VINDCDC4 and VINDCDC_ANA
VDCDC3
F2
I
Voltage sense (feedback) input for DCDC3
SW3
D1
O
Switch node of DCDC3; connect output inductor
PGND3
E1
Power GND connection for DCDC3 converter
Power input to DCDC4 converter; connect to VINDCDC1, VINDCDC2,
VINDCDC4
A7, B7
I
VINDCDC3 and VINDCDC_ANA
VDCDC4
A4
I
Voltage sense (feedback) input "+" for DCDC4
Voltage sense (feedback) input GND for DCDC4; tie to the GND plane
VDCDC4_GND
B4
I
or to AGND, alternatively tie to the GND-pad of the output capacitor
SW4
A6, B6
O
Switch node of DCDC4; connect output inductor
PGND4
A5, B5
Power GND connection for DCDC4 converter
LOAD SWITCH
LSI
B8, B9
I
Input of the load switch
LSO
A8, A9
O
Output of the load switch
Load switch enable pin; the status is copied to Bit
EN_LS0
C3
I
[LOADSWITCH:ENABLE0] in state CONFIG
Load switch enable pin; the status is copied to Bit
EN_LS1
C2
I
[LOADSWITCH:ENABLE1] in state CONFIG
6
Terminal Configuration and Functions
Copyright © 2012–2015, Texas Instruments Incorporated
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Product Folder Links: TPS659121 TPS659122


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