UCC284DP-ADJ

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UCC284DP-ADJ

IC REG LIN NEG ADJ 500MA 8-SOIC

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規格

Part Status Active
Output Configuration Negative
Output Type Adjustable
Number of Regulators 1
Voltage - Input (Max) -15V
Voltage - Output (Min/Fixed) -1.25V
Voltage - Output (Max) -15V
Voltage Dropout (Max) 0.5V @ 500mA
Current - Output 500mA
Current - Quiescent (Iq) 250 µA
Control Features Enable
Protection Features Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Base Product Number UCC284

概述

Description

The UCC284DP-ADJ is a high-performance, voltage-mode, pulse-width modulation (PWM) controller designed for use in switch-mode power supplies (SMPS). It features adjustable output voltage, making it versatile for various applications. The device incorporates a robust set of features, including current sense, over-voltage protection, under-voltage lockout, and soft-start capabilities, enhancing reliability and performance.
This controller operates in continuous conduction mode, allowing for efficient energy conversion and regulation. It is suitable for isolated and non-isolated topologies, such as flyback, boost, and buck converters. The UCC284DP-ADJ supports an input voltage range of 10V to 30V and can drive a significant output current, making it ideal for medium to high-power applications.
Additionally, it provides a frequency range up to 500 kHz, enabling smaller transformer and capacitor sizes. The device is housed in a standard 8-pin DIP or SOIC package, facilitating easy integration into designs. Overall, the UCC284DP-ADJ is a reliable choice for engineers looking to implement efficient power supply solutions.

Features

The UCC284DP-ADJ is a high-performance, current-mode PWM (Pulse Width Modulation) controller designed for switch-mode power supplies. Key features include:
1. Adjustable Output Voltage: Supports adjustable output voltage operation for flexibility in design.
2. High Efficiency: Optimized for high efficiency, reducing power loss and improving thermal performance.
3. Integrated Control Functions: Includes features like soft start, leading-edge blanking, and frequency jittering to enhance performance and stability.
4. Wide Input Voltage Range: Operates across a broad input voltage range, accommodating various applications.
5. Built-in Protection: Offers protection features such as over-voltage protection, under-voltage lockout, and current limit to ensure safe operation.
6. Temperature Range: Designed for operation in a wide temperature range, making it suitable for demanding environments.
7. Compact Package: Available in a compact DIP package, facilitating ease of PCB design.
These attributes make the UCC284DP-ADJ a versatile choice for various power management applications.

Package

The UCC284DP-ADJ is packaged in a 16-pin dual in-line package (DIP) form factor. This package type allows for easy handling and prototyping in various electronic applications.

Pinout

The UCC284DP-ADJ is a voltage mode PWM (Pulse Width Modulation) controller designed for power supply applications. It has a total of 8 pins.
The pin configuration and their functions are as follows:
1. VDD: Power supply input.
2. GND: Ground reference.
3. COMP: Compensation node for feedback control.
4. CSN: Current sense input (negative).
5. CSP: Current sense input (positive).
6. RAMP: Ramp input for the PWM comparator.
7. VREF: Reference voltage output.
8. SWITCH: Output to drive the power transistor.
The UCC284DP-ADJ is designed for various applications, including off-line and isolated DC-DC converters. Its adjustable output voltage feature makes it suitable for customized power supply solutions.

Manufacturer

The UCC284DP-ADJ is manufactured by Texas Instruments (TI), a prominent technology company based in the United States. Texas Instruments specializes in semiconductor design and manufacturing, particularly focusing on analog and embedded processing solutions. The company serves various industries, including automotive, communications, consumer electronics, industrial, and computing. Established in 1930, TI is known for its innovative products and extensive portfolio, which includes analog ICs, microcontrollers, and digital signal processors. The UCC284DP-ADJ specifically is a voltage mode PWM controller designed for power supply applications.

Application

The UCC284DP-ADJ is a high-performance voltage mode controller primarily used in power supply applications. Its common application areas include offline power converters, isolated DC-DC converters, and battery chargers. It supports various topologies such as flyback, forward, and push-pull configurations, making it suitable for consumer electronics, industrial automation, and automotive power systems where efficiency and compact design are critical.

Equivalent

The UCC284DP-ADJ is a voltage mode PWM controller. Equivalent products include the TL5001, UC3842, and MC34063. These alternatives offer similar functionalities in voltage regulation applications, but may differ in specific features like frequency, output current, and package types. Always verify compatibility for your specific design requirements.

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