| Topology | Boost, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull |
| Duty cycle (Max) (%) | 50 |
| Vin (Max) (V) | 40 |
| UVLO thresholds on/off (V) | 7.5/7 |
| Features | Adjustable Switching Frequency, Error Amplifier, Multi-topology, Soft Start, Synchronization Pin |
| Operating temperature range (C) | -25 to 85 |
| Switching frequency (Max) (kHz) | 450 |
| Rating | Catalog |
| Gate drive (Typ) (A) | 0.1 |
- Complete PWM Power Control Circuitry
- Uncommitted Outputs for Single-Ended or Push-Pull Applications
- Low Standby Current . . . 8 mA Typical
- Interchangeable With SG1524, SG2524 and SG3524, Respectively
The UC1524, UC2524 and UC3524 incorporate on a single monolithic chip all the functions required for the construction of regulating power supplies, inverters or switching regulators. They can also be used as the control element for high-power-output applications. The UC1524 family 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 techniques. The dual alternating outputs allow either single-ended or push-pull applications. Each device includes an on-chip reference, error amplifier, programmable oscillator, pulse-steering flip-flop, two uncommitted output transistors, a high-gain comparator, and current-limiting and shut-down circuitry. The UC1524 is characterized for operation over the full military temperature range of -55°C to 125°C. The UC2524 and UC3524 are designed for operation from -25°C to 85°C and 0°C to 70°C, respectively.
