IR2172S International Rectifier, IR2172S Datasheet

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IR2172S

Manufacturer Part Number
IR2172S
Description
IC CURRENT SENSE 8SOIC
Manufacturer
International Rectifier
Datasheet

Specifications of IR2172S

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)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Accuracy
-
Sensing Method
-
Other names
*IR2172S

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
IR2172S
Manufacturer:
IQR
Quantity:
5 510
Part Number:
IR2172S
Quantity:
5 510
Part Number:
IR2172S
Manufacturer:
IR
Quantity:
20 000
Part Number:
IR2172STRPBF
Manufacturer:
IR
Quantity:
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Features
Description
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 isolation technol-
ogy is implemented to enable the high bandwidth signal
processing. The output format is discrete PWM to elimi-
nate need for the A/D input interface. The dedicated
overcurrent trip (OC) signal facilitates IGBT short cir-
cuit protection. The OC output pulse can be programmed
by the external resistor and capacitor. The open-drain
outputs make easy for any interface from 3.3V to 15V.
IR2172 is the monolithic current sensing IC designed
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
condition
QBS
allows the boot strap power supply
PWM Output
Overcurrent
G N D
15V
C O M
V C C
P O
O C
IR2172
LINEAR CURRENT SENSING IC
V+
V B
V S
V-
ADVANCE INFORMATION
Packages
Product Summary
Overcurrent trip level
Overcurrent trip
8 Lead SOIC
Gain temp.drift
signal delay
V
OFFSET
I
QBS
V in
f o
Up to 600V
Data Sheet No. PD60176-C
IR2172
+/-260mVmax
20ppm/
1.5usec (typ)
To Motor Phase
40kHz (typ.)
+/-260mV (typ.)
600Vmax
16 Lead SOIC
(wide body)
1mA
8 Lead PDIP
o
C (typ.)

Related parts for IR2172S

IR2172S Summary of contents

Page 1

Features Floating channel up to +600V Monolithic integration Linear current feedback through shunt resistor Direct digital PWM output for easy interface Low I allows the boot strap power supply QBS Independent fast overcurrent trip signal High common mode noise immunity ...

Page 2

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, unless otherwise specified Symbol Definition V Nominal input voltage range before saturation IN IN IN- V Overcurrent trip positive input voltage OC+ V Overcurrent trip negative ...

Page 4

IR2172 AC Electrical Characteristics cont 15V, unless otherwise specified Symbol Definition Proagation delay characteristics tdoc Propagation delay time of OC twoc Low true pulse width of OC Timing Waveforms PO PO Carrier Frequency = ...

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

IR2172 Case Outline - 8 Lead SOIC 6 ADVANCE INFORMATION 8 Lead PDIP (MS-012AA) 01-0021 09 01-3003 01 www.irf.com ...

Page 7

IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105 IR EUROPEAN REGIONAL CENTRE: 439/445 Godstone Rd., Whyteleafe, Surrey CR3 0BL, United Kingdom www.irf.com ADVANCE INFORMATION 16 Lead SOIC (wide body) Data and specifications subject to change ...

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