Texas Instruments BQ2573 Series, User Manual, Page: 1 / 27

User’s Guide
BQ2573X Evaluation Module
ABSTRACT
The BQ25730EVM and BQ25731EVM evaluation modules (EVM) are I
2
C-controlled NVDC-1 buck boost
charger. The input voltage range is between 3.5 V and 26 V, with a programmable output of 1–5 cells and a
charge output current range of 128 mA to 15 A. This EVM does not include the EV2400 interface device. The
EV2400 must be ordered separately to evaluate the BQ2573X EVM.
Table of Contents
1 Introduction ............................................................................................................................................................................. 2
1.1 EVM Features.................................................................................................................................................................... 2
1.2 General Description........................................................................................................................................................... 2
2 Test Summary ......................................................................................................................................................................... 5
2.1 Definitions.......................................................................................................................................................................... 5
2.2 Equipment.......................................................................................................................................................................... 5
2.3 Equipment Setup................................................................................................................................................................ 6
2.4 Procedure........................................................................................................................................................................... 9
3 Bill of Materials, Board Layout, and Schematics ............................................................................................................... 10
3.1 Bill of Materials................................................................................................................................................................. 10
3.2 Board Assembly Layout................................................................................................................................................... 13
3.3 Schematic........................................................................................................................................................................ 19
Revision History ....................................................................................................................................................................... 21
List of Figures
Figure 2-2. Original Test Setup for BMS051 (BQ2573X EVM).................................................................................................... 7
Figure 2-3. BQ2573X Evaluation Software Main Window........................................................................................................... 8
Figure 2-4. EN_OTG.................................................................................................................................................................... 9
Figure 3-1. Top Assembly.......................................................................................................................................................... 13
Figure 3-2. Bottom Assembly.................................................................................................................................................... 14
Figure 3-3. PCB Layer 1............................................................................................................................................................ 15
Figure 3-4. PCB Layer 2............................................................................................................................................................ 16
Figure 3-5. PCB Layer 3............................................................................................................................................................ 17
Figure 3-6. PCB Layer 4............................................................................................................................................................ 18
Figure 3-7. BQ25730 EVM Schematic....................................................................................................................................... 19
Figure 3-8. BQ25731 EVM Schematic....................................................................................................................................... 20
List of Tables
Table 1-1. I/O Description............................................................................................................................................................ 2
Table 1-2. Controls and Key Parameters Setting......................................................................................................................... 3
Table 1-3. Recommended Operating Conditions......................................................................................................................... 4
Table 3-1. BQ2573X EVM Bill of Materials................................................................................................................................ 10
Trademarks
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