TPS25751AS datasheet(13/85 Pages) TI2

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6.9 PPHV Power Switch Characteristics - TPS25751AD (continued)

Operating under these conditions unless otherwise noted: 3.0V ≤ VLDO_3V3 ≤ 3.6V

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Soft start slew rate for GATE_VSYS,

setting 1

4V ≤ VVBUS ≤ 22V,

ILOAD = 100mA, 500pF

< CGATE_VSYS < 16nF,

measure slope from 10% to

90% of final VSYS value

0.67

0.81

0.95

V/ms

Soft start slew rate for GATE_VSYS,

setting 2

4V ≤ VVBUS ≤ 22V,

ILOAD = 100mA, 500pF

< CGATE_VSYS < 16nF,

measure slope from 10% to

90% of final VSYS value

1.33

1.7

2.0

V/ms

Soft start slew rate for GATE_VSYS,

setting 3

4V ≤ VVBUS ≤ 22V,

ILOAD = 100mA, 500pF

< CGATE_VSYS < 16nF,

measure slope from 10% to

90% of final VSYS value

2.8

3.3

3.80

V/ms

tPPHV_OFF

Time allowed to disable the internal

PPHV switch in normal shutdown

mode

VVBUS = 20V, VPPHV = 20V

(initially), CPPHV< 1nF, IPPHV

= 0.1A, switch is off when

VVBUS_IN – VPPHV > 1V

400

1000

µs

tPPHV_OVP

Time allowed to disable the internal

PPHV switch in fast shutdown mode

(VOVP4RCP exceeded), this includes

the response time of the comparator

OVP: VOVP4RCP = setting

57, VVBUS = 20V

initially, then raised to

23V in 50ns, VPPHV =

VVBUS_IN (initially), CPPHV<

1nF, IPPHV = 0.1 A, switch

is off when VVBUS_IN –

VPPHV > 0.1V

µs

tPPHV_RCP

Time allowed to disable the internal

PPHV switch in fast shutdown mode

(VRCP exceeded), this includes the

response time of the comparator

RCP: VRCP= setting 0,

VVBUS = 5V, VVSYS =

5V initially, then raised

to 6V with dV/dt = 0.1V/

µs, CVBUS=10µF, measure

time from VVSYS > VBUS +

VRCP to the time of peak

voltage on VBUS

µs

tPPHV_FSD

Time allowed to disable the internal

PPHV switch in fast shutdown mode

(OVP)

VPPHV = 20V (initially),

VVBUS=20V then raised to

23V in 50ns, rOVP = 1,

CPPHV < 1nF, IPPHV = 0.1A,

switch is off when VVBUS_IN

– VPPHV > 0.5V

0.25

μs

tPPHV_ON

Time to enable the internal PPHV

switch

VVBUS_IN = 5V, CPPHV =

0, IPPHV = 0, measure

time from register write

to enable PPHV until

VVBUS_IN - VPPHV < 0.1V,

soft start setting 3

1500

1800

2100

μs

6.10 PP_EXT Characteristics - TPS25751AS

Operating under these conditions unless otherwise noted: , 3V ≤ VLDO_3V3 ≤ 3.6V

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

IGATE_ON

Gate driver sourcing current

0V ≤ VGATE_VSYS - VVSYS ≤

6V, VVSYS ≤ 22V, VVBUS >

4V, measure IGATE_VSYS

8.5

11.5

µA

0V ≤ VGATE_VBUS - VVBUS

≤ 6V, 4V ≤ VVBUS ≤ 22V,

measure IGATE_VBUS

8.5

11.5

µA

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TPS25751A

SLVSJG7 – MAY 2026

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