Description

The BP85256D is a high performance, highly integrated power supply switcher IC with low standby consumption. The BP85256D can be configured as buck, buck-boost topologies for universal 85~265V AC inputs. The BP85256D integrates a 650 V power MOSFET, a high-voltage current source for self-biasing, a current sensing circuit, an output feedback circuit, a freewheeling diode and a controller. External VCC capacitor and loop compensation components can be eliminated, which reduces cost and size of overall power systems, and improves reliability. The BP85256D employs multi-mode control algorithm. As a result, the no-load power consumption and the average efficiency have been improved, and the audible noise is reduced. The BP85256D features comprehensive protections, including short circuit protection (SCP), output over voltage protection (OVP), over load protection (OLP), FB open loop protection, cycle-by-cycle current limit, and over temperature protection (OTP). The BP85256D is available in SOP-7 package