Advanced Regulating Pulse Width Modulators

The UC1524A family of regulating PWM ICs has been designed to retain the same highly versatile architecture of the industry standard UC1524 (SG1524) while offering substantial improvements to many of its limitations. The UC1524A is pin compatible with "non-A" models and in most existing applications CAN be directly interchanged with no effect on power supply performance. Using the UC1524A however, frees the designer from many concerns which typically had required additional circuitry to solve.
The UC1524A includes a precise 5V reference trimmed to 1% accuracy, eliminating the need for potentiometer adjustments; an error Amplifier with an input range which includes 5V, eliminating the need for a reference divider; a Current Sense Amplifier useful in either the ground or power supply output lines; and a pair of 60V, 200mA uncommitted Transistor switches which greatly enhance output versatility.
An additional feature of the UC1524A is an under-voltage lockout circuit which disables all the internal circuitry, except the reference, until the input voltage has risen to 8V. This holds standby current low until turn-on, greatly simplifying the design of low power, off-line supplies. The turn-on circuit has approximately 600mV of hysteresis for jitter-free activation.
Other product enhancements included in the UC1524A s design include a PWM latch which insures freedom from multiple pulsing within a period, even in noisy environments, Logic to eliminate double pulsing on a single output, a 200ns external shutdown capability, and Automatic thermal protection from excessive chip temperature. The Oscillator circuit of the UC1524A is usable beyond 500kHz and is now easier to synchronize with an external Clock pulse.
The UC1524A is packaged in a hermetic 16-pin DIP and is rated for operation from -55C to +125C. The UC2524A and 3524A are available in either ceramic or plastic packages and are rated for operation from -25C to +85C and 0C to 70C, respectively. Surface mount devices are also available.
By Texas Instruments
Part Manufacturer Description Datasheet Samples
UC1524AJ/80503 Rochester Electronics LLC Switching Controller, Voltage-mode, 0.2A, 500kHz Switching Freq-Max, BIPolar, CDIP16, CERAMIC, DIP-16
UC1524AJ883B Rochester Electronics LLC PWM Controller
UC1524AL883B Rochester Electronics LLC PWM Controller
UC1524AL Rochester Electronics LLC PWM Controller
UC1524AJ Rochester Electronics LLC PWM Controller
UC1524AJ Texas Instruments Advanced Regulating Pulse Width Modulators 16-CDIP -55 to 125
UC1524AJ883B Texas Instruments Advanced Regulating Pulse Width Modulators 16-CDIP -55 to 125
UC1524AL Texas Instruments Advanced Regulating Pulse Width Modulators 20-LCCC -55 to 125
UC1524AL883B Texas Instruments Advanced Regulating Pulse Width Modulators 20-LCCC -55 to 125
UC1524A 's PackagesUC1524A 's pdf datasheet
5962-8764502EA DIP
UC1524AJ DIP
UC1524AJ-80503 DIP
UC1524AJ883B DIP
UC1524AL LCCC
UC1524AL883B LCCC




UC1524A Pinout, Pinouts
UC1524A pinout,Pin out
This is one package pinout of UC1524A,If you need more pinouts please download UC1524A's pdf datasheet.

UC1524A Application circuits
UC1524A circuits
This is one application circuit of UC1524A,If you need more circuits,please download UC1524A's pdf datasheet.


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