ZHCSRR9K December 2003 – June 2024 TPS2061 , TPS2062 , TPS2063 , TPS2065 , TPS2066 , TPS2067
PRODUCTION DATA
- 1
- 1 特性
- 2 應用
- 3 說明
- 4 說明（續）
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Parameter Measurement Information
- 8 Detailed Description
-
9 Application and Implementation
- 9.1
Application Information
- 9.1.1 Power-supply Considerations
- 9.1.2 OC Response
- 9.1.3 Power Dissipation and Junction Temperature
- 9.1.4 Thermal Protection
- 9.1.5 Undervoltage Lockout (UVLO)
- 9.1.6 Universal Serial Bus (USB) Applications
- 9.1.7 Host/Self-Powered and Bus-powered Hubs
- 9.1.8 Low-power Bus-powered and High-Power Bus-Powered Functions
- 9.1.9 USB Power-distribution Requirements
- 9.1.10 Generic Hot-Plug Applications
- 9.1
Application Information
- 10Device and Documentation Support
- 11Revision History
- 12Mechanical, Packaging, and Orderable Information
封裝選項
請參考 PDF 數據表獲取器件具體的封裝圖。
機械數據 (封裝 | 引腳)
- D|8
- DBV|5
- DGN|8
散熱焊盤機械數據 (封裝 | 引腳)
- DGN|8
訂購信息
8.7 Overcurrent
A sense FET is employed to check for overcurrent conditions. Unlike current-sense resistors, sense FETs do not increase the series resistance of the current path. When an overcurrent condition is detected, the device maintains a constant output current and reduces the output voltage accordingly. Complete shutdown occurs only if the fault is present long enough to activate thermal limiting.
There are two kinds of current limit profiles for the TPS20xx family of devices.
The TPS2063 and TPS2067 have an output I vs V characteristic similar to the plot labeled Current Limit with Peaking in Figure 8-4. This type of limiting can be characterized by two parameters, the overcurrent trip threshold (IOC), and the short-circuit output current threshold (IOS).
The TPS2061, TPS2062, TPS2065, and TPS2066 have an output I vs V characteristic similar to the plot labeled Flat Current Limit in Figure 8-4. This type of limiting can be characterized by one parameters, the short circuit current (IOS).
Figure 8-4 Current Limit Profiles