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MAX253ESA-T from MAXIM,MAXIM - Dallas Semiconductor

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MAX253ESA-T

Manufacturer: MAXIM

1W Primary-Side Transformer H-Bridge Driver for Isolated Supplies

Partnumber Manufacturer Quantity Availability
MAX253ESA-T,MAX253ESAT MAXIM 643 In Stock

Description and Introduction

1W Primary-Side Transformer H-Bridge Driver for Isolated Supplies **Manufacturer:** MAXIM (now part of Analog Devices)  

**Part Number:** MAX253ESA-T  

### **Specifications:**  
- **Type:** Transformer Driver  
- **Operating Voltage Range:** 4.5V to 5.5V  
- **Output Voltage:** Up to ±40V (transformer-dependent)  
- **Output Frequency:** Adjustable (typically 100kHz to 500kHz)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-SOIC (150mil)  
- **Current Consumption:** 5mA (typical)  
- **Duty Cycle:** 50% (fixed)  
- **Primary Current Limit:** Adjustable  

### **Descriptions:**  
The MAX253ESA-T is a monolithic transformer driver designed for isolated power supply applications. It generates a high-voltage output using an external transformer, making it suitable for telecommunication, industrial, and medical systems requiring galvanic isolation.  

### **Features:**  
- Single 5V supply operation  
- Adjustable switching frequency  
- Push-pull output drive  
- Adjustable primary current limit  
- Low-power shutdown mode  
- Thermal shutdown protection  
- Small 8-pin SOIC package  

This device is commonly used in isolated DC-DC converters, RS-485/RS-422 interfaces, and isolated sensor power supplies.

Application Scenarios & Design Considerations

1W Primary-Side Transformer H-Bridge Driver for Isolated Supplies

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