Maxim Integrated MAX11068
The MAX11068 is a programmable, highly integrated, high-voltage, 12-channel, battery-monitoring smart dataacquisition interface. It is optimized for use with batteries used in automotive systems, hybrid electric battery packs, electric cars, and any system that stacks long series strings of secondary metal batteries. This highly integrated battery sensor incorporates a simple state machine and a high-speed I2C bus for SMBusK-laddered serial communication.
| Part No. |
MAX11068 |
| Datasheet |
MAX11068
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| Manufacturer |
 Maxim Integrated |
| Description |
Smart Data-Acquisition Interface |
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GENERAL DESCRIPTION
FEATURES
S 12-Cell Battery Voltage Measurement with Temperature Monitoring Up to 12 Lithium-Ion (Li+), NiMH, or Super-Cap Cells Two Auxiliary Analog Inputs for Temperature Measurement S High-Accuracy I/Os Excellent ±0.25% Voltage-Measurement Accuracy ≤ 5mV Offset Voltage S Integrated 12-Channel Data-Acquisition System 12-Channel High-Voltage Mux to ADC Differential Cell-Voltage Measurement 12-Bit Precision, High-Speed SAR ADC 12 Cell Voltages Measured Within 107µs S Battery-Fault Detection Overvoltage and Undervoltage Digital Threshold Detection Cell Sense Line Open-Circuit Detection High/Low Temperature Digital Threshold Detection S 12 Integrated Cell-Equalization Switches Support Up to 200mA S Integrated 6V to 70V Input Linear Regulator S Integrated 25ppm/NC, 2.5V Precision Reference S Integrated Level-Shifted, I2C-Compliant SMBus Ladder Interface Supports Multiple Devices, Up to 31 SMBus Ladder-Connected ICs Communications Protocol with Autoaddressing Fault-Toler...
