SC1739 智能穿戴蓝牙耳机小封装电池开关芯片解说

SC1739 Configurable Reset Timer with Integrated  Load Switch Descriptions The SC1739 is both a timer for resetting a mobile device and an advanced load management switches for applications requiring a highly integrated solution. Output auto-discharge while the device shutdown made output voltage off quickly. Thermal shutdown function can protect the device and load. The SC1739 is available in CSP-12L package. Standard product is Pb-free and Halogen-free. Features  Input voltage range : 1.8~5.5V  Main switch RON  : 23mΩ @ VBAT=3.8V, Typ.  Continue output current   :  3.8A (JEDEC 2S2P, No VIA) 4.5A (JEDEC 2S2P, Thermal VIA)  Slew Rate / Inrush Control with tR: 2.7ms (Typ.)  Factory Programmed Reset Delay: 7.5s  Factory Programmed Reset Pulse: 400ms  Factory Customized Turn-on Time: 2.3s  Factory Customized Turn-off Delay: 7.3s  Adjustable Reset Delay Option with External Resistor  Zero-Second Test-Mode Enable  Over-Voltage Protection: Allow Input Pins > VBAT