IR1153S_15 datasheet(4/20 Pages) IRF

Part #	IR1153S

Description	Cycle by cycle peak current limit

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Manufacturer	IRF [International Rectifier]

Direct Link	http://www.irf.com

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IR1153S

www.irf.com

4

Internal Voltage Reference Section

Parameters

Symbol

Min.

Typ.

Max.

Units

Remarks

Reference Voltage

VREF

4.9

5

5.1

V

Regulation Voltage on VFB pin,

TAMB=25°C

Line Regulation

RREG

10

20

mV

14V < VCC < 17V

Temp Stability

TSTAB

0.4

%

-25°C < TAMB < 125°C, Note 1

Total Variation

ΔVTOT

4.83

5.12

V

Line & Temperature

Voltage Error Amplifier Section

Parameters

Symbol

Min.

Typ.

Max.

Units

Remarks

Transconductance

gm

35

49

59

µS

30

44

58

TAMB=25°C

Source Current (Normal

Mode)

IOVEA(SRC)

17

80

µA

-25°C < TAMB < 125°C

-58

-44

-30

TAMB=25°C

Sink Current (Normal Mode)

IOVEA(SNK)

-80

-17

µA

-25°C < TAMB < 125°C

Soft Start Delay Time

(calculated)

tSS

35

msec

RGAIN=8kΩ, CZERO=0.33μF,

CPOLE=2nF

VCOMP Voltage (Fault)

VCOMP FLT

1

1.5

V

@100uA steady state

Effective VCOMP voltage

VCOMP EFF

4.7

4.9

5.1

V

VFB Input Bias Current

IFB(Bias)

-0.2

µA

Output Low Voltage

VOL

0.25

V

Output High Voltage

VOH

5

5.45

V

VCOMP Start Voltage

VCOMP

START

210

325

435

mV

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