HV3-2405E-5

S E M I C O N D U C T O R HV-2405E World-Wide Single Chip Power Supply Description The HV-2405E is a single chip off line power supply that converts world wide AC line voltages to a regulated DC voltage. The output voltage is adjustable from 5VDC to 24VDC with an output current of up to 50mA. The HV-2405E can operate from input voltages between 15Vrms and 275Vrms as well as input frequencies between 47Hz to 200Hz (see Table 1 in section titled “Minimum Input Voltage vs Output Current” for details). The wide input voltage range makes the HV-2405E an excellent choice for use in equipment which is required to operate from either 240V or 120V. Unlike competitive AC-DC convertors, the HV-2405E can use the same external components for operation from either voltage. This flexibility in input voltage, as well as frequency, enables a single design for a world wide supply. The HV-2405E has a safety feature that monitors the incoming AC line for large dv/dt (i.e. random noise spikes on AC line, initial power applied at or near peak line voltage). This inhibit function protects the HV-2405E, and subsequent circuitry, by turning off the HV-2405E during large dv/dt transients.This feature is utilized to ensure operation within the SOA (Safe Operating Area) of the HV-2405E. The HV-2405E can be configured to work directly from an electrical outlet (see Figure 1) or imbedded in a larger system (see Figure 7). Both application circuits have components that will vary based on input voltage, outp...