UCC3808AN-1

Product Overview

Category

UCC3808AN-1 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in power management applications.

Characteristics

• Low-power, high-performance voltage mode PWM controller
• Designed for off-line and DC-to-DC converter applications
• Provides precise control of output voltage and current
• Offers protection features such as overvoltage and overcurrent protection

Package

UCC3808AN-1 comes in a small outline integrated circuit (SOIC) package.

Essence

The essence of UCC3808AN-1 lies in its ability to efficiently regulate and control power in various electronic devices.

Packaging/Quantity

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

Specifications

• Input Voltage Range: 7V to 20V
• Output Voltage Range: 0.8V to 18V
• Operating Temperature Range: -40°C to 85°C
• Maximum Duty Cycle: 100%
• Switching Frequency: 50kHz to 1MHz
• Output Current: Up to 500mA

Detailed Pin Configuration

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

Functional Features

• Voltage mode control with adjustable frequency and duty cycle
• Soft-start function for controlled startup
• Overvoltage protection (OVP) and undervoltage lockout (UVLO)
• Overcurrent protection (OCP) with adjustable threshold
• Error amplifier with high gain and low offset voltage

Advantages and Disadvantages

Advantages

• High-performance power management solution
• Precise control of output voltage and current
• Wide input voltage range for versatile applications
• Comprehensive protection features enhance system reliability
• Compact package size for space-constrained designs

Disadvantages

• Limited output current capability compared to some other ICs in the same category
• Requires external timing components for frequency control

Working Principles

UCC3808AN-1 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 then amplified by the internal error amplifier and used to adjust the duty cycle of the power switch output (OUT). By regulating the duty cycle, the IC maintains the desired output voltage and current levels.

Detailed Application Field Plans

UCC3808AN-1 finds extensive application in various power management systems, including: - Switch-mode power supplies (SMPS) - DC-to-DC converters - Battery chargers - LED drivers - Industrial automation equipment - Telecommunications devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to UCC3808AN-1 are: - UCC3808A - UCC3808B - UCC3808D - UCC3808E

These models may have slight variations in specifications or package types, but they serve as suitable alternatives for different design requirements.

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