HCPL-7850 Avago Technologies US Inc., HCPL-7850 Datasheet
HCPL-7850
Specifications of HCPL-7850
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HCPL-7850 Summary of contents
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... Hall-effect sensors. The HCPL-7850/7851 consists of a sigma-delta analog-to-digital converter optically coupled to a digital-to-analog converter in a hermetically sealed package ...
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... HCPL-7850/7851 an excellent choice for designing reliable products such as motor controllers and inverters. Common-mode rejection of 8 kV/ s makes the HCPL-7850/ 7851 suitable for noisy electrical environments such as those generated by the high switching rates of power IGBTs. ...
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Outline Drawing ;; ; ; ;; ; ; 9.40 (0.370) 9.91 (0.390) 0.76 (0.030) 1.27 (0.050) 0.51 (0.020) MIN. 2.29 (0.090) 0.51 (0.020) 2.79 (0.110) NOTE: DIMENSIONS IN MILLIMETERS (INCHES Hermetic Optocoupler Options Option Description ...
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... Absolute Maximum Ratings Parameter Storage Temperature Operating Temperature Supply Voltages Steady-State Input Voltage 2 Second Transient Input Voltage Output Voltages Lead Solder Temperature ESD Classification (MIL-STD-883, Method 3015) HCPL-7850/7851 Recommended Operating Conditions Parameter Symbol Supply Voltages V V Input Voltage (See Note Symbol Min ...
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DC Electrical Specifications Over recommended operating conditions (T unless otherwise specified). Group A Parameter Symbol Subgroups Input Offset V 1,2,3 OS Voltage Gain G 2,3 1 200 mV NL 2,3 200 Nonlinearity 1 100 mV NL 2,3 100 Nonlinearity 1 ...
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... An external filter circuit may be easily added to the external post-amplifier to reduce the total RMS output noise. See Applications section for more information. 10. Data sheet value is the amplitude of the transient at the differential output of the HCPL-7850 when fall times (measured at pins 1 and 8) is applied to both V 11. Device considered a two-terminal device: Pins and 4 are shorted together and pins and 8 are shorted together. 12. Commercial parts receive 100% testing at 25˚ ...
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... V DD1 1 2 HCPL-7850 0.1 µ Figure 1. Input Offset Voltage Test Circuit. 2 DD1 DD2 1.5 1.0 0.5 0 -0.5 -60 - 100 140 T – TEMPERATURE – °C A Figure 2. Input Offset Change vs. Temperature +15 V DD2 0.1 µF 8 0.1 µ – 6 AD624CD GAIN = 100 0.1 µF 5 0.47 0.47 µ ...
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... V DD1 1 0.1 µF 404 HCPL-7850 13.2 3 0.01 µF 4 Figure 5. Gain and Nonlinearity Test Circuit. 0. DD1 DD2 0 -0.05 -0.10 -0.15 -0.20 -60 - 100 140 T – TEMPERATURE – °C A Figure 6. Gain Change vs. Temperature +15 V DD2 0.1 µF 8 0.1 µ – AD624CD GAIN = 4 0.1 µ ...
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DD1 200 DD2 100 IN– °C 0.3 A 0.2 0.1 0 -60 - 100 140 T – TEMPERATURE – °C ...
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... HCPL-7850 PULSE GEN Figure 16. Common Mode Rejection Test Circuit. V DD1 1 0.1 µ HCPL-7850 3 0.01 µ IMPEDANCE LESS THAN Figure 18. Propagation Delay, Rise/Fall Time and Bandwidth Test Circuit 150 pF V DD2 +15 V 0.1 µF 8 0.1 µ – MC34081 0.1 µ ...
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DELAY TO 90% 9 DELAY TO 50% RISE/FALL TIME DD1 DD2 IN– 100 mV STEP IN+ 2 ...
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... VOLTAGE CLOCK REGULATOR GENERATOR ISO-AMP ENCODER MODULATOR INPUT Figure 23. HCPL-7850 Block Diagram. POSITIVE FLOATING SUPPLY HV+ GATE DRIVE CIRCUIT U1 78L05 IN C1 0.1 µF MOTOR + – • • • R SENSE • • • HV– Figure 24. Recommended Application Circuit. 12 ISOLATION BOUNDARY LED DRIVE DETECTOR ...
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... Figure 28. Operating Circuit for Burn-In and Steady State Life Tests. 13 the current sensing resistor, or shunt (Rsense), is applied to the input of the HCPL-7850 through an RC anti-aliasing filter (R5, C3). And finally, the differential output of the isolation amplifier is converted to a ground-referenced single-ended output voltage with a simple differential amplifier circuit (U3 and associated components) ...
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... HCPL-7850. Avago Technologies recommends four different shunts which can be used to sense average currents in motor drives and 35 hp ...
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... The offset of the op-amp should be low relative to the output offset of the HCPL-7850, or less than about 5 mV. To maintain overall circuit bandwidth, the post-amplifier circuit should have a bandwidth at least twice the minimum bandwidth of the isolation amplifier, or about 200 kHz ...
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Table 1. Current Shunt Summary Shunt Resistor Part Number LVR-3.05-1% LVR-3.02-1% LVR-3.01-1% LVR-5.005-1% MIL-PRF-38534 Class H and DSCC SMD Test Program Avago Technologies’ Hi-Rel Optocouplers are in compliance with MIL-PRF-38534 Class H. Class H devices are also in compliance with ...