ZHCSOZ7A june 2022 – august 2023 TPS7B4255-Q1
PRODUCTION DATA
- 1
- 1 特性
- 2 應用
- 3 說明
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
-
7 Detailed Description
- 7.1 Overview
- 7.2 Functional Block Diagram
- 7.3 Feature Description
- 7.4 Device Functional Modes
- 8 Application and Implementation
- 9 Device and Documentation Support
- 10Mechanical, Packaging, and Orderable Information
7.3.6 Output Short to Battery
When the output is shorted to the supply (as shown in Figure 7-5), the TPS7B4255-Q1 survives and no damage occurs to the device. As shown in Figure 7-6, a short to the supply can also occur when the device is powered by an isolated supply at a lower voltage. In this example, the TPS7B4255-Q1 supply input voltage is set at 7 V when a short to the main supply (14 V typical) occurs on VOUT, which typically runs at 5 V. The device survives without damage, and the back-to-back PMOS topology helps limit the continuous reverse current that flows out through VIN to less than 0.25 μA.
Figure 7-5 Output Voltage
Short to Battery
Figure 7-6 Output Voltage
Higher Than the Input