ZHCSL09C April 2020 – December 2020 LM7480-Q1
PRODUCTION DATA
- 1 特性
- 2 應用
- 3 說明
- 4 Revision History
- 5 Device Comparison Table
- 6 Pin Configuration and Functions
- 7 Specifications
- 8 Parameter Measurement Information
- 9 Detailed Description
-
10Applications and Implementation
- 10.1 Application Information
- 10.2 Typical 12-V Reverse Battery Protection Application
- 10.3 200-V Unsuppressed Load Dump Protection Application
- 10.4 Do's and Don'ts
- 11Power Supply Recommendations
- 12Layout
- 13Device and Documentation Support
- 14Mechanical, Packaging, and Orderable Information
9.3.3 Overvoltage Protection and Battery Voltage Sensing (VSNS, SW, OV)
Connect a resistor ladder as shown in Figure 9-4 for overvoltage threshold programming.
Figure 9-4 Programming Overvoltage Threshold and Battery
SensingA disconnect switch is integrated between VSNS and SW pins. This switch is turned OFF when EN/UVLO pin is pulled low. This helps to reduce the leakage current through the resistor divider network during system shutdown state (IGN_OFF state).