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6 Pin Configuration and Functions

EN/UVLO

OVLO

SPLYGD/

SPLYGD

ITIMER

ILM

GND

DVDT

FLT/

RCBCTRL

VIN

VOUT

Figure 6-1. YWP Package, 12-Ball PWCSP (Top View)

Table 6-1. Pin Functions

TYPE

DESCRIPTION

NAME

NO.

EN/UVLO

Analog

input

Active high enable for the device. A resistor divider on this pin from input supply to GND

can be used to adjust the undervoltage lockout threshold. Do not leave floating. Refer to

Section 8.3.1 for details.

OVLO

Analog

input

A resistor divider on this pin from supply to GND can be used to adjust the overvoltage

lockout threshold. This pin can also be used as an Aactive low enable for the device. Do

not leave floating. Refer to Section 8.3.2 for details.

SPLYGD

Digital

output

TPS259480x/2x: Active high Supply Good indication. This is an open drain signal which

is asserted high when the input supply is valid and channel has completed inrush

sequence. This can be used to enable/disable the auxiliary supply eFuse to facilitate

smooth switchover in a priority power MUXing configuration. Refer to Section 8.3.8 for

more details.

SPLYGD

Digital

output

TPS259481x: Active low Supply Good indication. This is an open drain signal which

is asserted Low when the input supply is valid and channel has completed inrush

sequence. This can be used to enable/disable the auxiliary supply eFuse to facilitate

smooth switchover in a priority power MUXing configuration. Refer to Section 8.3.8 for

more details.

FLT

Digital

output

TPS259480x: Active low fault event indicator. This is an open drain signal which will be

pulled low when a fault is detected. Refer to Section 8.3.7 for more details.

RCBCTRL

Digital

input

TPS259481x/2x: Active high reverse current blocking enable input. Leave the pin floating

or pull it high to enable reverse current blocking at all times. Pull the pin low to disable

reverse current blocking in steady-state to enable bi-directional current flow.

5, 12

Power

Power input.

OUT

6, 11

Power

Power output.

DVDT

Analog

output

A capacitor from this pin to GND sets the output turn on slew rate. Leave this pin floating

for the fastest turn on slew rate. Refer to Section 8.3.3.1 for details.

GND

Ground This is the ground reference for all internal circuits and must be connected to system GND.

ILM

Analog

output

This is a dual function pin used to limit and monitor the output current. An external resistor

from this pin to GND sets the output current limit threshold during start-up as well as

steady state. The pin voltage can also be used as analog output load current monitor

signal. Do not leave floating. Refer to Section 8.3.3.2 for more details.

ITIMER

Analog

output

A capacitor from this pin to GND sets the overcurrent blanking interval during which the

output current can temporarily exceed set current limit (but lower than fast-trip threshold)

before the device overcurrent response takes action. Leave this pin open for fastest

response to overcurrent events. Refer to Section 8.3.3.2 for more details.

TPS25948

SLVSGT9A – FEBRUARY 2023 – REVISED SEPTEMBER 2023

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