HCPL-788J Avago Technologies US Inc., HCPL-788J Datasheet
HCPL-788J
Specifications of HCPL-788J
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HCPL-788J Summary of contents
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... OUT 5 V REF HCPL-788J CAUTION 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. Features x Output Voltage Directly Compatible with A/D Converters ( Fast (3 μs) Short Circuit Detection with Transient Fault Rejection x Absolute Value Signal Output for Overload Detection x 1 μ ...
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... HCPL-788J. A larger analog output volt- age is created on the other side of the HCPL-788J’s opti- cal isolation barrier. The output voltage is proportional to the motor current and can be connected directly to a single-supply A/D converter. A digital over-range output (FAULT) and an analog rectifi ...
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... To order, choose a part number from the part number column and combine with the desired option from the option column to form an order entry. Example 1: HCPL-788J-500E to order product of 16-Lead Surface Mount package in Tape and Reel packaging with IEC/EN/DIN EN 60747-5-2 Safety Approval and RoHS compliant. Example 2: HCPL-788J to order product of 16-Lead Surface Mount package in Tube packaging and non RoHS compliant ...
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... MIN. STANDOFF 0.408 ± 0.010 (10.160 ± 0.254) Note: Initial and continued variation in the color of the HCPL- 788J’s white mold compound is normal and does not affect device performance or reliability. Note: Floating lead protrusion is 0.25 mm (10 mils) max. Min. Typ. ...
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Solder Reflow Thermal Profile 300 PREHEATING RATE 3°C + 1°C/–0.5°C/SEC. REFLOW HEATING RATE 2.5°C ± 0.5°C/SEC. 200 160°C 150°C 140°C 3°C + 1°C/–0.5°C 100 PREHEATING TIME 150° SEC. ROOM TEMPERATURE Note: Non-halide flux should ...
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... Regulatory Information The HCPL-788J has been approved by the following organizations: IEC/EN/DIN EN 60747-5-2 Approved under: IEC 60747-5-2:1997 + A1:2002 EN 60747-5-2:2001 + A1:2002 DIN EN 60747-5-2 (VDE 0884 Teil 2):2003-01. IEC/EN/DIN EN 60747-5-2 Insulation Characteristics* Description Installation classification per DIN VDE 0110/1.89, Table 1 for rated mains voltage ≤ 300 V rms for rated mains voltage ≤ ...
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Insulation and Safety Related Specifications Parameter Symbol Minimum External Air Gap L(101) (Clearance) Minimum External Tracking L(102) (Creepage) Minimum Internal Plastic Gap Tracking Resistance CTI Isolation Group Absolute Maximum Ratings Parameter Storage Temperature Operating Temperature Supply Voltages Steady-State Input Voltage ...
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DC Electrical Specifications Unless otherwise noted, all typicals and figures are at the nominal operating conditions and T = 25°C; all Minimum/Maximum specifications are within the Recommended Operating DD1 DD2 ...
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AC Electrical Specifications Unless otherwise noted, all typicals and figures are at the nominal operating conditions and T = 25°C; all Minimum/Maximum specifications are within the Recommended Operating DD1 DD2 ...
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... IN both pins 1 and 2 with respect to pin 8. 12. The signal-to-noise ratio of the HCPL-788J can be improved with the addition of an external low pass filter to the output. See Frequently Asked Question #4.2 in the Applications Information Section at the end of this data sheet. 13. As measured from 50 ...
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TYPICAL 600.0 MAX 400.0 200.0 0 -200.0 -400.0 -600.0 -800.0 -40 - TEMPERATURE – DEG C Figure 3. Input offset voltage change vs. temperature. 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 -300 ...
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TEMPERATURE – °C Figure 12. Bandwidth vs. temperature. 300 300 mV -300 (PIN ...
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... DD1 7 V DD1 8 GND 1 Figure 21. Internal block diagram 4.7 kΩ 14 FAULT 13 ABSVAL 12 V OUT 11 V REF HCPL-788J 0.1 μF 10,15 V DD2 0.1 μ HCPL-788J DECODER V 11 REF V 12 OUT D/A LPF ABSVAL 13 RECTIFIER 14 FAULT V 15 DD2 V 10 DD2 GND 9 2 GND 16 2 ...
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... This single DC signal and a threshold comparator can indicate motor overload conditions be- fore dam age to the motor or drive occur. Figure 22 shows the ABSVAL output when 3 HCPL-788Js are used to mon- itor a sinusoidal 60 Hz current. Figures 23 and 24 show the ABSVAL output when only the 3 phases are monitored, respectively. The HCPL-788J’ ...
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... Although the application cir cuit is relatively simple, a few re c ommendations should be followed to ensure optimal performance. The power supply for the HCPL-788J is most often ob- tained from the same supply used to power the power transistor gate drive circuit dedicated supply is re- quired, in many cases it is possible to add an additional winding on an existing trans former ...
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... C4, and C6) should be located as close as possible to the pins of the HCPL-788J. The bypass capacitors are required because of the high-speed digital nature of the signals inside the HCPL-788J. A 0.01 μF bypass capacitor (C2) is also recommended at the input due to the switched-ca- pacitor nature of the input circuit. The input bypass ca- pacitor also forms part of the anti-aliasing fi ...
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... Smaller sense resistance decreases power dissipation, while larg- er sense resistance can improve circuit accuracy by utiliz- ing the full input range of the HCPL-788J. The first step in selecting a sense resistor is determin- ing how much current the resistor will be sens ing. The ...
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... This allows a single pair of wires or PC board traces to connect the HCPL-788J circuit to the sense resistor. By referencing the input circuit to the neg- ative side of the sense resistor, any load current induced ...
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... Select the sense resistor so that it will have less than 5 V drop when short circuits occur. The only other requirement is to shut down the drive before the sense resistor is damaged or its solder joints melt. This ensures that the input of the HCPL-788J cannot be damaged by sense resistors going open-circuit. ...
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... Yes. Some noise energy exists beyond the 30 kHz bandwidth of the HCPL-788J. An external RC low pass filter can be used to improve the signal to noise ratio. For example, a 680 Ω ...
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... V to pins 10, 11, and 15 and connecting -2 pins 9 and 16 with 0.1 μF bypass capacitors from +2 -2.5 V and from -2 ground. Note that FAULT cannot swing above 2 this case level shifter may be needed. Alternately, a single 5 V supply could be power the HCPL-788J which could drive an op amp configured to subtract 1 ...