UCC3895DWTR

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-performance PWM Controller
• Package: SOIC-16
• Essence: Control and regulation of power supply systems
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 10V to 20V
• Output Voltage Range: 0V to 15V
• Operating Temperature Range: -40°C to +85°C
• Switching Frequency: 100kHz to 1MHz
• Duty Cycle Range: 0% to 100%
• Maximum Output Current: 2A

Detailed Pin Configuration

1. VREF: Reference voltage input
2. COMP: Error amplifier output
3. FB: Feedback voltage input
4. CS: Current sense input
5. RT/CT: Timing components for oscillator frequency control
6. GND: Ground
7. SS/TR: Soft-start and tracking control
8. VDD: Positive power supply input
9. SYNC: Synchronization input
10. OUT: Output voltage
11. UVLO: Under-voltage lockout
12. EN: Enable control
13. NC: No connection
14. NC: No connection
15. NC: No connection
16. NC: No connection

Functional Features

• High-performance pulse-width modulation (PWM) controller
• Wide input voltage range for versatile applications
• Adjustable output voltage and duty cycle for flexibility
• Precise current sensing for accurate regulation
• Soft-start and tracking control for smooth power-up
• Synchronization capability for multi-phase operation
• Under-voltage lockout protection for system reliability

Advantages and Disadvantages

Advantages: - High-performance and reliable power management solution - Wide input voltage range allows for various power supply systems - Adjustable output voltage and duty cycle provide flexibility in design - Precise current sensing ensures accurate regulation

Disadvantages: - Limited maximum output current of 2A may not be suitable for high-power applications - Requires external timing components for oscillator frequency control

Working Principles

The UCC3895DWTR is a high-performance PWM controller designed for power management applications. It operates by regulating the duty cycle of the output voltage based on feedback from the error amplifier. The input voltage range, output voltage, and duty cycle can be adjusted to meet specific requirements. The device incorporates features such as soft-start, tracking control, and synchronization capability to enhance system performance and reliability. Under-voltage lockout protection ensures safe operation.

Detailed Application Field Plans

The UCC3895DWTR is commonly used in various power management applications, including: 1. Switching Power Supplies 2. DC-DC Converters 3. Battery Chargers 4. LED Drivers 5. Motor Control Systems

Detailed and Complete Alternative Models

1. UCC3895DW: Similar specifications and pin configuration, but available in a different package (PDIP-16).
2. UCC3895D: Lower maximum output current (1.5A) but otherwise similar specifications and features.
3. UCC3895: Non-RoHS compliant version with the same specifications and features.

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