DESCRIPTION
At medium and heavy loads, the regulator works in a fixed frequency with frequency jittering. Jitterring helps reduce EMI energy on the switching frequency and its harmonics. During a light-load condition, the regulator freezes the peak current and reduces its switching frequency to 25kHz to offer excellent efficiency. At very light loads, the regulator enters burst mode to achieve low standby power consumption. Full protection features include brown-in and brown-out, VCC under-voltage lockout (UVLO), overload protection (OLP), short-circuit protection (SCP), input over-voltage protection (OVP), VCC over-voltage protection (OVP), and over-temperature protection (OTP). The HF500-30 features over-power line compensation to ensure that the overload protection point is independent of the input voltage. The HF500-30 is available in a PDIP8-7B package. Maximum Output Power (1) 230VAC ± 15% 85VAC ~ 265VAC Adapter (2) Open Frame (3) Adapter (2) Open Frame (3) POUT (W) 30 45 20 30 F...
Monolithic Power Systems
