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Description

The CS3524A PWM control circuit retains the same versatile architecture of the industry standard CS3524(SG3524) while adding substantial improvements.

The CS3524 is pin-compatible with “non-A” versions, and in most applica tions can be directly interchanged. The CS3524A, however, eliminates many of the design restrictions which had previously required additional external circuitry.

Features

■ Precision Reference Internally Trimmed to ±1

■ Current Limit

■ Undervoltage Lockout

■ Start-up Supply Current < 4mA

■ Output to 200mA

■ 60V Output Capability

■ Wide Common-mode Input Range for Error and Current Limit Amplifiers

■ PWM Latch Insures Single Pulse per Period

■ Double Pulse Suppression

■ 200ns Shutdown

■ Guaranteed Frequency

■ Thermal Shutdown