Texas Instruments bq27531EVM, Руководство пользователя, Страница: 13 / 27

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Circuit Module Physical Layouts, Bill of Materials, and Schematic
13 SLUUA90A – April 2013 – Revised July 2016
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bq27531EVM With bq27531 Battery Management Unit Impedance Track™
Fuel Gauge and bq24192 4.5-A, Switch-Mode Battery Charger for Single-Cell
Applications
3.3 bq27531 Circuit Module Performance Specification Summary
This section summarizes the performance specifications of the bq27531 circuit module.
3.4 Recommended Operating Conditions
Min Typ Max Unit
Supply voltage, V
IN
Input voltage from ac adapter 4.2 6 V
System voltage, V
SYS
Voltage output at SYS terminal (depends on VBAT voltage
and status of V
INDPM
and input current limit circuits)
3.3 VBATR
EG+4.17
%
V
Battery voltage, V
BAT
Voltage output at VBAT terminal (registers set via bq27531
software) 3 4.2 4.44 V
Supply current, I
IN(MAX)
Maximum input current from ac adapter input (registers set
via bq27531 software) 1.5 3 A
Fast charge current,
I
CHRG(MAX)
Battery charge current (registers set via bq27531 software) 0.550 3 A
Operating junction temperature range, T
J
-40 125 °C
4 EVM Hardware and Software Setup
This section describes how to connect the different components of the EVM how to install the
bq27531EVM PC software and.
4.1 Recommended Test Equipment
4.1.1 Power Supplies
1. Power Supply #1 (PS #1) capable of supplying 6 V at 3 A is required.
2. If not using a battery as the load, then power supply #2 (PS #2) capable of supplying up to 5 V at 5 A
is required to power the circuit shown in Figure 7 .
4.1.2 Load #1 Between BAT and GND
Testing with an actual battery is the best way to verify operation in the system. If a battery is not available,
then a circuit similar to the one shown in
Figure 7 can simulate a battery when connected to a power
supply.
Figure 7. BAT_Load (PR1010) Schematic