ZHCSKO3B January 2020 – September 2020 BQ25611D
PRODUCTION DATA
- 1 特性
- 2 應(yīng)用
- 3 說明
- 4 Revision History
- 5 說明（續(xù)）
- 6 Device Comparison Table
- 7 Pin Configuration and Functions
- 8 Specifications
-
9 Detailed Description
- 9.1 Overview
- 9.2 Functional Block Diagram
- 9.3
Feature Description
- 9.3.1 Power-On-Reset (POR)
- 9.3.2 Device Power Up from Battery without Input Source
- 9.3.3 Power Up from Input Source
- 9.3.4 Boost Mode Operation From Battery
- 9.3.5 Power Path Management
- 9.3.6 Battery Charging Management
- 9.3.7 Ship Mode and QON Pin
- 9.3.8 Status Outputs ( STAT, INT )
- 9.3.9 Protections
- 9.3.10 Serial Interface
- 9.4 Device Functional Modes
- 9.5 Register Maps
- 10Application and Implementation
- 11Power Supply Recommendations
- 12Layout
- 13Device and Documentation Support
- 14Mechanical, Packaging, and Orderable Information
封裝選項
機械數(shù)據(jù) (封裝 | 引腳)
- RTW|24
散熱焊盤機械數(shù)據(jù) (封裝 | 引腳)
- RTW|24
訂購信息
9.4.1 Host Mode and Default Mode
The device is a host controlled charger, but it can operate in default mode without host management. In default mode, the device can be used an autonomous charger with no host or while host is in sleep mode. When the charger is in default mode, WATCHDOG_FAULT bit is HIGH. When the charger is in host mode, WATCHDOG_FAULT bit is LOW.
After power-on-reset, the device starts in default mode with watchdog timer expired, or default mode. All the registers are in the default settings.
All the device parameters can be programmed by the host. To keep the device in host mode, the host has to reset the watchdog timer by writing 1 to WD_RST bit before the watchdog timer expires (WATCHDOG_FAULT bit is set), or disable watchdog timer by setting WATCHDOG bits = 00.
Figure 9-16 Watchdog
Timer Flow Chart