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SLUUC60–February 2020
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Copyright © 2020, Texas Instruments Incorporated
BQ24800 EVM
User's Guide
SLUUC60–February 2020
BQ24800 EVM
The BQ24800 evaluation module (EVM) is an SMBus 1- to 4-cell hybrid power boost mode battery charge
controller with battery-only boost and processor hot monitoring. The input voltage range is between 4.5 V
and 24 V, with a programmable output of 1– 4 cells charge voltage and 128-mA to 8.128-A charge current.
This EVM does not include the EV2400 interface device; it must be ordered separately to evaluate the
BQ24800 EVM.
Contents
1 Introduction ................................................................................................................... 3
1.1 EVM Features....................................................................................................... 3
1.2 I/O Descriptions..................................................................................................... 3
1.3 Controls and Key Parameters Setting ........................................................................... 3
1.4 Recommended Operating Conditions............................................................................ 4
2 Test Summary................................................................................................................ 4
2.1 Equipment ........................................................................................................... 4
2.2 Equipment Setup.................................................................................................... 5
3 Procedure..................................................................................................................... 7
3.1 AC Adapter Detection Threshold ................................................................................. 7
3.2 Charger Parameter Settings....................................................................................... 7
3.3 Charge Current and AC Current Regulation (DPM)............................................................ 7
3.4 Hybrid Boost Mode ................................................................................................. 8
3.5 Battery-only Boost Mode........................................................................................... 9
3.6 Power Path Selection .............................................................................................. 9
4 PCB Layout Guidelines.................................................................................................... 10
5 Board Layout, Schematic, and Bill of Materials ........................................................................ 11
5.1 BQ24800EVM PCB Layouts..................................................................................... 11
5.2 Schematic .......................................................................................................... 14
5.3 Bill of Materials .................................................................................................... 15
List of Figures
1 Connections of the EV2400 Kit ............................................................................................ 5
2 Original Test Setup for BQ24800 EVM (BMS031) ...................................................................... 6
3 Main Window of BQ24800 Evaluation Software......................................................................... 6
4 Test Setup for BQ24800EVM .............................................................................................. 8
5 Top Assembly............................................................................................................... 11
6 Top Layer ................................................................................................................... 11
7 Mid-Layer 1 ................................................................................................................. 12
8 Mid-Layer 2 ................................................................................................................. 12
9 Bottom Layer................................................................................................................ 13
10 Bottom Assembly........................................................................................................... 13
11 BQ24800EVM Schematic ................................................................................................. 14
List of Tables
1 I/O Descriptions.............................................................................................................. 3
2 Controls and Key Parameters Settings ................................................................................... 3
3 Recommended Operating Conditions..................................................................................... 4
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