LM25115A datasheet(6/26 Pages) TI

部件名	LM25115A

功能描述	LM25115A Secondary Side Post Regulator/DC-DC Converter with Power-Up/Power-Down Tracking

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制造商	TI [Texas Instruments]

网页	http://www.ti.com

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6 / 26 page

LM25115A

SNVS501B – FEBRUARY 2007 – REVISED APRIL 2013

www.ti.com

ELECTRICAL CHARACTERISTICS

(1) (continued)

Unless otherwise specified, TJ = –40°C to +125°C, VBIAS = 12V, No Load on LO or HO.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

HIGH-SIDE GATE DRIVER

VOLH

HO Low-state Output Voltage

IHO = 100mA

0.15

0.5

V

VOHH

HO High-state Output Voltage

IHO = -100mA, VOHH = VHB –VHO

0.35

0.8

V

HO Rise Time

CLOAD = 1000pF

15

ns

HO High-side Fall Time

CLOAD = 1000pF

12

ns

IOHH

Peak HO Source Current

VHO = 0V

2

A

IOLH

Peak HO Sink Current

VHO = 12V

2.5

A

SWITCHING CHARACTERISITCS

LO Fall to HO Rise Delay

CLOAD = 0

40

ns

HO Fall to LO Rise Delay

CLOAD = 0

50

ns

SYNC Fall to HO Fall Delay

CLOAD = 0

120

ns

SYNC Rise to LO Fall Delay

CLOAD = 0

80

ns

THERMAL SHUTDOWN

TSD

Thermal Shutdown Temp.

150

165

°C

Thermal Shutdown Hysteresis

25

°C

THERMAL RESISTANCE

θJA

Junction to Ambient

PW Package

125

°C/W

θJA

Junction to Ambient

SDA Package

32

°C/W

6

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