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TL391BQDBVRQ1

The TL391BQDBVRQ1 is a high-performance, high-voltage, pulse width modulation (PWM) controller from Texas Instruments. It is designed for use in a variety of power management applications, including AC-DC power supplies, battery chargers, and LED drivers.

Description:

The TL391BQDBVRQ1 is a monolithic integrated circuit that provides a complete solution for controlling the power delivered to a load. It features a high-voltage startup circuit, an under-voltage lockout (UVLO), and a precision voltage reference. The device also includes a variety of protection features, such as over-current protection, over-temperature protection, and cycle-by-cycle current limiting.

Features:

• High-voltage operation up to 700V
• Wide input voltage range of 4.5V to 450V
• High accuracy, low-drift voltage reference
• Internal oscillator with frequency jitter reduction
• Soft-start and burst mode operation
• Over-current protection with cycle-by-cycle current limiting
• Over-temperature protection
• Under-voltage lockout (UVLO)
• Small package size (QFN-16)

Applications:

The TL391BQDBVRQ1 is suitable for a wide range of power management applications, including:

1. AC-DC power supplies
2. Battery chargers
3. LED drivers
4. Motor control
5. Inverters
6. Class D audio amplifiers
7. Power factor correction (PFC) circuits

In summary, the TL391BQDBVRQ1 is a versatile and high-performance PWM controller that offers a range of features and protections for power management applications. Its high-voltage operation, precision voltage reference, and robust protection features make it an excellent choice for a variety of power management applications.