Texas Instruments

TL3843D-8  

DC DC Switching Controllers

TL3843D-8 Description

The TL3843D-8 is a versatile and highly efficient power management integrated circuit (PMIC) designed by Texas Instruments. This IC is specifically engineered to serve as a transistor driver with a positive output configuration, making it ideal for applications requiring precise control and high performance. The TL3843D-8 supports multiple topologies, including boost, flyback, and forward, offering flexibility in circuit design. It operates within a wide supply voltage range of 7.6V to 30V, ensuring compatibility with various power supply systems. With a switching frequency of up to 500kHz, the TL3843D-8 can deliver high efficiency and fast response times, crucial for modern power conversion applications.

TL3843D-8 Features

• Output Type: Transistor Driver
• Output Configuration: Positive
• Frequency - Switching: Up to 500kHz
• Voltage - Supply (Vcc/Vdd): 7.6V to 30V
• Control Features: Frequency Control
• Duty Cycle (Max): 97%
• Number of Outputs: 1
• Output Phases: 1
• Operating Temperature: 0°C to 70°C (TA)
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Package: Tube
• Mounting Type: Surface Mount
• Synchronous Rectifier: No
• Clock Sync: No
• ECCN: EAR99
• HTSUS: 8542.39.0001
• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

The TL3843D-8 stands out due to its high maximum duty cycle of 97%, which allows for efficient power transfer and minimal energy loss. Its wide operating temperature range ensures reliability in various environmental conditions. The surface mount package and tube packaging make it suitable for automated assembly processes, enhancing manufacturing efficiency. Additionally, the TL3843D-8 meets stringent environmental compliance standards, including ROHS3 and REACH, making it a responsible choice for environmentally conscious designs.

TL3843D-8 Applications

The TL3843D-8 is well-suited for a variety of applications where efficient power conversion and control are paramount. Its multi-topology support makes it ideal for:

• DC-DC Converters: Boost, flyback, and forward converter designs benefit from the TL3843D-8's high switching frequency and efficient power transfer.
• Power Supplies: Ideal for applications requiring a wide input voltage range and precise output control, such as in telecommunications, computing, and industrial equipment.
• Battery Chargers: The high efficiency and control features make it suitable for battery charging circuits, ensuring optimal charging profiles and prolonged battery life.
• LED Drivers: The TL3843D-8 can be used to drive high-power LEDs, providing stable and efficient power delivery for lighting applications.

Conclusion of TL3843D-8

The TL3843D-8 from Texas Instruments is a robust and flexible power management IC that offers significant advantages over similar models. Its wide supply voltage range, high switching frequency, and multi-topology support make it a versatile choice for a variety of power conversion applications. The high maximum duty cycle and efficient power transfer ensure optimal performance and energy efficiency. With its surface mount package and compliance with environmental standards, the TL3843D-8 is an excellent choice for modern power management designs. Whether used in DC-DC converters, power supplies, battery chargers, or LED drivers, the TL3843D-8 delivers reliable performance and exceptional value.

TL3843D-8 Documents

Download datasheets and manufacturer documentation for TL3843D-8

Datasheets :

TL284x, TL384x      

PCN Design/Specification :

Mult Devices Font 21/Apr/2018       Design 25/Feb/2022