ZHCSDI5C March 2015 – October 2022 BQ25895
PRODUCTION DATA
- 1 特性
- 2 应用
- 3 说明
- 4 Revision History
- 5 说明（续）
- 6 Pin Configuration and Functions
- 7 Specifications
-
8 Detailed Description
- 8.1 Functional Block Diagram
- 8.2
Feature Description
- 8.2.1 Device Power-On-Reset (POR)
- 8.2.2 Device Power Up from Battery without Input Source
- 8.2.3 Device Power Up from Input Source
- 8.2.4 Input Current Optimizer (ICO)
- 8.2.5 Boost Mode Operation from Battery
- 8.2.6 Power Path Management
- 8.2.7 Battery Charging Management
- 8.2.8 Battery Monitor
- 8.2.9 Status Outputs (STAT, and INT)
- 8.2.10 BATET (Q4) Control
- 8.2.11 Current Pulse Control Protocol
- 8.2.12 Input Current Limit on ILIM
- 8.2.13 Thermal Regulation and Thermal Shutdown
- 8.2.14 Voltage and Current Monitoring in Buck and Boost Mode
- 8.2.15 Battery Protection
- 8.2.16 Serial Interface
- 8.3 Device Functional Modes
- 8.4 Register Maps
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
8.2.16.7 Multi-Read and Multi-Write
The charger device supports multi-read and multi-write on REG00 through REG14 except REG0C.
Figure 8-15 Multi-Write
Figure 8-16 Multi-ReadREG0C is a fault register. It keeps all the fault information from last read until the host issues a new read. For example, if Charge Safety Timer Expiration fault occurs but recovers later, the fault register REG0C reports the fault when it is read the first time, but returns to normal when it is read the second time. In order to get the fault information at present, the host has to read REG0C for the second time. The only exception is NTC_FAULT which always reports the actual condition on the TS pin. In addition, REG0C does not support multi-read and multi-write.