TPS53124 datasheet(5/22 Pages) TI

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TPS53124

www.ti.com ..................................................................................................................................................... SLUS825B – FEBRUARY 2008 – REVISED MAY 2008

ELECTRICAL CHARACTERISTICS (continued)

over operating free-air temperature range, , VIN = 12 V, (unless otherwise noted)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

UVLO

Wake up

3.7

4.3

VUV5VFILT V5FILT UVLO threshold

Hysteresis

0.2

0.3

0.4

LOGIC Threshold

VENH

ENx H-level input voltage

EN 1/2

VENL

ENx L-level input voltage

EN 1/2

0.3

Current Sense

ITRIP

TRIP source current

VTRIPx = 0.1 V, TA = 25°C

8.5

11.5

µA

TCITRIP

ITRIP temperature coefficient

On the basis of 25

°C

4000

ppm/

°C

(VTRIPx-GND - VPGNDx-LLx) voltage,VTRIPx-GND = 60

-10

mV, TA = 25°C

VOCL(off)

OCP compensation offset

(VTRIPx-GND - VPGNDx-LLx) voltage, VTRIPx-GND = 60

-15

Current limit threshold setting

VR(trip)

VTRIPx-GND voltage

200

range

Output Undervoltage and Overvoltage Protection

VOVP

Output OVP trip threshold

OVP detect

110%

115%

120%

TOVPDEL

Output OVP prop delay

1.5

µs

UVP detect

65%

70%

75%

VUVP

Output UVP trip threshold

Hysteresis (recovery < 20

µs)

10%

TUVPDEL

Output UVP delay

µs

TUVPEN

Output UVP enable delay

1.2

2.5

Thermal Shutdown

Shutdown temperature(1)

150

TSDN

Thermal shutdown threshold

°C

Hysteresis(1)

(1)

Ensured by design. Not production tested.

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