2

Rev.1.1

06/16/05

IR3637SPBF

www.irf.com

ABSOLUTE MAXIMUM RATINGS

Vcc Supply Voltage ................................................

16V

Vc Supply Voltage ..................................................

25V

Storage Temperature Range .....................................

-65°C To 150°C

Operating Junction Temperature Range .....................

0°C To 125°C

ESD Classification

.................................................

HMB Class 2 (2KV) JEDEC Standard

Moisture Sensitivity Level ........................................

JEDEC Level 1 @ 260°C

PARAMETER

SYM

TEST CONDITION

MIN

TYP

MAX

UNITS

Feedback Voltage

Fb Voltage

Fb Voltage Line Regulation

UVLO

UVLO Threshold - Vcc

UVLO Hysteresis - Vcc

UVLO Threshold - Vc

UVLO Hysteresis - Vc

UVLO Threshold - Fb

Supply Current

Vcc Dynamic Supply Current

Vc Dynamic Supply Current

Vcc Static Supply Current

Vc Static Supply Current

Soft-Start Section

Charge Current

Shutdown Threshold

25°C<Tj<75°C

0°C<Tj<125°C

4.5<Vcc<5.5

Supply Ramping Up

Supply Ramping Up

Fb Ramping Down

SS=0V

SS=0V

SS=0V

Note1

0.792

0.789

4.0

3.1

0.3

4

6

1

0.5

-15

0.800

0.800

4.2

0.25

3.3

0.2

0.4

8

15

3.3

1

-25

0.808

0.811

0.1

4.4

3.5

0.5

16

20

6

4.7

-35

0.4

V

V

%

V

V

V

V

V

mA

mA

mA

mA

µA

V

UVLO Vcc

UVLO Vc

UVLO Fb

Dyn Icc

Dyn Ic

SD

Fb

Vcc

LDrv

Gnd

HDrv

Vc

Comp

SS/SD

4

3

2

1

5

6

7

8

ELECTRICAL SPECIFICATIONS

Unless otherwise specified, these specifications apply over Vcc=5V, Vc=12V and 0°C<Tj<125°C.

PACKAGE INFORMATION

Recommended Operating Conditions

Parameter

Min

Max

Units

Vcc

4.5

5.5

V

Vc

8

14

V

ratings only and function of the device at these or any other conditions beyond those indicated in the operational sections of the specifica-

tions is not implied. Exposure to “Absolute Maximum Rating” conditions for extended periods may affect device reliability

Note1: Guaranteed by design. Not production tested.