IR2171 International Rectifier, IR2171 Datasheet
IR2171
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IR2171 Summary of contents
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... Open Drain output Descriptions IR2171 is the linear current sensing IC designed for motor drive applications. It senses the motor phase current through an extenal shunt resistor, converts from analog to digital signal, and transfers the signal to the low side. IR’s proprietary high voltage isolation technology is implemented to enable the high band- width signal processing ...
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... IR2171 Absolute Maximum Ratings Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage param- eters are absolute voltages referenced to COM, all currents are defined positive into any lead. The thermal resistance and power dissipation ratings are measured under board mounted and still air conditions. ...
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... Min. Typ. Max. Units Test Conditions — 40 — 500 — 7 — -10 IR2171 260 (Note µV/ — C 167 %/V max gain error=5% (Note 2) o — ppm µ 600V ...
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... IR2171 Timing Waveforms PO PO Carrier Frequency = Figure 1 Output waveform 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 same time. Since both periods vary in the same direction, computing the ratio between these values at each PWM periods gives consistent measurement of the current feedback over the temperature drift ...
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... IR2171 IR2171 VIN VIN IR21716S 5 ...
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... IR2171 Case Outline 6 ADVANCE INFORMATION 8 Lead SOIC 8 Lead PDIP (MS-012AA) 01-0021 09 01-3003 01 www.irf.com ...
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... IR HONG KONG: Unit 308, #F, New East Ocean Centre, No. 9 Science Museum Road, Tsimshatsui East, Kowloon www.irf.com ADVANCE INFORMATION 16 Lead SOIC (wide body) Data and specifications subject to change without notice. IR2171 01-3014 03 Tel (0) 20 8645 8000 Hong Kong Tel: (852) 2803-7380 6/29/2000 ...