ZHCSOF5A May 2022 – September 2022 TPS25985
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 Overview
- 8.2 Functional Block Diagram
- 8.3
Feature Description
- 8.3.1 Undervoltage Protection
- 8.3.2 Insertion Delay
- 8.3.3 Overvoltage Protection
- 8.3.4 Inrush Current, Overcurrent, and Short-Circuit Protection
- 8.3.5 Analog Load Current Monitor (IMON)
- 8.3.6 Mode Selection (MODE)
- 8.3.7 Parallel Device Synchronization (SWEN)
- 8.3.8 Stacking Multiple eFuses for Unlimited Scalability
- 8.3.9 Analog Junction Temperature Monitor (TEMP)
- 8.3.10 Overtemperature Protection
- 8.3.11 Fault Response and Indication (FLT)
- 8.3.12 Power Good Indication (PG)
- 8.3.13 Output Discharge
- 8.3.14 General Purpose Comparator
- 8.3.15 FET Health Monitoring
- 8.3.16 Single Point Failure Mitigation
- 8.4 Device Functional Modes
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
9.1.1 Single Device, Standalone Operation
Figure 9-1 Single Device, Standalone OperationThe MODE pin is left OPEN to configure for standalone operation.
Other variations:
The IREF pin can be driven from an external reference voltage source.
In a host MCU controlled system, EN/UVLO can be connected to a GPIO pin to control the device. IMON pin voltage can be monitored using an ADC. The host MCU can use a DAC to drive IREF to change the current limit threshold dynamically.
The device can be used as a simple high current load switch without adjustable overcurrent or fast-trip protection by tying the ILIM and IMON pins to GND and leaving the IREF pin open. The inrush current protection, fixed fast-trip and internal fixed overcurrent protection are still active in this condition.
The CMPP, CMPM, and CMPOUT pins can be used to implement adjustable OVP or PG thresholds or PROCHOT# or Load Handshake timer functionality as described in the General Purpose Comparator section.