ZHCSGY5A October 2017 – December 2017
PRODUCTION DATA.
- 1 特性
- 2 應(yīng)用范圍
- 3 說明
- 4 修訂歷史記錄
- 5 說明 （續(xù)）
- 6 Device Comparison Table
- 7 Pin Configuration and Functions
- 8 Specifications
- 9 Detailed Description
- 10Application and Implementation
- 11Power Supply Recommendations
- 12Layout
- 13器件和文檔支持
- 14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)
- RGT|16
散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)
- RGT|16
訂購信息
9.3.4.1.1 Input DPM Mode (VIN-DPM)
The bq2407x utilizes the VIN-DPM mode for operation from current-limited USB ports. When EN1 and EN2 are configured for USB100 (EN2=0, EN1=0) or USB500 (EN2=0, EN1=1) modes, the input voltage is monitored. If VIN falls to VIN-DPM, the input current limit is reduced to prevent the input voltage from falling further. This prevents the bq2407x from crashing poorly designed or incorrectly configured USB sources. Figure 15 shows the VIN-DPM behavior to a current limited source. In this figure, the input source has a 400-mA current limit and the device is in USB500 mode (EN1=1, EN2=0).
Figure 15. VIN-DPM Waveform