Datenblatt-Suchmaschine für elektronische Bauteile |
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HCPL-7825 Datenblatt(PDF) 1 Page - Agilent(Hewlett-Packard) |
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HCPL-7825 Datenblatt(HTML) 1 Page - Agilent(Hewlett-Packard) |
1 / 15 page 1-233 5965-3591E H High CMR Analog Isolation Amplifiers Technical Data Features • Fast Propagation Delays for Over-Current and Fault Detection Sensing • High Common Mode Rejection (CMR): 30 kV/ µs at VCM = 1000 V* • 3% Gain Tolerance: HCPL-7820 5% Gain Tolerance: HCPL-7825 • 0.05% Nonlinearity • Low Offset Voltage and Off- set Drift vs. Temperature • 200 kHz Bandwidth • Performance Specified for Common Motor Control Applications over -40 °C to 100 °C Temperature Range • Worldwide Safety and Regulatory Approval: UL 1577 (3750 V rms/1 Min), VDE 0884 and CSA • Compact Auto-Insertable Standard 8-Pin DIP Package • Advanced Sigma-Delta ( Σ ∆) A/D Converter Technology • 1 µm CMOS IC Technology Applications • Motor Phase and Rail Current Sensing • General Purpose Current Sensing and Monitoring • High-Voltage Monitoring • Switched Mode Power Supply Signal Isolation • General Purpose Analog Signal Isolation • Transducer Isolation Description The HCPL-7820/7825 high CMR isolation amplifier consists of a sigma-delta analog-to-digital converter optically coupled to an integrated output digital-to-analog converter. When used with a shunt resistor in the current path, the HCPL-7820/7825 provides a cost-effective, auto-insertion compatible current sense solution. Fast propagation delays allow this part to be used in either motor drive or inverter applications for either phase current monitoring or rail current fault detection applications. High isolation mode *The terms common-mode rejection (CMR) and isolation-mode rejection (IMR) are used interchangeably throughout this data sheet. A 0.1 µF bypass capacitor must be connected between pins 1 and 4 and between pins 5 and 8. rejection makes this product suitable for noisy electrical environments, such as those generated by the high switching rates of power IGBTs. Low offset voltage together with low offset change vs. temperature permits accurate use of auto-calibration techniques. Tight gain tolerance with good nonlinearity further provide the characteristics needed to insure highly accurate motor speed control. A high operating temperature range with specified performance parameters allow HCPL-7820 HCPL-7825 CAUTION: It is advised that normal static precautions be taken in handling and assembly of this component to prevent damage and/or degradation which may be induced by ESD. Functional Diagram 1 IDD1 2 3 4 VDD1 VIN+ VIN– GND1 8 IDD2 7 6 5 VDD2 VOUT+ VOUT– GND2 + – + – CMR SHIELD |
Ähnliche Teilenummer - HCPL-7825 |
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Ähnliche Beschreibung - HCPL-7825 |
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