It's a Unisonic Technologies UC3845L DIP-8 High Performance Current mode PWM Controller. With a small number of external components, it is a high-performance fixed frequency current mode controller that is intended for off-line and DC-to-DC converter applications. UC3845 has UVLO thresholds of 8.5V(ON) and 7.6V(OFF) for lower voltage applications.
Features:
- Operation output switching frequency up to 500 kHz
- Output deadtime adjustable from 50% to 70%
- Latching PWM for cycle-by-cycle current limiting
- Automatic feed forward compensation
Specifications:
| Model | UC3845L |
| Brand | Unisonic Technologies |
| Type | Current mode PWM controller |
| Package | DIP-8 |
| Input Volatge | -0.3 ~ +5.5V |
| Zener Current | 30mA |
| Power Dissipation | 1250mW |
| Storage Temperature | -65 ~ +150 ℃ |
| Number of Pins | 8 |
| Mounting Type | Through Hole |
| Country of Origin | China |
