UC3823ANG4

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-performance PWM Controller
• Package: DIP-16 (Dual In-Line Package with 16 pins)
• Essence: Regulates and controls power supply in various applications
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Input Voltage Range: 8V to 35V
• Output Voltage Range: 0.5V to 30V
• Maximum Duty Cycle: 100%
• Operating Temperature Range: -40°C to +85°C
• Frequency Range: 50kHz to 1MHz
• Output Current: Up to 500mA

Detailed Pin Configuration

1. VREF: Reference voltage input
2. COMP: Error amplifier output
3. FB: Feedback input for regulating output voltage
4. RT/CT: Timing resistor/capacitor connection
5. CT: Timing capacitor connection
6. OSC: Oscillator timing capacitor connection
7. SYNC: Synchronization input
8. GND: Ground
9. VCC: Positive supply voltage
10. DRVH: High-side gate driver output
11. DRVL: Low-side gate driver output
12. CS: Current sense input
13. SS/TR: Soft-start/Shutdown control
14. UVLO: Undervoltage lockout input
15. SD: Shutdown input
16. NC: No connection

Functional Features

• High-performance pulse-width modulation (PWM) controller
• Provides precise regulation of output voltage
• Supports both voltage mode and current mode control
• Adjustable frequency and duty cycle for flexible operation
• Overcurrent protection and thermal shutdown features
• Soft-start function for smooth power-up

Advantages and Disadvantages

Advantages: - High-performance and reliable power management solution - Wide input voltage range allows for versatile applications - Flexible control options with adjustable frequency and duty cycle - Comprehensive protection features ensure system safety

Disadvantages: - Limited output current capability (up to 500mA) - Requires external components for complete power supply design - Not suitable for high-power applications

Working Principles

The UC3823ANG4 is a high-performance PWM controller used in power management applications. It operates by regulating the duty cycle of a switching transistor, which controls the output voltage. The error amplifier compares the feedback voltage with the reference voltage to generate an error signal. This signal is then processed by the pulse-width modulator, which adjusts the duty cycle accordingly. By continuously monitoring and adjusting the duty cycle, the UC3823ANG4 ensures precise regulation of the output voltage.

Detailed Application Field Plans

The UC3823ANG4 is widely used in various power management applications, including but not limited to: 1. Switching Power Supplies 2. DC-DC Converters 3. Battery Chargers 4. LED Lighting Systems 5. Motor Control Circuits

Detailed and Complete Alternative Models

1. UC3823A: Similar functionality with minor differences in specifications
2. UC3843: Higher output current capability (up to 1A)
3. UC3844: Enhanced protection features and wider operating temperature range
4. UC3845: Higher frequency range for faster switching applications
5. UC3854: Integrated power factor correction (PFC) functionality

Note: The above alternative models are from the same manufacturer and share similar pin configurations and working principles.

This entry provides a comprehensive overview of the UC3823ANG4, covering its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.