IR1153S_15 datasheet(3/20 Pages) IRF

Part #	IR1153S

Description	Cycle by cycle peak current limit

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Manufacturer	IRF [International Rectifier]

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IR1153S

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3

Electrical Characteristics

The electrical characteristics involve the spread of values guaranteed within the specified supply voltage and

junction temperature range TJ from – 25° C to 125°C. Typical values represent the median values, which are

related to 25°C. If not otherwise stated, a supply voltage of VCC =15V is assumed for test condition.

Supply Section

Parameters

Symbol

Min.

Typ.

Max.

Units

Remarks

Supply Voltage Operating

Range

VCC

14

17

V

VCC Turn On Threshold

VCC ON

12.2

13.1

14

V

VCC Turn Off Threshold

(Under Voltage Lock Out)

VCC UVLO

9.4

10.1

10.8

V

VCC Turn On/Off Hysteresis

VCC HYST

2.4

3

3.6

V

7

mA

CLOAD =1nF

8

mA

CLOAD =4.7nF

Operating Current

ICC

3.5

5

mA

OVP Mode, Inactive gate

Start-up Current

ICC START

26

75

µA

VCC=VCC ON - 0.2V

Sleep current

ISLEEP

26

75

µA

Pin OVP/EN=VSLEEP-0.2V

Sleep Mode Threshold

VSLEEP

0.5

0.8

V

Bias on OVP/EN pin

Oscillator Section

Parameters

Symbol

Min.

Typ.

Max.

Units

Remarks

20.2

22.2

24.2

TAMB=25°C

Fixed Oscillator Frequency

fSW

18.3

25

kHz

-25

°C < TAMB < 125°C

Maximum Duty Cycle

DMAX

93

99

%

VCOMP=5V

Minimum Duty Cycle

DMIN

0

%

Pulse Skipping

Protection Section

Parameters

Symbol

Min.

Typ.

Max.

Units

Remarks

Open Loop Protection

(OLP)Threshold

VOLP

17

19

21

%

VREF

Bias on VFB pin

Output Overvoltage

Protection (OVP)

Threshold

VOVP

104

106

108

%

VREF

Bias on OVP/EN pin

Output Overvoltage

Protection Reset Threshold

VOVP(RST)

101

103

105

%

VREF

Bias on OVP/EN pin

OVP Input Bias Current

IOVP(Bias)

-0.2

µA

Brown-out Protection

(BOP) Threshold

VBOP

0.66

0.76

0.86

V

Bias on BOP pin

Brown-out Protection

Enable Threshold

VBOP(EN)

1.46

1.56

1.66

V

Bias on BOP pin

BOP Input Bias Current

IBOP(Bias)

-0.2

µA

Peak Current Limit

Protection ISNS Voltage

Threshold (IPK LIMIT)

VISNS(PK)

-0.58

-0.51

-0.44

V

Bias on ISNS pin

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