TPS40190 datasheet(4/22 Pages) TI

номер детали	TPS40190

подробное описание детали	LOW PIN COUNT SYNCHRONOUS BUCK CONTROLLER

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TPS40190

SLUS658A–JULY 2005–REVISED AUGUST 2005

ELECTRICAL CHARACTERISTICS (continued)

TA = –40°Cto85°C, VVDD=12Vdc,TA =TJ, all parameters at zero power dissipation (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX UNIT

OUTPUT DRIVERS

RHDHI

High-side driver pull-up resistance

VBOOT -VSW = 4.5 V, IHDRV = -100 mA

3

6

RHDLO

High-side driver pull-down resistance

VBOOT -VSW = 4.5 V, IHDRV = 100 mA

1.5

3.0

Ω

RLDHI

Low-side driver pull-up resistance

ILDRV = -100 mA

2.5

5.0

RLDLO

Low-side driver pull-down resistance

ILDRV = 100 mA

0.80

1.50

tHRISE

High-side driver rise time (4)

15

35

tHFALL

High-side driver fall time(4)

10

25

CLOAD = 1 nF

ns

tLRISE

Low-side driver rise time(4)

15

35

tLFALL

Low-side driver fall time(4)

10

25

UVLO

VUVLO

Turn-on voltage

4.10

4.25

4.40

V

UVLOHYST Hysteresis

270

320

370

mV

SHUTDOWN

VIH

High-level input voltage, ENABLE

2.8

V

VIL

Low-level input votlage, ENABLE

0.6

BOOT DIODE

VDFWD

Bootstrap diode forward voltage

IBOOT = 5 mA

0.6

0.8

1.2

V

(4) Ensured by design. Not production tested.

4

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Аналогичное описание - TPS40190

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Texas Instruments	TPS40190	897Kb / 27P	[Old version datasheet] LOW PIN COUNT SYNCHRONOUS BUCK CONTROLLER
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