IR3721

DATA SHEET

Page 2 of 16

www.irf.com

07/14/08

ABSOLUTE MAXIMUM RATINGS

Absolute Maximum Ratings (Referenced to GND)

VDD:.................................................................3.9V

All other Analog and Digital pins......................3.9V

Operating Junction Temperature .... -10°C to 150°C

Storage Temperature Range .......... -65°C to 150°C

ESD Rating ............HBM Class 2 JEDEC Standard

MSL Rating ..................................................Level 2

Reflow Temperature ..................................... 260°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.

These are stress ratings only and functional operation of the device at these or any other conditions beyond those

indicated in the operational sections of the specifications are not implied. Exposure to absolute maximum rating

conditions for extended periods may affect device reliability.

ELECTRICAL SPECIFICATIONS

Unless otherwise specified, these specifications apply: VDD = 3.3V ± 5%, 0

operation in the typical application circuit. See notes following table.

NOTES:

1.

Guaranteed by design

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNIT

BIAS SUPPLY

3.10

V

2.4

V

VDD UVLO Hysteresis

DI output low when off

75

mV

VDD Operating Current, ICC

350

450

μA

VOLTAGE REFERENCE

1.452

1.493

1.535

V

Note 1

25.5

k

Ω

ΔΣ CONVERTER

Vo common mode range

0.5

1.8

V

Duty Ratio Accuracy

2.5

%

Duty Ratio Accuracy

Note 1

4

%

435

512

589

kHz

Comparator Offset

-0.5

+0.5

mV

DI output low

-250

+250

nA

DIGITAL OUTPUT

VK pin voltage range

0.5

1.8

V

DI source resistance

1250

2000

3000

Ω