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IR2172
(Rev.:2000)

LINEAR CURRENT SENSING IC

International Rectifier 

ADVANCE INFORMATION

IR2172

DC Electrical Characteristics

VCC = VBS = 15V, unless otherwise specified.

Symbol

VIN

VOC+

VOC-

VOS

∆VOS/∆TA

G

Definition

Nominal input voltage range before saturation

|VIN+ _ VIN-|

Overcurrent trip positive input voltage

Overcurrent trip negative input voltage

Input offset voltage

Input offset voltage temperature drift

Gain (duty cycle % per VIN)

∆G/∆TA

ILK

IQBS

IQCC

LIN

∆VLIN/∆TA

IOPO

Gain temperature drift

Offset supply leakage current

Quiescent VBS supply current

Quiescent VCC supply current

Linearity (duty cycle deviation from ideal linearity

curve)

Linearity temperature drift

Digital PWM output sink current

IOCC

OC output sink current

Min. Typ. Max. Units Test Conditions

-260 — 260

— 260 — mV

— -260 —

-10

0

10

VIN = 0V (Note 1)

—

25

— µV/oC

157 162 167 %/V max gain error=5%

—

20

— ppm/oC

(Note 2)

—

—

50 µA

VB = VS = 600V

—

1

2

mA

—

—

1

VS = 0V

— 0.5 1

%

— .005 — %/oC

20

—

—

2

——

mA

10

—

—

1

——

VO = 1V

VO = 0.1V

VO = 1V

VO = 0.1V

Note 1: ±10mV offset represents ±1.5% duty cycle fluctuation

Note 2: Gain = (full range of duty cycle in %) / (full input voltage range).

AC Electrical Characteristics

VCC = VBS = 15V, unless otherwise specified.

Symbol

Definition

Propagation delay characteristics

fo

Carrier frequency output

∆f/∆TA

Dmin

Temperature drift of carrier frequency

Minimum duty

Dmax Maximum duty

BW

fo bandwidth

PHS

Phase shift at 1kHz

www.irf.com

Min. Typ. Max. Units Test Conditions

—

40 — kHz

figure 1

—

500 — ppm/oC VIN = 0 & 5V

—

7

—

% VIN+=-260mV,VIN-=0V

—

93 —

% VIN+=+260mV,VIN-=0V

15

kHz VIN+ = 100mVpk -pk

sine wave, gain=-3dB

-10

o VIN+ =100mVpk-pk

sine wave

3

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