VIPer11 from STMicroelectronics enhances efficiency and flexibility

Embedded with 800 Vavalanche-rugged MOSFET from STMicroelectronics, the VIPer11 off-line converter enables equipment makers to design tougher auxiliary power supplies and power adapters. The VIPer11 operates on a wide supply voltage range, from 4.5 V to 30 V that enhances flexibility in many consumer and industrial applications. A combination of features like an integrated high-voltage startup, an error amplifier and a jittered oscillator that reduces EMI, simplifying design, space saving and BoM costs. Thanks to the logic-level MOSFET feature, the high efficiency is assured across a wide load of range. The VIPer11 series contains the VIPer114 with drain-current limit (IDLIM) of 480 mA and the VIPer115 limited at 590 mA and a choice of 30 kHz or 60 kHz operating frequency. Capable of supporting typical maximum rating of 12 W in an open-frame SMPS, or 10 W in an enclosed adapter, the VIPer11 addresses a wide variety of domestic appliances and consumer products, building-automation equipment, small industrial machinery, lighting, smart meters and motion controls. Users also leverage support from development tools including evaluation kits, application notes, spice models and eDesign simulation tool that help evaluate the innovative VIPer11 features. In addition to the extensive integrated power-supply control functions, the HV converter contains comprehensive built-in protection features including overload/short-circuit protection (OLP), line or output Over-Voltage Protection (OVP), maximum duty-cycle counter and VCC clamping, all with automatic restart. There is also an embedded thermal shutdown, built-in soft-start and pulse-skip protection to avoid flux-runaway and enhance system reliability.