ZHCSJS6 May 2018 LM3102-Q1
PRODUCTION DATA.
- 1 特性
- 2 應(yīng)用
- 3 說明
- 4 修訂歷史記錄
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Detailed Description
- 8 Application and Implementation
- 9 Power Supply Recommendations
- 10Layout
- 11器件和文檔支持
- 12機(jī)械、封裝和可訂購信息
封裝選項(xiàng)
機(jī)械數(shù)據(jù) (封裝 | 引腳)
- PWP|20
散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)
- PWP|20
訂購信息
7.3.10 Thermal Derating
The LM3102-Q1 can supply 2.5 A below an ambient temperature of 100°C. Under worst-case operation, with either input voltage up to 42 V, operating frequency up to 1 MHz, or voltage of the RON pin below the absolute maximum of 7 V, the LM3102-Q1 can deliver a minimum of 1.9-A output current without thermal shutdown with a PCB ground plane copper area of 40 cm2, 2 oz/Cu. Figure 21 shows a thermal derating curve for the minimum output current without thermal shutdown against ambient temperature up to 125°C. Obtaining 2.5-A output current is possible by increasing the PCB ground plane area, or reducing the input voltage or operating frequency.
Figure 21. Thermal Derating Curve