TNY255PN

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - Low power consumption - High efficiency - Compact size - Wide input voltage range - Built-in protection features

Package: DIP-8 (Dual In-line Package)

Essence: TNY255PN is a power management IC designed for low power applications. It provides efficient power conversion and includes various protection features.

Packaging/Quantity: TNY255PN is typically sold in reels or tubes, with each reel/tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 85V - 265V AC
• Output Voltage: Varies based on application
• Maximum Output Current: Varies based on application
• Operating Temperature Range: -40°C to +150°C
• Package Type: DIP-8
• Pin Count: 8

Detailed Pin Configuration

1. VDD: Power supply input
2. Drain: Switching transistor drain connection
3. Sense: Feedback pin for output voltage regulation
4. GND: Ground reference
5. Source: Switching transistor source connection
6. FB: Feedback pin for current limit regulation
7. BP/M: Bypass/Multifunction pin
8. SYNC: Synchronization input for multiple ICs

Functional Features

• Primary-side control for simplified design
• Auto-restart protection for fault conditions
• Frequency jittering for reduced EMI emissions
• Built-in current limit and thermal shutdown protection
• Soft-start for controlled startup

Advantages

• High efficiency power conversion
• Compact size suitable for space-constrained applications
• Wide input voltage range allows for versatile use
• Built-in protection features enhance system reliability
• Primary-side control simplifies circuit design

Disadvantages

• Limited output current capability
• Requires external components for complete power supply implementation
• Not suitable for high-power applications

Working Principles

TNY255PN utilizes primary-side control to regulate the output voltage. It operates by modulating the duty cycle of the switching transistor based on feedback signals from the sense and FB pins. The IC incorporates various protection features such as auto-restart, current limit, and thermal shutdown to ensure safe operation.

Detailed Application Field Plans

TNY255PN is commonly used in low power applications that require efficient power management. Some typical application fields include:

1. Consumer Electronics: Power supplies for small appliances, set-top boxes, and audio/video equipment.
2. LED Lighting: LED driver circuits for residential and commercial lighting applications.
3. Industrial Automation: Power supplies for control systems, sensors, and actuators.
4. Home Automation: Power management for smart home devices and systems.
5. Automotive Electronics: Low power automotive applications such as infotainment systems and interior lighting.

Detailed and Complete Alternative Models

1. TNY254PN: Similar functionality with a lower input voltage range.
2. TNY256PN: Similar functionality with a higher output current capability.
3. TNY257PN: Similar functionality with additional features such as frequency synchronization.

Note: This is not an exhaustive list, and there may be other alternative models available from different manufacturers.

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