IRS27951S

IRS27952(4)S

5

www.irf.com

© 2012 International Rectifier

November 8

Absolute Maximum Ratings

Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage

parameters are absolute voltages referenced to COM, all currents are defined positive into any lead. The thermal

resistance and power dissipation ratings are measured under board mounted and still air conditions.

Symbol

Definition

Min.

Max.

Units

Supply Voltage

-0.3

25

V

High-side Floating Supply Voltage

-0.3

625

High-side Floating Supply Offset Voltage

High-side Floating Output Voltage

Low-side Output Voltage

-0.3

CT/SD Pin Voltage

-0.3

RT Pin Voltage

-0.3

RT pin source current

---

2

mA

Allowable offset voltage slew rate

-50

50

V/ns

Operating Junction Temperature

-40

150

°C

Storage Temperature

-55

150

Package power dissipation @ TA ≤

25°C

(8 lead SOIC)

—

0.833

W

(14 lead SOIC)

—

1.04

Thermal resistance, junction to

ambient

(8 lead SOIC)

—

150

°C/W

(14 lead SOIC)

—

120

Recommended Operating Conditions

For proper operation the device should be used within the recommended conditions.

Symbol

Definition

Min.

Max.

Units

V

BS

High-side floating supply voltage

10

Vcc

V

V

S

Steady-state high-side floating supply offset voltage

-3.0

†

600

V

CC

Supply voltage

12

18

fsw

Switching Frequency

---

500

kHz

†

Care should be taken to avoid output switching conditions where the VS node flies inductively below ground by

more than 5 V.

Recommended Component Values

Symbol

Component

Min.

Max.

Units

RT pin resistor value

2

100

k

Ω

C

CT

CT pin capacitor value

200

2000

pF