Features
3
SLVU924D – March 2014 – Revised November 2018
Copyright © 2014–2018, Texas Instruments Incorporated
bq76920 Evaluation Module User's Guide
1
Features
•
Complete evaluation system for the bq76920 3-cell to 5-cell Li-Ion and Phosphate battery AFE
•
Populated circuit module for 5-cell configuration for quick setup
•
Power connections available on banana jacks
•
Communication signals available on 4-pin connector
•
Resistor cell simulator for quick setup with only a power supply
•
PC software available for configuration
1.1
Kit Contents
•
bq76920 circuit module
•
Cable to connect the EVM to an EV2400 or EV2300 interface board
1.2
Ordering Information
For complete ordering information, refer to the product folder at
.
Table 1. Ordering Information
EVM Part Number
Chemistry
Configuration
Capacity
bq76920EVM
Li-Ion
5 cells
Any
NOTE:
Although capacity is shown as
Any
, practical limits of the physical construction of the module
typically limits the operation of the EVM to a 1P or 2P battery construction. Refer to the
physical construction section for board details.
1.3
bq76920 Circuit Module Performance Specification Summary
This section summarizes the performance specifications of the bq76920 circuit module in its default 5-cell
series FET configuration.
Typical voltage depends on the number of cells configured. Typical current depends on the application.
Board cooling may be required for continuous operation at or below maximum current.
Table 2. Performance Specification Summary
Specification
Min
Typ
Max
Unit
Input voltage BATT+ with respect to BATT–
6
–
25
V
Continuous charge or discharge current
0
–
15
A
Operating temperature range
20
25
30
°C
1.4
Required Equipment
The following equipment is required to operate the bq76920 EVM in a simple demonstration:
•
DC power supply, 0–25 V at 0.5 A for the AFE, 2.5 A for the gauge
•
DC voltmeter
•
TI EV2400 or EV2300 interface board
•
Computer with USB port and compatible Windows operating system and access to the internet
•
Test leads to connect equipment
•
Electronic load or assorted resistors, calibrated load or load with accurate current meter required for
gauge evaluation
Additional equipment may be desired to operate the bq76920 with a more extensive demonstration.