FPF2700MX;FPF2700MPX;中文规格书,Datasheet资料.pdf

January 2011 ? 2010 Fairchild Semiconductor Corporation FPF2700 / FPF2701 / FPF2702 ? Rev. 1.0.2 FPF2700 / FPF2701 / FPF2702 — A ccuPow er? 0.4~2A A djustable O ver-C urrent Protection Load Sw itches FPF2700 / FPF2701 / FPF2702 — AccuPower? 0.4~2A Adjustable Over-Current Protection Load Switches Features ? 2.8V to 36V Input Voltage Range ? Typical RDS(ON)=88m? ? 0.4A to 2A Adjustable Current Limit (Min.) ? Slew Rate Controlled ? ESD Protected, above 2000V HBM ? Thermal Shutdown ? Active LOW Enable ? UVLO Protection ? Power-Good Output Applications ? Motor Drives ? Digital Cameras ? Consumer Electronics ? Industrial ? Computing ? Hard Disk Drives ? Telecom Equipment Figure 1. MLP (Top View) Figure 2. MLP (Bottom View) Figure 3. SO8 (Top View) Description The AccuPower? FPF270X series is a family of current-limit load switches that provide full protection to systems and loads from excess current conditions. Minimum current limit is adjustable from 0.4A to 2.0A. The FPF270X contains a slew-rate-controlled N-channel MOSFET and slew-rated turn-on to prevent power bus disturbances from being caused by “hot plugging” loads or momentary excess load demands. The input voltage range is 2.8V to 36V. Loads can be activated or deactivated with a low-voltage logic-compatible ON pin. Fault conditions can be monitored using the error flag pin and/or the power-good pin. Each member of the FPF270X family serves a category of load-fault response. All devices clamp the load current so that it cannot exceed an externally programmed current level. An over temperature feature provides further device protection in case of excessive levels of power dissipation. FPF2700 responds to an overload condition that lasts longer than a fixed blanking period by turning off the load, followed by a retry after the auto-restart time. FPF2701 responds to an overload condition that lasts longer than a fixed blanking period by latching off th