UCC3807D-3G4

Product Overview

Category

UCC3807D-3G4 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power management applications.

Characteristics

• High efficiency
• Low standby power consumption
• Wide input voltage range
• Adjustable output voltage
• Overcurrent protection
• Thermal shutdown protection

Package

UCC3807D-3G4 is available in a small outline package (SOP) with 8 pins.

Essence

The essence of UCC3807D-3G4 lies in its ability to efficiently regulate and control power in various electronic devices.

Packaging/Quantity

This IC is typically sold in reels or tubes, with each reel containing approximately 2500 units.

Specifications

• Input Voltage Range: 4.5V to 25V
• Output Voltage Range: 1.23V to 20V
• Maximum Output Current: 500mA
• Operating Temperature Range: -40°C to 85°C
• Switching Frequency: 100kHz to 1MHz
• Quiescent Current: 2.5mA

Detailed Pin Configuration

1. VREF: Reference voltage input
2. COMP: Error amplifier output
3. FB: Feedback pin for output voltage regulation
4. GND: Ground reference
5. CS: Current sense input
6. RT/CT: Timing components connection
7. OUT: Power supply output
8. VIN: Input voltage supply

Functional Features

• Voltage mode control
• Soft-start function
• Cycle-by-cycle current limiting
• Overvoltage protection
• Undervoltage lockout
• Error amplifier with high gain and bandwidth

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power dissipation
• Wide input voltage range allows for versatile applications
• Adjustable output voltage provides flexibility
• Overcurrent and thermal shutdown protection enhance safety

Disadvantages

• Limited maximum output current may not be suitable for high-power applications
• Requires external timing components for operation

Working Principles

UCC3807D-3G4 operates on the principle of voltage mode control. It compares the feedback voltage (FB) with a reference voltage (VREF) to generate an error signal. This error signal is amplified and used to control the duty cycle of the internal power switch, regulating the output voltage. The IC also incorporates various protection mechanisms to ensure safe operation.

Detailed Application Field Plans

UCC3807D-3G4 finds applications in various fields, including: 1. Switching power supplies 2. Battery chargers 3. LED drivers 4. Industrial automation systems 5. Telecommunications equipment

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to UCC3807D-3G4 are: 1. LM2576-ADJ 2. LT1073 3. MC34063A 4. TPS5430

These models offer similar functionality and can be used as substitutes depending on specific requirements.

In conclusion, UCC3807D-3G4 is a versatile integrated circuit used for power management applications. Its high efficiency, adjustable output voltage, and various protection features make it suitable for a wide range of electronic devices. However, its limited maximum output current and requirement for external timing components should be taken into consideration when selecting this IC for specific applications.