SG3524 PWM Power Control Circuitry

Incorporates all functions for regulating power supply, inverter, or switching regulator.

• Part number: SG3524
• Topology: Boost, Buck, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull
• Control method: Voltage
• VCC(Min) (V): 8
• VCC(Max) (V): 40
• Frequency(Max) (kHz): 722
• UVLO thresholds on/off (V):
• Duty cycle(Max) (%): 45
• Gate drive (Typ) (A): 0.05
• Features: Adjustable Switching Frequency, Error Amplifier, Multi-topology
• Rating: Refer Data Sheet
• Operating temperature range (C): 0 to 70
• Package Group: PDIP|16
• Package size: mm2:W x L (PKG): 16PDIP: 181 mm2: 9.4 x 19.3 (PDIP|16)

Top Features:

• Complete PWM Power-Control Circuitry
• Uncommitted Outputs for Various Applications
• Low Standby Current: 8 mA (TYP)

SG3524 incorporates all the functions required in the construction of a regulating power supply, inverter, or switching regulator on a single chip. It can be used as the control element for high-power-output applications. SG3524 was designed for switching regulators of either polarity, transformer-coupled dc-to-dc converters, transformerless voltage doublers, and polarity-converter applications employing fixed-frequency, pulse-width modulation (PWM) techniques. The complementary output allows either single-ended or push-pull application. Each device includes an on-chip regulator, error amplifier, programmable oscillator, pulse-steering flip-flop, two uncommitted pass transistors, a high-gain comparator, and current-limiting and shutdown circuitry.

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