FRDM33771BSPIEVB Evaluation Board for MC33771 with SPI Communication

The FRDM33771BSPIEVB Evaluation Board (EVB) features the MC33771, 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. The battery cell information is transferred to the microcontroller unit (MCU) through SPI interface.

Supported Devices

Power Management

Battery Cell Controllers

• MC33771B: 14-Channel Li-Ion Battery Cell Controller IC

Features

Key Features

• SPI interface
• LED indicator for the operation mode
• Cell-balancing resistors and integrated drivers
• Cell sense input with Low Pass filter
• 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
• Interface I²C link to an external local EEPROM to store user-defined calibration parameters
• Fault detection pin report