Product Summary
The MAX471CSA is a complete, bidirectional, highside current-sense amplifier for portable PCs, telephones, and other systems where battery/DC power-line monitoring is critical. High-side power-line monitoring is especially useful in battery-powered systems, since the MAX471CSA does not interfere with the ground paths of the battery chargers or monitors often found in “smart” batteries. The applications of the MAX471CSA include Portable PCs: Notebooks/Sub-notebooks/Palmtops, Smart Battery Packs, Cellular Phones, Portable Phones, Portable Test/Measurement Systems, Battery-Operated Systems, and Energy Management Systems.
Parametrics
MAX471CSA absolute maximum ratings: (1)Supply Voltage, RS+, RS-, VCC to GND: -0.3V, +40V; (2)RMS Current, RS+ to RS- (MAX471 only): ±3.3A; (3)Peak Current, (RS+ to RS-): see Figure 5; (4)Differential Input Voltage, RG1 to RG2 (MAX472 only): ±0.3V; (5)Voltage at Any Pin Except SIGN: -0.3V to (RS+ - 0.3V); (6)Voltage at SIGN: -0.3V to +40V; (7)Current into SHDN, GND, OUT, RG1, RG2, VCC: ±50mA; (8)Current into SIGN: +10mA, -50mA; (9)Continuous Power Dissipation (TA = +70℃): 791mW; (10)Operating Temperature Ranges: 0℃ to +70℃; (11)Junction Temperature Range: -60℃ to +150℃; (12)Storage Temperature Range: -60℃ to +160℃; (13)Lead Temperature (soldering, 10sec): +300℃.
Features
MAX471CSA features: (1)Complete High-Side Current Sensing; (2)Precision Internal Sense Resistor (MAX471); (3)2% Accuracy Over Temperature; (4)Monitors Both Charge and Discharge; (5)3A Sense Capability with Internal Sense Resistor (MAX471); (6)Higher Current-Sense Capability with External Sense Resistor (MAX472); (7)100μA Max Supply Current; (8)18μA Max Shutdown Mode; (9)3V to 36V Supply Operation; (10)8-Pin DIP/SO Packages.
Diagrams
Image | Part No | Mfg | Description | Pricing (USD) |
Quantity | |||||
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MAX471CSA |
Maxim Integrated Products |
Special Purpose Amplifiers |
Data Sheet |
Negotiable |
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MAX471CSA-T |
Maxim Integrated Products |
Special Purpose Amplifiers |
Data Sheet |
Negotiable |
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MAX471CSA+T |
Maxim Integrated Products |
Special Purpose Amplifiers |
Data Sheet |
Negotiable |
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MAX471CSA+ |
Maxim Integrated Products |
Special Purpose Amplifiers |
Data Sheet |
Negotiable |
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