The UC3524AN is an advanced Regulating Pulse Width Modulation (PWM) 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. It is pin compatible with "non-A" models and in most existing applications can be directly interchanged with no effect on power supply performance. It 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 is an under-voltage lockout circuit which disables all the internal circuitry, except the reference, until the input voltage has risen to 8V.
- Precision reference internally trimmed to ±1%
- High-performance current limit function
- Under-voltage lockout with hysteretic turn-on
- <=4mA Start-Up supply current
- Wide common-mode input range for both error and current limit amplifiers
- PWM latch insures single pulse per period
- Double pulse suppression logic
- 200ns Shutdown through PWM latch
- Guaranteed frequency accuracy
- Thermal shutdown protection
- Green product and no Sb/Br
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