ZHCSMK6D September 2021 – November 2024 TPSM82864A , TPSM82866A
PRODMIX
- 1
- 1 特性
- 2 應用
- 3 說明
- 4 Device Options
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Detailed Description
- 8 Application and Implementation
- 9 Device and Documentation Support
- 10Revision History
- 11Mechanical, Packaging, and Orderable Information
封裝選項
機械數據 (封裝 | 引腳)
散熱焊盤機械數據 (封裝 | 引腳)
訂購信息
7.3.5 Soft Start
After enabling the device, there is a 650-μs enable delay (tDelay) before the device starts switching. The tDelay time varies with the VSET/MODE resistor used and is longest with a resistance of 249 kΩ or higher. After the enable delay, an internal soft-start circuit ramps up the output voltage in 1 ms (tRamp). This action avoids excessive inrush current and creates a smooth output voltage ramp up. This action also prevents excessive voltage drops of batteries that have a high internal impedance. Figure 7-2 shows the start-up sequence.
Figure 7-2 Start-Up SequenceThe device is able to start into a prebiased output capacitor. The device starts with the applied bias voltage and ramps the output voltage to the nominal value.