UCC3807N-1

Product Overview

Category

UCC3807N-1 belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is commonly used in various power supply systems, including switch-mode power supplies (SMPS), battery chargers, and LED drivers.

Characteristics

• High efficiency: The UCC3807N-1 offers high efficiency due to its low-power consumption and optimized design.
• Wide input voltage range: It can operate with a wide input voltage range, making it suitable for different power supply applications.
• Protection features: This IC incorporates various protection features such as overvoltage protection, undervoltage lockout, and thermal shutdown.
• Fast response time: The UCC3807N-1 provides fast response time, ensuring stable and reliable power supply operation.

Package

The UCC3807N-1 is available in a standard 8-pin dual in-line package (DIP), which facilitates easy integration into circuit boards.

Essence

The essence of UCC3807N-1 lies in its ability to efficiently regulate and control power supply systems, ensuring stable and reliable operation.

Packaging/Quantity

The UCC3807N-1 is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 10V to 30V
• Output Voltage Range: 0.8V to 28V
• Maximum Output Current: 500mA
• Operating Temperature Range: -40°C to 85°C
• Switching Frequency: 100kHz to 1MHz
• Supply Voltage: 4.5V to 30V

Detailed Pin Configuration

The UCC3807N-1 has the following pin configuration:

1. VCC: Power supply input
2. GND: Ground reference
3. COMP: Compensation pin for feedback control loop
4. FB: Feedback pin for output voltage regulation
5. CS: Current sense pin for current monitoring
6. RT/CT: Timing components connection pins
7. OUT: Output pin for regulated voltage
8. SS/TR: Soft-start and shutdown control pin

Functional Features

1. Voltage Regulation: The UCC3807N-1 provides precise voltage regulation, ensuring a stable output voltage even under varying load conditions.
2. Current Limiting: It incorporates current limiting functionality to protect the power supply system from excessive current flow.
3. Soft-Start: The soft-start feature allows gradual ramp-up of the output voltage, preventing sudden voltage surges during startup.
4. Shutdown Control: The shutdown pin enables easy on/off control of the power supply system.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption and heat dissipation.
• Wide input voltage range allows flexibility in various applications.
• Protection features enhance system reliability and safety.
• Fast response time ensures stable power supply operation.

Disadvantages

• Limited maximum output current may restrict its use in high-power applications.
• Requires external timing components for proper operation.

Working Principles

The UCC3807N-1 operates based on the principle of pulse width modulation (PWM). It regulates the output voltage by controlling the duty cycle of the switching signal. By adjusting the duty cycle, the IC maintains a constant output voltage despite changes in input voltage or load conditions.

Detailed Application Field Plans

The UCC3807N-1 finds extensive application in the following fields:

1. Switch-mode power supplies (SMPS) for computers, telecommunication equipment, and industrial machinery.
2. Battery chargers for portable devices such as smartphones, tablets, and laptops.
3. LED drivers for lighting applications, including residential, commercial, and automotive lighting systems.

Detailed and Complete Alternative Models

1. UCC3807: Similar to UCC3807N-1 but without the extended temperature range (-40°C to 85°C).
2. UCC3807D-1: Surface mount version of UCC3807N-1 with the same specifications and features.

These alternative models provide similar functionality and can be used as substitutes for the UCC3807N-1 in various applications.

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