59PR9875N datasheet(6/49 Pages) IRF

6 / 49 page

IR3448

www.irf.com

August 01, 2013

ELECTRICAL SPECIFICATIONS

RECOMMENDED OPERATING CONDITIONS

SYMBOL

DEFINITION

MIN

MAX

UNITS

PVin

Input Bus Voltage *

1.5

Vin

Supply Voltage

5.0

VCC

Supply Voltage **

4.5

7.5

Boot to SW

Supply Voltage

4.5

7.5

Output Voltage

0.6

0.86 * PVin

Output Current

±16

Switching Frequency

300

1500

kHz

Junction Temperature

-40

125

°C

SW node must not exceed 25V

When VCC is connected to an externally regulated supply, also connect Vin.

ELECTRICAL CHARACTERISTICS

Unless otherwise specified, these specification apply over, 1.5V < PVin < 21V, 4.5V< VCC < 7.5V, 0

oC < T

J <

125

oC.

Typical values are specified at TA = 25

oC.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNIT

Power Loss

PLOSS

Vin = PVin = 12V, VO = 1.2V,

IO = 16A, Fs = 600kHz,

L=0.400uH, TA = 25°C, Note 4

1.94

MOSFET Rds(on)

Top Switch

Rds(on)_Top

VBoot – VSW = 6.8V, ID = 16A, Tj

= 25°C

6.6

8.5

mΩ

Bottom Switch

Rds(on)_Bot

VCC =6.8V, ID = 16A, Tj = 25°C

2.2

2.9

Reference Voltage

Feedback Voltage

VFB

0.6

Accuracy

0°C < Tj < 105°C

-0.5

+0.5

-40°C < Tj < 125°C

-1

Supply Current

Vin Supply Current

(Standby)

Iin(Standby)

Vin=21V, Enable low, No

Switching

300

425

µA

Vin Supply Current (Dyn)

Iin(Dyn)

Vin=21V, Enable high, Fs =

600kHz

VCC Supply Current

(Standby)

Icc(Standby)

Enable low, VCC=7V, No

Switching

300

425

µA

VCC Supply Current

(Dyn)

Icc(Dyn)

Enable high, VCC=7V, Fs =

600kHz

Under Voltage Lockout

VCC–Start–Threshold

VCC_UVLO_Start

VCC Rising Trip Level

4.0

4.2

4.4

VCC–Stop–Threshold

VCC_UVLO_Stop

VCC Falling Trip Level

3.8

3.9

4.2

59PR9875N Datasheet(PDF) 6 Page - International Rectifier

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