TPS274C65AS datasheet(12/87 Pages) TI

12 / 87 page

7.5 Electrical Characteristics (continued)

VVS = 11 V to 36 V, VVDD = 3.0 V to 5.5 V, TJ = –40°C to 125°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

tRCB_DGL

CHx RCB Fault Deglitch

time

Channel Enabled, RCB enabled

1.2

TABS

Thermal shutdown

160

185

210

°C

TOTW

Thermal shutdown

warning

110

130

150

°C

THYS

Thermal shutdown

hysteresis

°C

Vol_FLT

Fault low-output voltage

IFLT = 2 mA, sink current into the pin

0.4

tRETRY

Retry time

Time from thermal shutdown until switch re-enable.

0.6

tRCB_F

Reverse current

protection comparator

delay

Time from VS – VOUT < 50 mV overdrive to FET

gate off

1.6

2.4

µs

VRCB_F

V(VS) – V(OUT)

threshold for

reverse protection

comparator,

falling

-104

-64

-23

tRCB_comp_r

eset

RCB internal comparator

reset interval

100

VRCB_pu

RCBx FET gate voltage

VRCB_R

V(VS) – V(OUT)

threshold for

reverse protection

comparator,

rising

DIGITAL INPUT PIN CHARACTERISTIC

VIH, DIG

DIG pin Input voltage

high-level

3.0 V ≤ VDD ≤ 5.5 V

0.7 ×

VVDD

VIL, DIG

DIG pin Input voltage

low-level

3.0 V ≤ VDD ≤ 5.5 V

0.3 ×

VVDD

RREG_EN

Internal pullup resistance

for REG_EN pin

MΩ

RDIGx

Internal pulldown resistor

0.7

2.0

MΩ

IIH, DIG

Input current high-level

VDIG = 5 V

µA

DIGITAL OUTPUT PIN CHARACTERISTICS

VOH

Output Logic High

Voltage Drop

READY Pin current = –4 mA

-0.5

VOL_SDO

Output Logic Low Voltage SDO Pin current = –4 mA

0.2

VOL_FLT

Output Logic Low Voltage FLT Pin current = –4 mA

0.4

LED DRIVER CHARACTERISTICS

Vdrop_HL14

LED High Side / Low side

drop Channels 1 and 4

I_LED (average current over 4 phases) = 4 mA, LED

switch current = 16 mA

0.2

Vdrop_HL23

LED High Side / Low side

drop Channels 2 and 3

I_LED (average current over 4 phases) = 4 mA, LED

switch current = 32 mA

0.2

PWM_LED

LED driver PWM

frequency

1000

TPS274C65

SLVSFZ2B – APRIL 2023 – REVISED OCTOBER 2023

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