CH704 AEC-Q100 Qualified, 200A Hall Current Sensor IC with 4800V-RMS Reinforced Isolation
●The device consists of a precise, low-offset, linear Hall sensor circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper conduction path generates a magnetic field which is sensed by the integrated Hall IC and converted into a proportional voltage. A precise, proportional voltage is provided by the low-offset, chopper-stabilized Hall IC, which is programmed for accuracy after packaging. The output of the device has a positive slope when an increasing current flow through the primary copper conduction path, which is the path used for current sensing.
●The terminals of the conductive path are electrically isolated from the sensor leads. This allows the CH704 current sensor IC to be used in high-side current sense applications without the use of high-side differential amplifiers or other costly isolation techniques.
●The lead-frame is plated with 100% matte tin, which is compatible with standard lead (Pb) free printed circuit board assembly processes. Internally, the device is Pb-free, except for flip-chip high-temperature Pb-based solder balls, currently exempt from RoHS. The device is fully calibrated prior to shipment from the factory.
■Features:
●Reinforced isolation: 4800V-RMS
●AEC-Q100 qualified (CH704A)
●Single supply: 4.5-5.5V
●Output voltage proportional to AC current: +/-50A, +/-100A, +/-150A, +/-200A
●Bandwidth: 180 kHz
●Response time: < 2µs
●Wide temperature range: -40℃ to 150℃
●High resolution offset and sensitivity trimming with EEPROM
●Primary conductor resistance: 0.1 mΩ
●Integrated protections
◆Under-voltage protection
◆Output voltage clamp provides short circuit diagnostic
◆Output spiking suppress during fast current step inputs
●Factory programmed sensitivity and quiescent output voltage TC
●Integrated digital temperature compensation circuitry
●Nearly zero magnetic hysteresis
●Ratio-metric output from supply voltage
●Immunity to external magnetic field
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CH704 、 CH704A 、 CH704XXXXCT 、 CH7xx 、 CH704050CT 、 CH704100CT 、 CH704150CT 、 CH704200CT 、 CH704050ACT 、 CH704100ACT 、 CH704150ACT 、 CH704200ACT 、 CH704200 、 CH704150 、 CH704100 、 CH704050 |
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Datasheet |
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Please see the document for details |
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CFF;CFF-5 |
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English Chinese Chinese and English Japanese |
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3 March 2022 |
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Revision 1.2 |
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1.3 MB |
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