The new ZSSC1750 and ZSSC1751 from ZMDI are fully automotive qualified, high-precision data acquisition system basis chips (SBCs).
The devices include two high-precision, high-resolution analog to digital converters (ADCs) for simultaneous measurement of battery voltage and current as well as internal and external temperatures. In addition, they provide several power-saving operating modes, including an autonomous periodic wake up from sleep mode that can run entirely self-contained.
Once a fault condition such as exceeding a predefined current, voltage or temperature threshold occurs, these ICs will automatically wake up and alert a higher-level controller. They are both controlled via an SPI interface, and the ZSSC1750 provides an additional communication option using a physical LIN interface.
The two synchronous ADCs, combined with a wide-range programmable gain amplifier, allow complex battery management tasks at currents ranging from milliamperes to kiloamperes.
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