IR2172SPBF International Rectifier, IR2172SPBF Datasheet

IC CURRENT SENSE 8SOIC

IR2172SPBF

Manufacturer Part Number
IR2172SPBF
Description
IC CURRENT SENSE 8SOIC
Manufacturer
International Rectifier
Datasheets

Specifications of IR2172SPBF

Function
Current Sense
Voltage - Input
9.5 ~ 20 V
Current - Output
20mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Quiescent Current
1mA
Bandwidth
15kHz
Sensor Case Style
SOIC
No. Of Pins
8
Supply Voltage Range
9.5V To 20V
Operating Temperature Range
-40°C To +125°C
Device Type
High Side
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Accuracy
-
Sensing Method
-
Lead Free Status / Rohs Status
Compliant
Other names
*IR2172SPBF
Features
Description
IR2171/IR2172 are monolithic current sensing IC
designed for motor drive applications. It senses the
motor phase current through an external shunt resistor,
converts from analog to digital signal, and transfers the
signal to the low side. IR’s proprietary high voltage iso-
lation technology is implemented to enable the high
bandwidth signal processing. The output format is dis-
crete PWM to eliminate need for the A/D input interface
for the IR2172. The dedicated overcurrent trip (OC) sig-
nal facilitates IGBT short circuit protection. The open-
drain outputs make easy for any interface from 3.3V to
15V.
Block Diagram
Floating channel up to +600V
Monolithic integration
Linear current feedback through shunt resistor
Direct digital PWM output for easy interface
Low I
Independent fast overcurrent trip signal
High common mode noise immunity
Input overvoltage protection for IGBT short circuit
Open Drain outputs
PWM Output
Overcurrent
condition
QBS
GND
15V
allows the boot strap power supply
NC (OC 2172)
VCC
COM
PO
IR2171/
IMPORTANT NOTICE:
For new designs we recommend IR’s new products
IR2175, IR2177, IR21771, IR2277 or IR22771.
IR2172
VB
VS
V+
V-
LINEAR CURRENT SENSING IC
Product Summary
Packages
Overcurrent trip level
signal delay (IR2172)
Overcurrent trip
Gain temp.drift
V OFFSET
8-Lead SOIC
I QBS
V in
f o
Up to 600V
(Refer to Lead Assignments for correct pin
configuration). This/These diagram(s)
show electrical connections only. Please
refer to our Application Notes and
DesignTips for proper circuit board layout.
Data Sheet No. PD60192 revG
IR2171/IR2172 ( S )
20ppm/ o C (typ.)
+/-260mV (typ.)
+/-260mVmax
1.5usec (typ)
8-Lead PDIP
To Motor Phase
40kHz (typ.)
600Vmax
1mA

Related parts for IR2172SPBF

IR2172SPBF Summary of contents

Page 1

IMPORTANT NOTICE: For new designs we recommend IR’s new products IR2175, IR2177, IR21771, IR2277 or IR22771. Features Floating channel up to +600V Monolithic integration Linear current feedback through shunt resistor Direct digital PWM output for easy interface Low I allows ...

Page 2

IR2171/IR2172 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 ...

Page 3

DC Electrical Characteristics 15V, and unless otherwise specified Symbol Definition V Nominal input voltage range before saturation IN IN IN- V Overcurrent trip positive ...

Page 4

IR2171/IR2172 Timing Waveforms PO PO +260mV Vin -260mV OC Application Hint: Temperature drift of the output carrier frequency can be cancelled by measuring both a PWM period and the on-time of PWM (Duty) at the same time. Since both periods ...

Page 5

Lead Definitions Symbol Description V Low side and logic supply voltage CC COM Low side logic ground V Positive sense input IN+ V Negative sense input IN- V High side supply B V High side return S PO Digital PWM ...

Page 6

IR2171/IR2172 Case outlines 0.25 [.010 0.25 [.010 NOTES: 1. DIMENSIONING & TOLERANCING PER ASME Y14.5M-1994. 2. ...

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