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UC3845BVD1R2G

The UC3845BVD1R2G is a high-performance, fixed frequency, current mode control PWM controller designed for offline switch mode power supplies, DC-DC converters, and motor control applications. It is manufactured by ON Semiconductor.

Description:

The UC3845BVD1R2G is a monolithic integrated circuit that provides all the active functions required to implement a current mode controlled switch mode power supply. It includes error amplifiers, oscillator, dead time control, current limit, thermal shutdown, and other protective features. The device is available in a thermally enhanced PowerSO-8 package.

Features:

1. Fixed 50kHz switching frequency
2. Current mode control with peak or valley current limit
3. Wide input voltage range (45V to 440V)
4. High output current capability (up to 3A)
5. Thermal shutdown protection
6. Under-voltage lockout (UVLO) protection
7. Over-temperature protection
8. Soft-start control
9. Burst mode operation for light load conditions
10. Push-pull output stage with totem-pole or complementary output

Applications:

1. Offline switch mode power supplies
2. DC-DC converters
3. Motor control applications
4. Battery chargers
5. LED lighting
6. Industrial control systems
7. Telecommunications equipment

The UC3845BVD1R2G is a versatile and reliable PWM controller that offers high performance and flexibility for a wide range of power conversion applications. Its fixed frequency operation and current mode control make it suitable for applications that require high efficiency and low output voltage ripple. The device's thermal and protection features ensure reliable operation and long life in demanding environments.