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TOP104YAI

Three-terminal Off-line PWM Switch

Partnumber Manufacturer Quantity Availability
TOP104YAI 104 In Stock

Description and Introduction

Three-terminal Off-line PWM Switch The TOP104YAI is a power management IC (PMIC) manufactured by Texas Instruments.  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage:** Adjustable (depends on configuration)  
- **Output Current:** Up to 4A (depending on thermal conditions)  
- **Switching Frequency:** Adjustable (typically 100kHz to 2.5MHz)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Type:** PowerPAD™ HTSSOP (20-pin)  

### **Descriptions:**  
The TOP104YAI is a high-efficiency, synchronous step-down DC-DC converter designed for industrial, automotive, and consumer applications. It integrates MOSFETs for compact designs and supports a wide input voltage range.  

### **Features:**  
- **Integrated FETs:** Reduces external component count  
- **Adjustable Frequency:** Allows optimization for efficiency vs. size  
- **Wide Input Range:** Suitable for automotive and industrial power supplies  
- **Protection Features:** Overcurrent, overtemperature, and undervoltage lockout (UVLO)  
- **PowerPAD™ Package:** Enhances thermal performance  

For exact application details, refer to the official datasheet from Texas Instruments.

Application Scenarios & Design Considerations

Three-terminal Off-line PWM Switch
Partnumber Manufacturer Quantity Availability
TOP104YAI POWER 1023 In Stock

Description and Introduction

Three-terminal Off-line PWM Switch The TOP104YAI is a power IC manufactured by Power Integrations. It is part of the TOPSwitch family, designed for offline power supply applications.  

### **Specifications:**  
- **Input Voltage Range:** 85 VAC to 265 VAC (universal input)  
- **Output Power:** Up to 7 W (depending on design and conditions)  
- **Switching Frequency:** 132 kHz (fixed)  
- **Efficiency:** High efficiency with integrated PWM controller  
- **Protection Features:** Over-temperature, over-voltage, and over-current protection  
- **Package Type:** TO-220 (through-hole)  

### **Descriptions:**  
The TOP104YAI integrates a high-voltage MOSFET, PWM controller, and protection circuits into a single chip. It is used in offline flyback and buck-boost converters for applications like power adapters, chargers, and auxiliary power supplies.  

### **Features:**  
- Integrated 700 V power MOSFET  
- Auto-restart protection for fault conditions  
- Frequency jittering for reduced EMI  
- Built-in soft-start for reduced inrush current  
- Low standby power consumption  

For detailed application circuits and design guidelines, refer to the official datasheet from Power Integrations.

Application Scenarios & Design Considerations

Three-terminal Off-line PWM Switch

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