TNY285PG

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TNY285PG

+BOM

IC OFFLINE SWITCH FLYBACK 8DIP

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Specifications

Attribute Value
Package / Case Tube
Series TinySwitch®-4
Part Status Active
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 725V
Topology Flyback
Duty Cycle 67%
Frequency - Switching 124kHz ~ 140kHz
Power (Watts) 8.5 W
Fault Protection Current Limiting, Open Loop, Over Temperature, Over Voltage, Short Circuit
Control Features EN
Operating Temperature -40°C ~ 150°C (TJ)
Supplier Device Package 8-PDIP-C

Overview

Description

The TNY285PG is a member of Power Integrations' TinySwitch-III family, which are energy-efficient switch-mode power supply ICs. These integrated circuits incorporate a high-voltage power MOSFET, an oscillator, a high-voltage switched current source, current limit, and thermal shutdown circuitry for fault protection. Designed for use in low-power applications, TNY285PG is typically utilized in adapters, chargers, and LED drivers. It supports universal input voltage, allowing it to operate in a wide range of environments globally.
One of the key features of the TNY285PG is its EcoSmart™ technology, which helps minimize energy consumption during standby operation, enabling power supplies to meet stringent energy efficiency standards like Energy Star. The device also offers robust safety and reliability features, including auto-restart, hysteretic thermal shutdown, and output over-current protection, which enhance its operational dependability. The compact DIP-8 package makes it suitable for applications where space is limited. Overall, the TNY285PG offers a cost-effective and reliable solution for designing power supplies with low standby power consumption.

Equivalent

The TNY285PG is a member of the TinySwitch-4 family by Power Integrations, designed for low power offline switcher applications. Equivalent products might include other models within the TinySwitch-4 series, like the TNY284 or TNY286, depending on specific voltage and power requirements. For similar functionality from other manufacturers, look for low-power offline switchers with integrated MOSFETs, such as ON Semiconductor's NCP1014 series or LinkSwitch-TN by Power Integrations. Always check the specifications to ensure compatibility.

Features

The TNY285PG is a part of the TinySwitch-III series from Power Integrations. It is an energy-efficient, off-line switcher integrated circuit used primarily for power supply designs. Key features include:
1. Integrated Power MOSFET: Reduces external component count and simplifies design.
2. EcoSmart Technology: Minimizes standby energy consumption, improving efficiency.
3. Wide Input Voltage Range: Supports 85 to 265 VAC, making it suitable for global applications.
4. Output Power Capability: Supports up to 23 W for open-frame designs.
5. Frequency Jittering: Reduces EMI, aiding in compliance with international standards.
6. Overload Protection: Includes auto-restart to protect against faults like short circuits.
7. Thermal Shutdown: Protects the device from overheating by shutting down when temperature limits are exceeded.
8. Undervoltage Lockout: Prevents operation at low input voltages to ensure safe performance.
9. Programmable Current Limit: Allows customization for different applications.
These features make the TNY285PG suitable for applications such as chargers, adapters, and power supplies for small electronics.

Pinout

The TNY285PG is an integrated circuit from Power Integrations' TinySwitch-III family. It is designed for high-efficiency, off-line switch-mode power supplies. The package typically used for the TNY285PG is an 8-pin DIP (Dual In-line Package). Here's a brief overview of its pin functions:
1. BP/M: Provides connection to an external bypass capacitor for the internal regulator and sets the line-under voltage threshold.
2. S: Source pin, connected to the primary side circuit common and heat sink.
3. D: Drain pin, connected to the primary winding of the transformer.
4. EN/UV: Enable and under-voltage pin. It controls the output state and senses line under-voltage conditions.
5. No Connection: Some pins are reserved and not internally connected, ensuring electrical spacing.
6-8. Additional Source Pins: These are internally connected to the source pin to aid in heat dissipation.
The TNY285PG provides high efficiency and reliable performance by integrating advanced switching and control functions, making it suitable for applications in small power supplies.

Manufacturer

The TNY285PG is manufactured by Power Integrations, Inc. This company specializes in the development and sale of high-performance electronic components used in high-voltage power conversion systems. Power Integrations is known for its innovative solutions in power supply systems, particularly for applications in consumer electronics, communications, computing, and industrial sectors. Their products are designed to enhance energy efficiency and reduce the overall size and cost of power supplies. The TNY285PG, part of their TinySwitch™ series, is typically used in compact, energy-efficient power supplies and adapters.

Application

The TNY285PG is a high-performance, energy-efficient AC-DC converter IC commonly used in various applications. Its primary application areas include power supplies for consumer electronics like chargers and adapters, smart home devices, and LED lighting. It is also utilized in industrial controls, household appliances, and auxiliary power supplies for appliances and electronics. The TNY285PG excels in applications that require low standby power consumption and excellent load regulation. Its integrated design simplifies circuitry and reduces the overall component count, making it suitable for compact and cost-sensitive designs.

Package

The TNY285PG is a Power Integrations TinySwitch-III series integrated circuit typically housed in a DIP-8 (Dual In-line Package with 8 pins) package. This package type is designed for through-hole mounting on printed circuit boards.

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