UC2875DWP

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UC2875DWP

IC OFFLINE SW FULL-BRDG 28SOIC

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Spécifications

Package Tube
ProductStatus Active
OutputIsolation Non-Isolated
Topology Full-Bridge
Voltage-StartUp 10.75 V
Voltage-Supply(Vcc/Vdd) 9.5V ~ 20V
DutyCycle 100%
Frequency-Switching 1MHz
FaultProtection Current Limiting
ControlFeatures Frequency Control, Soft Start, Sync
OperatingTemperature -25°C ~ 85°C (TA)
Package/Case 28-SOIC (0.295, 7.50mm Width)
SupplierDevicePackage 28-SOIC

Vue d'ensemble

Description

The UC2875DWP is a high-performance, integrated controller designed for switch-mode power supplies (SMPS). It is part of the UC2875 family, which is optimized for various applications, including AC-DC converters and DC-DC converters.
Key features of the UC2875DWP include:
1. Voltage Mode Control: It utilizes voltage-mode control with a built-in error amplifier, enhancing transient response and stability.
2. Slope Compensation: It incorporates slope compensation to prevent sub-harmonic oscillations in current mode applications.
3. Integrated Functions: The device includes features such as soft-start, leading edge blanking, and programmable frequency for improved performance and design flexibility.
4. Protection Mechanisms: It offers over-voltage protection, under-voltage lockout, and thermal shutdown to ensure safe operation.
5. Package: The UC2875DWP is available in a 16-pin wide dual in-line package (DWP), making it easy to integrate into various designs.
Overall, the UC2875DWP is ideal for designers seeking efficiency, reliability, and compactness in power supply applications.

Features

The UC2875DWP is a PWM (Pulse Width Modulation) controller designed for power supply applications. Key features include:
1. Voltage Regulation: Maintains output voltage with high accuracy.
2. Integrated Functions: Combines multiple functions such as a voltage error amplifier, current sense, and soft-start.
3. High Efficiency: Designed for switch-mode power supplies, promoting efficient power conversion.
4. Wide Input Voltage Range: Supports a broad range of input voltages, making it versatile for various applications.
5. Built-in Protection: Features over-voltage, over-current, and thermal shutdown protection to enhance reliability.
6. Compact Package: Available in an 8-pin DIP (DWP) package, allowing for space-saving designs.
7. Frequency Modulation: Supports frequency modulation to minimize electromagnetic interference (EMI).
8. Adjustable Dead Time: Ensures optimized performance in push-pull configurations.
These features make the UC2875DWP suitable for applications in AC-DC converters, isolated power supplies, and battery chargers.

Package

The UC2875DWP is packaged in a Dual In-Line Package (DIP) with 8 pins. This type of package is designed for easy through-hole mounting on printed circuit boards.

Pinout

The UC2875DWP is a PWM (Pulse Width Modulation) controller used in power supply applications. It features a total of 8 pins. The pin functions are as follows:
1. VREF (Pin 1): Reference voltage output (typically 5V).
2. COMP (Pin 2): Compensation input for loop stability.
3. CSN (Pin 3): Current sense negative input.
4. CSP (Pin 4): Current sense positive input.
5. GND (Pin 5): Ground reference.
6. VC (Pin 6): Control voltage input for PWM operation.
7. RT/CT (Pin 7): Timing resistor/capacitor connection for setting switching frequency.
8. SW (Pin 8): Switch output to drive the external power transistor.
The UC2875DWP is often used in applications such as power converters and offline switch-mode power supplies due to its features like voltage regulation, current limiting, and over-temperature protection.

Manufacturer

The UC2875DWP is manufactured by Texas Instruments (TI), a global semiconductor company headquartered in Dallas, Texas. Texas Instruments specializes in designing and manufacturing a wide range of analog and embedded processing chips. The company serves various industries, including automotive, industrial, communications, and consumer electronics, providing solutions for power management, signal processing, and microcontrollers. Founded in 1930, TI has established itself as a leader in the electronics industry, known for innovation and high-quality products. The UC2875DWP specifically is a high-performance, power supply control IC designed for energy-efficient switching power supplies.

Application

The UC2875DWP is primarily used in power management applications, including switch-mode power supplies (SMPS), battery chargers, and LED drivers. Its features support voltage regulation and control in industrial, consumer electronics, and telecommunications equipment. The device enhances efficiency and stability in power conversion systems, making it suitable for renewable energy applications as well.

Equivalent

The UC2875DWP is a high-performance current mode PWM controller. Equivalent products include:
1. UC3843 - Similar PWM controller but with a different architecture.
2. TL494 - A versatile voltage mode controller.
3. LM5007 - A high voltage step-down controller.
4. SG6845 - Another PWM controller suitable for similar applications.
Always check specific features and specifications to ensure compatibility for your design needs.

Expédition

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Référence des frais d'expédition (DHL/FedEx):

DHL: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 2 à 5 jours ouvrables.

FedEx: Les frais d'expédition varient de 25 à 40 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

UPS: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

TNT: Les frais d'expédition varient de 25 à 65 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

EMS: Les frais d'expédition varient de 30 à 50 $ (0,5 kg), avec un délai de livraison estimé de 7 à 15 jours ouvrables.

Courrier aérien enregistré: Le coût d'expédition est de 2 à 4 $ (0,1 kg), avec un délai de livraison estimé de 5 à 20 jours ouvrables.

Paiements

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