ZHCSNF1 February 2021 BQ25960
PRODUCTION DATA
- 1 特性
- 2 應用
- 3 說明
- 4 Revision History
- 5 Description (continued)
- 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 Charging System
- 9.3.2 Battery Charging Profile
- 9.3.3 Device Power Up
- 9.3.4 Device HIZ State
- 9.3.5 Dual Input Bi-Directional Power Path Management
- 9.3.6 Bypass Mode Operation
- 9.3.7 Charging Start-Up
- 9.3.8 Adapter Removal
- 9.3.9 Integrated 16-Bit ADC for Monitoring and Smart Adapter Feedback
- 9.3.10 Device Modes and Protection Status
- 9.3.11 INT Pin, STAT, FLAG, and MASK Registers
- 9.3.12 Dual Charger Operation Using Primary and Secondary Modes
- 9.3.13 CDRVH and CDRVL_ADDRMS Functions
- 9.4 Programming
- 9.5 Register Maps
- 10Application and Implementation
- 11Power Supply Recommendations
- 12Layout
- 13Device and Documentation Support
- 14Mechanical, Packaging, and Orderable Information
9.3.5.4 Dual Input with ACFET1-RBFET1
In this scenario, ACFET1-RBFET1 is populated, but ACFET2-RBFET2 is not. VAC2 is short to VBUS and ACDRV2 is pulled down to ground. The table below summarizes the connection, register control and status functions. Use VAC1 for adapter input and VBUS for wireless input.
Table 9-3 Dual Input with ACFET1-RBFET1
| INPUT CONFIGURATION | DUAL INPUT |
|---|---|
| External FET connection | ACFET1-RBFET1, no ACFET2-RBFET2 |
| Input pin connection |
VAC1 connected to input source 1 VAC2 short to VBUS |
| ACDRV pin connection |
ACDRV1 active ACDRV2 short to ground |
| ACDRV1_STAT |
0: ACDRV1 OFF 1: ACDRV1 ON |
| ACDRV2_STAT | 0 |
| DIS_ACDRV_BOTH | 0: Allow ACDRV1 to turn on if other conditions of ACDRV turn on are met 1: Force ACDRV1 OFF |
| ACRB1_CONFIG_STAT | 1 |
| ACRB2_CONFIG_STAT | 0 |
| EN_HIZ |
0: Allow ACDRV1 to turn on if other conditions of ACDRV turn on are met 1: Force ACDRV1 OFF |
Figure 9-5 Dual Input with ACFET-RBFET1