TPS274C65ASH datasheet(13/90 Pages) TI1

13 / 90 page

6.5 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

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

fPWM_LED

LED driver PWM

frequency

1000

6.6 Switching Characteristics

VS = 6 V to 36 V, TJ = –40°C to +125°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

tDR

CHx Turnon delay time

VS = 24 V, RL = 48 Ω 50% of EN to

10% of VOUT

µs

tDF

CHx Turnoff delay time

VS = 24 V, RL = 48 Ω 50% of EN to

90% of VOUT

µs

SR2R

VOUTx rising slew rate

VS = 24 V, 25% to 75% of VOUT,

RL = 48 Ω,

1.6

2.2

V/µs

SR2F

VOUTx falling slew rate

VS = 24 V, 75% to 25% of VOUT,

RL = 48 Ω,

1.4

1.8

V/µs

fmax

Maximum PWM frequency

kHz

tON

CHx Turnon time

VS = 24 V, RL = 48 Ω 50% of EN to

90% of VOUT

µs

tOFF

CHx Turnoff time

VS = 24 V, RL = 48 Ω 50% of EN to

10% of VOUT

µs

tON - tOFF

CHx Turnon and off matching

1ms ON time switch enable

pulse VBB = 24 V, RL = 48 Ω

–41

–7

µs

tON - tOFF

CHx Turnon and off matching

100-µs OFF time switch enable

pulse, VS = 24 V, RL = 48 Ω, F = fmax

–41

–7

µs

tON - tOFF

CHxTurnon and off matching

100-µs ON time switch enable

pulse, VS = 24 V, RL = 48 Ω, F = fmax

–41

–7

µs

ΔPWM

CHx PWM accuracy - average load

current

200-µs enable pulse, VS = 24 V, RL =

48 Ω

F = fmax

–20

www.ti.com

TPS274C65

SLVSFZ2C – APRIL 2023 – REVISED FEBRUARY 2024

Submit Document Feedback

Product Folder Links: TPS274C65

TPS274C65ASH Datasheet(PDF) 13 Page - Texas Instruments

TPS274C65ASH Datasheet(HTML) 13 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90

Datasheet Download

Link URL