PIFE32251B-R68MS datasheet(12/157 Pages) TI1

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TPS650830

SLVSCF4A – DECEMBER 2014 – REVISED JULY 2016

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Pin Configuration and Functions

Table 4-1. Pin Functions (continued)

I/O

TYPE(1)

DESCRIPTION

NAME

ZAJ

PACKAGE

NUMBER

ZCG

PACKAGE

NUMBER

VDDIO

E1, M13

F1, P16

Voltage supply input for I/O buffers. VDDIO should be tied to LDO3V

(3.3 V)

VDDLV

N10

LVx buffer supply, sets output level for Level Shifter pins

VDDPG

PGx supply, sets output level for PG pins for A-H, if PG pin is push-

pull

VDD5 VPROGOTP

Always connect to LDO5V. supply voltage for OTP programming

(must be connected to LDO5V in normal operation)

VIN

IC input voltage

VINLDO1

A6, B6

A7, B7

LDO1 Input supply

VINLDO3

R10

LDO3V input supply

VINLDO1S

LDO1 Input voltage reference sense (Connect to vout of VR4 at

output load capacitor)

VINPP

VIN for Power Path Domain. Connect to external diode OR from: AC,

BAT1, BAT2.

VINVR2

F12, F13

H15, H16

VR2 Power Input voltage. Connect to a 3.3-V voltage regulator, such

as V3.3A_DSW .

VINVR3

H11

VR3 Input voltage sense and high-side current-sense (Kelvin connect

to drain of high-side FET)

VINVR5

VR5 Input voltage sense and high-side current-sense (Kelvin connect

to drain of high-side FET)

VIN5VSW

Internal load switch from 5-V switching regulator to LDO5Voutput.

Connect VIN5VSW to 5-V switching regulator output.

VOUTLDO1

A8, B8

A9, B9

LDO1 Output voltage, VOUTLDO1 = (1/2 * VINLDO1SNS)

VOUT3V3SW

EC domain load switch output and discharge path from LDO3V

VREF1V25

Decoupling cap connection for internal voltage reference

VREGVR1

M10

R12

5-V drive supply input (shorted on board with LDO5V), supply for VR1

and VR5

VREGVR2

E13

G16

VR2 5-V drive supply input (shorted on board with LDO5V)

VREGVR4

VR4 5-V drive supply input (shorted on board with LDO5V), shared

with VR3

VSA