UCC2893DR

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UCC2893DR

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IC REG CTRLR MULT TOP 16SOIC

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  • メーカー品番 #UCC2893DR

  • データシート UCC2893DR DataSheet

  • パッケージ SOIC-16

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仕様

属性
Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
OutputType Transistor Driver
Function Step-Up/Step-Down
OutputConfiguration Positive, Isolation Capable
Topology Flyback, Forward Converter
NumberofOutputs 1
OutputPhases 1
Voltage-Supply(Vcc/Vdd) 8.5V ~ 16V
Frequency-Switching 250kHz
DutyCycle(Max) 70%
SynchronousRectifier No
ClockSync Yes
ControlFeatures Current Limit, Enable, On Time Control, Ramp, Soft Start
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 16-SOIC (0.154, 3.90mm Width)

概要

Description

The UCC2893DR is a highly integrated PWM (pulse-width modulation) controller from Texas Instruments, designed for high-performance power supply applications. This device is tailored for various isolated and non-isolated DC-DC converters, offering efficiency and precision in power management. Key features include programmable soft start, adjustable current limit, and slope compensation, making it versatile for various power supply designs. It operates with peak current mode control, which enhances the speed and stability of the system. The UCC2893DR also provides comprehensive protection mechanisms, such as overcurrent protection and thermal shutdown, ensuring reliability and robustness in demanding environments. Its wide operating frequency allows for flexibility in design, and the device is housed in an 8-pin SOIC package for convenient integration. It's particularly useful in applications requiring strict regulation and efficiency, such as telecommunications, server power supplies, and industrial power systems.

Equivalent

The UCC2893DR is a Texas Instruments active clamp PWM controller used in power supply applications. Equivalent products from other manufacturers may include:
1. NCP1562 - from ON Semiconductor
2. LM5025 - from Texas Instruments
3. MIC2169 - from Microchip Technology
4. SG6846 - from Fairchild Semiconductor (now part of ON Semiconductor)
These parts offer similar functionalities and can often be used interchangeably, but it's important to check the datasheet for specific application requirements.

Features

The UCC2893DR is a Texas Instruments PWM controller designed primarily for isolated and non-isolated power supply applications. Key features include:
1. High-Performance Control: It supports advanced modulation techniques like active-clamp and phase-shift for efficient power conversion.
2. Wide Input Voltage Range: Capable of handling various input voltages, making it versatile for different power supply designs.
3. Programmable Slope Compensation: Facilitates stability over a wide range of operating conditions.
4. Synchronization Capability: Allows for synchronization with external clock signals for improved system coordination.
5. Soft-Start Functionality: Ensures smooth startup operations to prevent inrush current stress on components.
6. Burst Mode Operation: Enhances efficiency at light loads by reducing switching losses.
7. Adjustable Dead Time Control: Offers flexibility in optimizing switching performance and efficiency.
8. Protection Features: Includes overcurrent, overvoltage, and thermal shutdown protection to ensure reliable operation.
These features make the UCC2893DR suitable for high-efficiency power supply applications in telecommunications, computing, and industrial systems.

Pinout

The UCC2893DR is a Texas Instruments device typically used in active clamp reset PWM (pulse width modulation) controllers for isolated power supply applications. It is available in a 14-pin SOIC package. Here is a brief rundown of its pin functions:
1. RT - Timing resistor pin to set the oscillator frequency.
2. CT - Timing capacitor pin to set the oscillator frequency.
3. SYNC - Input for synchronization to an external clock.
4. COMP - Compensation pin for error amplifier output and loop compensation.
5. FB - Feedback pin for receiving the output voltage feedback signal.
6. CS - Current sense input for cycle-by-cycle current limiting.
7. GND - Ground reference for the device.
8. OUT - Gate driver output for controlling the main switch.
9. VDD - Supply voltage input.
10. PGND - Power ground.
11. NC - No connection.
12. NC - No connection.
13. AUX - Auxiliary gate driver output for controlling the auxiliary switch.
14. VREF - Reference voltage output, typically used for biasing other parts of the circuit.
Please refer to the manufacturer's datasheet for detailed specifications and application information.

Manufacturer

The UCC2893DR is manufactured by Texas Instruments (TI). Texas Instruments is a global technology company that designs and manufactures semiconductors and various integrated circuits. TI is well-known for its analog and embedded processing products, which are used in a wide range of electronic applications across numerous industries, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. Founded in 1930 and headquartered in Dallas, Texas, the company has a long history of innovation and leadership in the semiconductor industry.

Application

The UCC2893DR is a PWM controller primarily used in power supply applications. It is ideal for high-efficiency DC-DC converters, isolated power supplies, and applications requiring active clamp reset. Key areas include telecommunications power systems, server and workstation power supplies, and industrial power solutions. Its features make it suitable for synchronous rectification and high-frequency isolated designs, focusing on achieving high power density and efficiency.

Package

The UCC2893DR is a PWM controller from Texas Instruments, and it comes in the SOIC-8 (Small Outline Integrated Circuit) package type. The "DR" suffix typically indicates this SOIC-8 package with a reel packaging for automated assembly.

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