TNY288DG

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TNY288DG

+BOM

IC OFFLINE SWITCH FLYBACK 8SO

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Specifications

Attribute Value
Series TinySwitch®-4
PartStatus Discontinued at Digi-Key
OutputIsolation Isolated
InternalSwitch(s) Yes
Voltage-Breakdown 725V
Topology Flyback
DutyCycle 67%
Frequency-Switching 124kHz ~ 140kHz
Power(Watts) 14.5 W
FaultProtection Current Limiting, Open Loop, Over Temperature, Over Voltage, Short Circuit
ControlFeatures EN
OperatingTemperature -40°C ~ 150°C (TJ)
Package/Case 8-SOIC (0.154", 3.90mm Width), 7 Leads
SupplierDevicePackage SO-8C
MountingType Surface Mount
BaseProductNumber TNY288

Overview

Description

The TNY288DG is a highly integrated power supply controller designed for low-power applications such as adapters, chargers, and compact power supplies. It belongs to the TinySwitch series from Power Integrations, featuring a compact design that simplifies the circuit layout. The TNY288DG operates in a quasi-resonant mode, enhancing efficiency and reducing electromagnetic interference (EMI).
With an input voltage range of 85-265VAC, it supports universal mains, making it suitable for global applications. The device can deliver up to 5 watts of output power, making it ideal for powering small electronic devices. It includes built-in features such as over-temperature protection, overload protection, and short-circuit protection, ensuring reliable operation and safety.
Additionally, the TNY288DG integrates a high-voltage startup circuit, eliminating the need for an external component, thus minimizing component count and PCB space. Its ability to provide excellent regulation and efficiency at low standby power makes it a popular choice in energy-conscious designs.

Equivalent

The TNY288DG chip is a part of the TinySwitch family from Power Integrations, primarily used for power supply applications. Equivalent products include the TNY288, TNY289, TNY290, and other variants like TNY287DG depending on specific output power and voltage requirements. For direct substitutes, consider other TinySwitch series devices with similar specifications, but always verify pin compatibility and electrical characteristics.

Features

The TNY288DG is a highly efficient integrated circuit designed for offline power supply applications. Key features include:
1. High Voltage Start-Up: It operates directly from the AC line voltage, eliminating the need for an external start-up resistor.

2. Integrated PWM Controller: Supports constant voltage and constant current outputs with low ripple.
3. Low Standby Power Consumption: Designed for energy efficiency, it minimizes power loss during idle conditions.
4. Broad Input Voltage Range: Accommodates a wide range of input voltages, typically from 85V to 265V AC.
5. Thermal Shutdown: Includes built-in protection against overheating.
6. Over-Voltage and Short-Circuit Protection: Provides safety features to prevent damage during fault conditions.
7. Small Footprint: Available in a compact DIP-8 package, making it suitable for space-constrained designs.
8. Ease of Use: Simplifies design with minimal external components required.
These features make the TNY288DG ideal for applications like adapters, chargers, and LED lighting.

Pinout

The TNY288DG is a member of the TinySwitch-III family of integrated circuits (ICs) designed for switch-mode power supply (SMPS) applications. It features a total of 8 pins with the following functions:
1. Pin 1 (DRAIN): Connects to the drain of the external MOSFET.
2. Pin 2 (SOURCE): Ground reference for the IC and connects to the source of the external MOSFET.
3. Pin 3 (GND): Ground pin of the IC.
4. Pin 4 (VDD): Supplies power to the IC.
5. Pin 5 (COMP): Compensation pin for feedback control.
6. Pin 6 (SENSE): Connects to the current sense resistor for overcurrent protection.
7. Pin 7 (CTRL): Feedback control input for regulating output voltage.
8. Pin 8 (RAMP): Connects to a capacitor for frequency modulation.
The TNY288DG is suitable for low-power applications, providing benefits like high efficiency and simple design.

Manufacturer

The TNY288DG is manufactured by Power Integrations, Inc., a leading company in the field of power management technology. Power Integrations specializes in designing and developing high-performance electronic components and systems for power conversion. Their products are widely used in various applications, including consumer electronics, industrial equipment, and renewable energy systems. The company focuses on creating energy-efficient solutions that help reduce energy consumption and improve reliability in power supplies. Power Integrations is known for its innovative approach, providing integrated circuits that simplify the design and enhance the performance of power supplies.

Application

The TNY288DG is a highly integrated power IC used primarily in compact switch-mode power supplies (SMPS) for low to medium power applications. Key application areas include:
1. Adapters and Chargers: For smartphones, tablets, and other consumer electronics.
2. LED Drivers: Powering LED lighting solutions.
3. Home Appliances: Providing efficient power supply for devices like microwaves and refrigerators.
4. Industrial Equipment: Used in control systems and automation devices.
5. Telecommunications: Powering networking and communication devices.
Its compact size and high efficiency make it suitable for space-constrained designs.

Package

The TNY288DG is packaged in a small, surface-mount DIP-8 (Dual In-line Package, 8 pins) format. This compact package design is ideal for space-constrained applications while providing efficient thermal performance.

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