FRDM33771BTPLEVB

The FRDM33771BTPLEVB Evaluation Board (EVB) features the MC33771B, a 14-channel battery cell controller for automotive and industrial Li-ion battery applications. It supports cell voltage measurement, passive cell balancing, GPIOs, external EEPROM, and fault detection pin report.

The kit is designed to support customer development and evaluation. The device can be connected to NXP 14-cell battery emulator or a customer Li-ion battery module with 7-14 logic cells in series. Up to 15 FRDM3377xBTPLEVB can be connected within a daisy chain. The battery cell information is transferred to the microcontroller unit (MCU) through an isolated differential communication bus using FRDM33664BEVB.

• Features

  Key Features

  • Interface I²C link to an external local EEPROM to store user-defined calibration parameters
  • Isolated fault detection pin report
  • Cell-balancing resistors and integrated drivers
  • Cell sense input with low-pass filter

  Connectivity

  • Daisy chain device connection with Transformer isolation
  • GPIOs configurable as digital I/O, wake up input, convert trigger input, ratiometric analog inputs for external temperature measurement, absolute analog inputs for external voltage measurements and auxiliary current sense input

  Components

  • LED indicator for operation mode