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MAX253ESA from MAXIM,MAXIM - Dallas Semiconductor

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MAX253ESA

Manufacturer: MAXIM

Transformer Driver for Isolated RS-485 Interface

Partnumber Manufacturer Quantity Availability
MAX253ESA MAXIM 136 In Stock

Description and Introduction

Transformer Driver for Isolated RS-485 Interface The MAX253ESA is a transformer driver manufactured by Maxim Integrated.  

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Package:** 8-SOIC (150mil)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Supply Voltage (V+):** 4.5V to 5.5V  
- **Output Current:** Up to 350mA (peak)  
- **Switching Frequency:** Adjustable (external resistor)  
- **Efficiency:** High efficiency for isolated power supply applications  

### **Descriptions:**  
The MAX253ESA is a monolithic transformer driver designed for isolated power supply applications. It includes an oscillator, a control circuit, and power MOSFET drivers to efficiently drive a center-tapped transformer. It is commonly used in telecommunication, industrial, and medical applications requiring isolated power.  

### **Features:**  
- **Integrated Power MOSFET Drivers**  
- **Adjustable Oscillator Frequency**  
- **Low Power Consumption**  
- **High Output Current Capability (350mA peak)**  
- **Wide Operating Voltage Range (4.5V to 5.5V)**  
- **Thermal Shutdown Protection**  
- **Compact 8-SOIC Package**  

This information is based solely on the provided knowledge base.

Application Scenarios & Design Considerations

Transformer Driver for Isolated RS-485 Interface
Partnumber Manufacturer Quantity Availability
MAX253ESA MAXIM 810 In Stock

Description and Introduction

Transformer Driver for Isolated RS-485 Interface The MAX253ESA is a transformer driver manufactured by Maxim Integrated. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Package:** 8-SOIC (0.154", 3.90mm Width)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Mounting Type:** Surface Mount  
- **Output Type:** Push-Pull  
- **Frequency:** Up to 500kHz  
- **Supply Voltage:** 4.5V to 5.5V  
- **Output Current:** 350mA (Peak)  
- **Duty Cycle:** 50% (Typical)  
- **Applications:** Isolated Power Supplies, Telecom, Industrial  

### **Descriptions:**  
The MAX253ESA is a monolithic transformer driver designed for isolated power supply applications. It provides a push-pull output capable of driving a center-tapped transformer primary. The device operates from a single +5V supply and includes an on-chip oscillator with a fixed 50% duty cycle.  

### **Features:**  
- **High-Efficiency Push-Pull Driver**  
- **On-Chip Oscillator (No External Components Required)**  
- **Low Supply Current (3mA Typical)**  
- **Thermal Shutdown Protection**  
- **Short-Circuit Protection**  
- **Suitable for Flyback and Forward Converters**  
- **Compact SOIC Package for Space-Constrained Applications**  

This information is based solely on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Transformer Driver for Isolated RS-485 Interface
Partnumber Manufacturer Quantity Availability
MAX253ESA MAXIN 60 In Stock

Description and Introduction

Transformer Driver for Isolated RS-485 Interface **Manufacturer:** Maxim Integrated (now part of Analog Devices)  

**Part Number:** MAX253ESA  

### **Specifications:**  
- **Type:** Transformer Driver for Isolated Power Supplies  
- **Operating Voltage Range:** 4.5V to 5.5V  
- **Output Voltage:** Adjustable (depends on external transformer)  
- **Switching Frequency:** 500kHz (typical)  
- **Output Current:** Up to 500mA (peak)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin SOIC (Small Outline Integrated Circuit)  
- **Efficiency:** High (depends on external components)  
- **Primary Features:**  
  - Push-pull transformer driver  
  - Low power consumption  
  - Soft-start capability  
  - Overcurrent protection  

### **Descriptions:**  
The MAX253ESA is a transformer driver designed for isolated power supply applications. It provides a high-frequency signal to drive an external transformer, enabling efficient power conversion in compact designs. It is commonly used in telecom, industrial, and medical applications where isolation is required.  

### **Features:**  
- Push-pull output stage for driving center-tapped transformers  
- Adjustable switching frequency  
- Low quiescent current  
- Built-in soft-start to reduce inrush current  
- Overcurrent protection for enhanced reliability  
- Compact SOIC package for space-constrained designs  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Transformer Driver for Isolated RS-485 Interface

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