Bq76942 Evm Quick Start Guide; Before You Begin; Quick Start - Texas Instruments BQ76942EVM User Manual

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BQ76942 EVM Quick Start Guide

2 BQ76942 EVM Quick Start Guide

The following warnings and cautions are noted for the safety of anyone using or working close to the BQ76942

EVM. Observe all safety precautions.

The default settings of the BQ76942 do not limit performance to the ratings of the EVM. Set all

protections appropriately and limit current for safe operation.

The circuit module has signal traces, components, and component leads on the bottom of the board.

This may result in exposed voltages, hot surfaces or sharp edges. Do not reach under the board

during operation.

The circuit module may be damaged by over temperature. To avoid damage, monitor the

temperature during evaluation and provide cooling, as needed, for your system environment. Do not

operate beyond the current and voltage limits in the Sepcification Table.

Some power supplies can be damaged by application of external voltages. If using more than 1

power supply, check your equipment requirements and use blocking diodes or other isolation

techniques, as needed, to prevent damage to your equipment.

The communication interface is not isolated on the EVM. Be sure no ground potential exists between

the computer and the EVM. Also be aware that the computer is referenced to the Battery- potential

of the EVM.

Connections for rated current must be made at the terminal block. Test points are not rated for the

board current.

The BQ76942 registers must be configured to enable most protections, select the monitored cells, and enable

the protection FETs on the EVM. This quick start section does not describe current protection settings. Once all

registers are configured, the values may be written to One Time Programmable memory (OTP) for use on the

next reset of the device, but since that is a permanent change it is not part of this quick start procedure. This

BQ76942 Evaluation Module

Warning

The BQ76942EVM circuit module may become hot during operation due to

dissipation of heat. Avoid contact with the board. Follow all applicable safety

procedures applicable to your laboratory.

Caution

Do not leave the EVM powered when unattended.

CAUTION

SLUUC32A – NOVEMBER 2019 – REVISED OCTOBER 2020

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