TNY278PN
Compact DIP-8B switching regulators for efficient power conversion
Manufacturer： power-integrations
series introduction
# TNY278PN Product Series Introduction
## 1. Overview
The TNY278PN is a highly integrated and efficient product series belonging to the power supply controller family. It is designed to simplify the design process of power supplies while offering excellent performance and reliability. This series is particularly well - suited for a wide range of low - to medium - power applications, providing a cost - effective solution for designers.
## 2. Key Features
### 2.1 High Integration
- The TNY278PN combines a power MOSFET, a controller, and protection features all in a single chip. This high level of integration significantly reduces the number of external components required in a power supply design. For example, in a traditional power supply design, multiple discrete components are needed to perform functions such as power switching, control, and protection. With the TNY278PN, designers can achieve the same functionality with a much simpler circuit layout, saving board space and reducing overall system cost.
- It also includes an on - chip oscillator, which eliminates the need for an external oscillator circuit. This not only simplifies the design but also improves the stability and accuracy of the power supply operation.
### 2.2 Energy Efficiency
- The series features advanced power management techniques that enable high energy efficiency. It operates in a discontinuous conduction mode (DCM) or quasi - resonant (QR) mode, depending on the load conditions. In light - load conditions, the TNY278PN can automatically enter a low - power mode, reducing standby power consumption to a very low level. This makes it an ideal choice for applications where energy efficiency is a critical requirement, such as in consumer electronics and industrial control systems.
- The high - efficiency operation also helps to reduce heat generation, which in turn extends the lifespan of the power supply and other components in the system.
### 2.3 Comprehensive Protection
- Over - current protection (OCP) is built into the TNY278PN. In case of an abnormal increase in current, the device will automatically limit the output current to prevent damage to the power supply and connected components. This protection mechanism ensures the safety and reliability of the system, especially in applications where short - circuits or overloads may occur.
- Over - voltage protection (OVP) is another important feature. If the output voltage exceeds a predefined safe level, the TNY278PN will take action to regulate the voltage and prevent it from causing damage to the load.
- Thermal shutdown protection is also provided. When the temperature of the device exceeds a certain threshold, it will shut down automatically to avoid overheating and potential damage. Once the temperature drops to a safe level, the device can resume normal operation.
### 2.4 Wide Input Voltage Range
The TNY278PN can accept a wide range of input voltages, typically from 85VAC to 265VAC. This wide input voltage range makes it suitable for use in different regions around the world, where the mains voltage may vary. It also provides flexibility in power supply design, allowing the same product to be used in various applications without the need for significant modifications.
## 3. Applications
### 3.1 Consumer Electronics
- In mobile phone chargers, the TNY278PN's high efficiency and small form factor make it an ideal choice. It can convert the AC mains voltage to a suitable DC voltage for charging mobile devices quickly and safely. The comprehensive protection features ensure that the charger and the mobile phone are protected from over - current, over - voltage, and over - temperature conditions.
- It is also used in set - top boxes and smart TVs. These devices require a stable and efficient power supply to operate properly. The TNY278PN can provide the necessary power while meeting the energy - saving requirements of modern consumer electronics
Images for reference
8-CDIP
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