ZHCSLT1B december 2020 – july 2023 BQ25672
PRODUCTION DATA
- 1
- 1 特性
- 2 應用
- 3 說明
- 4 Revision History
- 5 說明（續(xù)）
- 6 Pin Configuration and Functions
- 7 Specifications
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3
Feature Description
- 8.3.1 Device Power-On-Reset
- 8.3.2 PROG Pin Configuration
- 8.3.3 Device Power Up from Battery without Input Source
- 8.3.4 Device Power Up from Input Source
- 8.3.5 Dual-Input Power Mux
- 8.3.6 Buck Converter Operation
- 8.3.7 USB On-The-Go (OTG)
- 8.3.8 Power Path Management
- 8.3.9 Battery Charging Management
- 8.3.10 Integrated 16-Bit ADC for Monitoring
- 8.3.11 Status Outputs ( STAT, and INT)
- 8.3.12 Ship FET Control
- 8.3.13
Protections
- 8.3.13.1
Voltage and Current Monitoring
- 8.3.13.1.1 VAC Over-voltage Protection (VAC_OVP)
- 8.3.13.1.2 VBUS Over-voltage Protection (VBUS_OVP)
- 8.3.13.1.3 VBUS Under-voltage Protection (POORSRC)
- 8.3.13.1.4 System Over-voltage Protection (VSYS_OVP)
- 8.3.13.1.5 System Short Protection (VSYS_SHORT)
- 8.3.13.1.6 Battery Over-voltage Protection (VBAT_OVP)
- 8.3.13.1.7 Battery Over-current Protection (IBAT_OCP)
- 8.3.13.1.8 Input Over-current Protection (IBUS_OCP)
- 8.3.13.1.9 OTG Over-voltage Protection (OTG_OVP)
- 8.3.13.1.10 OTG Under-voltage Protection (OTG_UVP)
- 8.3.13.2 Thermal Regulation and Thermal Shutdown
- 8.3.13.1
Voltage and Current Monitoring
- 8.3.14 Serial Interface
- 8.4 Device Functional Modes
- 8.5 Register Map
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
封裝選項
機械數(shù)據(jù) (封裝 | 引腳)
- RQM|29
散熱焊盤機械數(shù)據(jù) (封裝 | 引腳)
訂購信息
8.3.5.1 VBUS Input Only
In this scenario, only single input is connected to VBUS directly, no back-to-back power MOSFETs are required. VAC1 and VAC2 are recommended to be shorted to VBUS. Both ACDRV1 and ACDRV2 need to be pulled down to GND, as shown in the figure below.
Figure 8-2 Single Input Connected to VBUS Directly Without ACFET-RBFET- At POR, the charger detects no ACFETs-RBFETs are present by sensing that the ACDRV1 and ACDRV2 pins both shorted to GND.
- The charger updates the status bits ACRB1_STAT and ACRB2_STAT to 0, and locks EN_ACDRV1 = 0 and EN_ACDRV2 = 0.
- VAC1 and VAC2 are connected to VBUS directly. The ACDRV1 and ACDRV2 pins always stay low.