Datasheet

2-1
Circuit Module
Circuit Module
The bq2023EVM–001-based circuit module is a complete and compact
example solution of a circuit for battery monitoring of a single-cell Li-Ion pack.
The circuit module incorporates a bq2023 battery-monitor IC and all other
components necessary to accurately monitor the charge and discharge of one
Li-Ion cell or a battery pack of any chemistry with a voltage of 2.8–5.5 V.
Terminal blocks on the circuit module provide direct connection to the cell(s)
(BAT+, BAT–), and the serial communications port (SDQ). The system load
and charger connect across PACK+ and PACK–.
Topic Page
2.1 Pin Descriptions 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Schematic 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 Board Layout 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 Bill of Materials 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5 Performance Specifications 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2