Datasheet

NXP Semiconductors

FRDM33771BTPLEVB

Featuring the MC33771B battery cell controller IC

User guide Rev. 1.0 — 28 June 2018

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applications. The device performs ADC conversion on the differential cell voltages and

currents. It is also capable of battery charge coulomb counting and battery temperature

measurements. The FRDM33771BTPLEVB is an ideal platform for rapid prototyping of

MC33771B-based applications that involve current, voltage, and temperature sensing.

The FRDM33771BTPLEVB includes a transformer enabling communication in a high-

speed isolated communication network. The information is digitally transmitted to a

microcontroller for processing. The evaluation board can be used in conjunction with a

transceiver physical layer transformer driver (MC33664) to convert MCU SPI data bits to

pulse bit information for the MC33771B and vice versa.

4.2 Board features

This FRDM33771BTPLEVB's main features are as follows:

• Daisy chain device connection

• LED indicator for operation mode

• Cell-balancing resistors

• Transformer isolation

• Cell sense input with RC filter

• GPIO: digital I/O, wake-up inputs, convert trigger inputs, ratiometric analog inputs,

analog inputs with absolute measurements

• EEPROM (connected to the IC with I

C interface) to store user-defined calibration

parameters

• Fault detection pin report