TL2844BDR-8

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TL2844BDR-8

IC REG CTRLR BST FLYBK PWM 8SOIC

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Thông số kỹ thuật

Part Status Active
Base Product Number TL2844
Output Type Transistor Driver
Function Step-Up, Step-Up/Step-Down
Output Configuration Positive
Topology Boost, Flyback, Forward
Number of Outputs 1
Output Phases 1
Voltage - Supply (Vcc/Vdd) 10V ~ 30V
Frequency - Switching Up to 500kHz
Duty Cycle (Max) 48%
Synchronous Rectifier No
Clock Sync No
Control Features Frequency Control
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Packaging Cut Tape (CT), Tape & Reel (TR)

Tổng quan

Description

The TL2844BDR-8 is a PWM (Pulse Width Modulation) controller designed primarily for off-line and DC-to-DC converter applications. It is a part of the TL284x series, which are fixed frequency PWM controllers. This integrated circuit is known for its precise duty cycle control and high performance, making it suitable for efficient power supply designs.
Key features of the TL2844BDR-8 include its wide operating voltage range and low start-up current, which enhance its efficiency in power management applications. It typically operates at a fixed frequency, which helps in simplifying the design process and improving the predictability of performance in various applications.
The device is housed in an SOIC-8 package, which is a small outline integrated circuit with eight pins, making it compact and suitable for space-constrained applications. Common applications of the TL2844BDR-8 include use in switch-mode power supplies, battery chargers, and other power conversion systems. Its design incorporates robust protection features such as over-temperature and over-current protection, ensuring reliable operation in various conditions.

Features

The TL2844BDR-8 is a voltage regulator from Texas Instruments designed for power management in various electronic applications. Key features include:
1. Low Dropout Voltage: This allows the regulator to maintain a stable output voltage even with a minimum difference between input and output voltages.
2. Fixed Output Voltage: The regulator provides a precise and stable output voltage, facilitating consistent performance across applications.
3. Thermal Protection: Integrated thermal shutdown prevents overheating, enhancing reliability and safety.
4. Current Limiting: Protects the device from excessive current, ensuring longevity and stability in operation.
5. Surface-Mount Package: Available in the small-outline SOIC package, ideal for space-constrained applications.
6. Wide Input Voltage Range: This feature makes the TL2844BDR-8 versatile for use in various power supply configurations.
7. High Output Current Capability: Supports a robust output current, suitable for driving a range of loads.
These features make the TL2844BDR-8 a reliable choice for applications requiring efficient and stable voltage regulation.

Package

The TL2844BDR-8 is a PWM controller IC typically used in power supply applications. It is housed in an SOIC-8 (Small Outline Integrated Circuit) package, which is an 8-pin surface mount package.

Pinout

The TL2844BDR-8 is an integrated PWM controller commonly used in switching power supplies. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Below is a brief overview of its pin functions:
1. Compensation (COMP): This pin is used for compensating the control loop of the power supply.
2. Voltage Feedback (VFB): It receives the voltage feedback from the output to regulate the power supply.
3. Current Sense (ISENSE): Monitors the current to protect against overcurrent conditions.
4. RT/CT (Timing Resistor/Capacitor): Sets the oscillator frequency with an external resistor and capacitor.
5. Ground (GND): The common ground reference for the device.
6. Output (OUT): Drives the gate of the external power MOSFET.
7. VCC (Supply Voltage): Powers the IC.
8. Voltage Reference (VREF): Provides a stable reference voltage for the PWM.
These pins work together to regulate the output voltage, sense current, and drive an external switching device, making the TL2844BDR-8 suitable for a variety of power supply applications.

Manufacturer

The TL2844BDR-8 is manufactured by Texas Instruments. Texas Instruments, commonly referred to as TI, is a global semiconductor company that designs and manufactures a range of semiconductor devices. They are well-known for their analog and embedded processing products, serving industries such as automotive, industrial, personal electronics, communications equipment, and enterprise systems. TI is recognized for its innovation in electronics and contributions to the technology sector.

Application

The TL2844BDR-8 is a PWM (Pulse Width Modulation) controller commonly used in DC-DC converters and power supply circuits. Its application areas include consumer electronics, telecommunications, and industrial power systems where efficient voltage regulation is needed. It is suitable for use in flyback, boost, and forward converter designs, making it versatile for various power management applications.

Equivalent

The TL2844BDR-8 is a PWM controller typically used in power supply designs. Equivalent products include:
1. UC3844: A widely used PWM controller with similar functions.
2. NCP1200: Offers similar operational characteristics and applications.
3. SG6848: Another PWM controller with comparable features.
4. LM2841: Although not a direct equivalent, it serves similar applications with integrated features.
5. MC33063: Offers similar functionality for DC-DC converter applications.
Always verify pin configurations and specifications as they may vary between manufacturers.

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