he SFP200MOD is a shunt-based, automotive rated, precision module capable of measuring currents from mA up to 1500 A continuous. The module incorporates SFP200 IC with the Sendyne SFP 18 μΩ shunt, and achieves an accuracy of better than ±1.0 % (typically ±0.5 %) over the entire operating temperature range of –40 °C to +125 °C.

The module simultaneously measures bi-directional DC current through the shunt and three high voltage channels (800 V nominal, 1000 V / channel max), as well as providing separate charge, discharge and total Coulomb output. The module is fully isolated and capable of attachment onto either the high side or low side of a battery. The module can be powered from a voltage supply rail of nominal +5 V or +5 V to + 53 V. The module automatically compensates for the shunt’s varying resistance relative to temperature.

With the exception of connectors, all components on the module are AEC-Q100 compliant. Communications are achieved via an isolated CAN 2.0B interface (500 kbits/s).
The module is an implementation of the SFP200 IC reference design.

Features

• Achieves better than ±1.0 % (typically ±0.5 %) accuracy for current measurement
• Measures three high-voltage potentials (800 V nominal, 1000 V / channel max)
• Measures currents from mA to 1500 A
• Communications via an isolated CAN2.0B interface (500 kbits/s)
• Automotive temperature range of –40 °C to +125 °C
• Low power consumption
• Isolated front end for “high” or “low” side current sensing and attenuation of system-induced noise
• Utilizes Sendyne’s patented zero offset functionality
• Automatically compensates for the shunt’s varying resistance relative to temperature (Gain Error)
• Built-in calibration for voltage measurements
• Separate charge, discharge, and total Coulomb counters
• All components except connectors are AEC-Q100 compliant
• Implementation of SFP200 IC reference design

Applications

• Electric Vehicles
• Charging Stations