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Updated at 01/11/2025 10:30:15(UTC+8)
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Description
- 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 UC1524As 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 -55°C to +125°C. The UC2524A and 3524A are available in either ceramic or plastic packages and are rated for operation from -25°C to +85°C and 0°C to 70°C, respectively. Surface mount devices are also available.
UC2524AN Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Mounting Style | Through Hole |
| Number of Pins | 16 Pin |
| Case/Package | DIP-16 |
| Frequency | 500 kHz |
| Supply Voltage (DC) | 8.00V (min) |
| Number of Outputs | 2 Output |
| Input Voltage (DC) | 40.0 V |
| Output Voltage | 60 V |
| Output Current | 200 mA |
| Number of Positions | 16 Position |
| Power Dissipation | 1000 mW |
| Quiescent Current | 5.00 mA |
| Number of Regulated Outputs | 2 Output |
| Rise Time | 120 ns |
| Switching Frequency | 500 kHz |
| Topology | Boost, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull |
| Duty Cycle | 45 % |
| Maximum Duty Cycle | 45 % |
| Fall Time | 25 ns |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Power Dissipation (Max) | 1000 mW |
| Supply Voltage | 8V ~ 40V |
| Supply Voltage (Max) | 40 V |
| Supply Voltage (Min) | 8 V |
| Input Voltage | 40 V |
| Show | |
| Size-Length | 19.3 mm |
| Size-Width | 6.35 mm |
| Size-Height | 4.57 mm |
| Operating Temperature | -40℃ ~ 85℃ (TA) |
| Product Lifecycle Status | Active |
| Packaging | Tube |
| RoHS | RoHS Compliant |
| Lead-Free Status | Lead Free |
| REACH SVHC Compliance Edition | 2015/06/15 |
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