UCC3889DTR

Product Overview

Category

UCC3889DTR belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for power management and control applications.

Characteristics

• UCC3889DTR is a high-performance voltage mode controller.
• It offers excellent regulation and transient response.
• The device operates over a wide input voltage range.
• It provides various protection features such as overvoltage and overcurrent protection.

Package

UCC3889DTR is available in a small outline package (SOP) with 8 pins.

Essence

The essence of UCC3889DTR lies in its ability to efficiently regulate and control voltage in electronic devices, ensuring stable and reliable operation.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 4.5V to 28V
• Output Voltage Range: 0.8V to 5.5V
• Maximum Output Current: 10A
• Switching Frequency: 500kHz
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin for voltage regulation
4. COMP: Compensation pin for stability control
5. EN: Enable pin for device activation
6. SS/TR: Soft-start/Tracking pin for controlled startup
7. VCC: Supply voltage pin
8. SW: Switching node pin for power transfer

Functional Features

• Voltage mode control for precise regulation
• Adjustable output voltage through feedback pin
• Soft-start function for controlled startup
• Overvoltage protection to prevent damage
• Overcurrent protection for safe operation
• Error amplifier for accurate voltage regulation

Advantages and Disadvantages

Advantages

• Excellent regulation and transient response
• Wide input voltage range for versatile applications
• Compact package size for space-constrained designs
• Comprehensive protection features ensure device safety

Disadvantages

• Limited maximum output current of 10A
• Higher switching frequency may require additional filtering components

Working Principles

UCC3889DTR operates based on the voltage mode control principle. It compares the feedback voltage with a reference voltage to generate an error signal. This error signal is then amplified and used to adjust the duty cycle of the internal power switch, regulating the output voltage. The soft-start function ensures a controlled startup, while the various protection features safeguard against overvoltage and overcurrent conditions.

Detailed Application Field Plans

UCC3889DTR finds application in various electronic devices requiring efficient power management and control. Some specific application fields include: 1. Switching power supplies 2. DC-DC converters 3. Voltage regulators 4. Battery charging circuits 5. Industrial automation systems

Detailed and Complete Alternative Models

1. UCC3895DTR: Similar voltage mode controller with higher maximum output current of 15A.
2. UCC3809DTR: Voltage mode controller with lower maximum output current of 5A but lower cost.
3. UCC2897ADW: Advanced voltage mode controller with integrated MOSFET drivers for higher power applications.

(Note: These alternative models are provided as examples and may have different specifications and pin configurations. Refer to respective datasheets for detailed information.)

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