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2022-09-24 23:33:15
UC3524 - Advanced Regulation Pulse Width Modulator
The UC1524, UC2524 and UC3524 integrate all functions required for the construction of a regulated power supply, inverter switching regulator in a single chip. They can also be used as control elements for high power output applications. The UC1524 family is designed for either polarity switching regulators, transformer coupled DC-DC converters, transformer voltage doublers and polarity converter applications with fixed frequency, pulse width modulation techniques. Dual alternate outputs allow single-ended or push-pull applications. Each device includes an on-chip reference, error amplifier, programmable oscillator, flip-flop pulse steering, two uncommitted output transistors, a high gain comparator and current limit and shutdown circuitry. The UC1524 is characterized for operation over the entire military temperature range from -55°C to +125°C. The UC2524 and UC3524 are designed for operation from -25°C to +85°C and 0°C to +70°C.
Features • Complete PWM power control circuit • Uncommitted output for single-ended or push-pull applications • Low standby current...8mA typical • Interchangeable with SG1524, SG2524 and SG3524, respectively