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L6221AD from STM,ST Microelectronics

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L6221AD

Manufacturer: STM

QUAD DARLINGTON SWITCH

Partnumber Manufacturer Quantity Availability
L6221AD STM 126 In Stock

Description and Introduction

QUAD DARLINGTON SWITCH The L6221AD is a DMOS driver for three-phase brushless DC motors manufactured by STMicroelectronics (STM).  

### **Specifications:**  
- **Output Current:** Up to 1.5A peak  
- **Supply Voltage Range:** 8V to 52V  
- **Operating Frequency:** Up to 100kHz  
- **Logic Inputs:** TTL/CMOS compatible  
- **Protection Features:**  
  - Thermal shutdown  
  - Undervoltage lockout  
  - Overcurrent protection  
- **Package:** PowerSO20  

### **Descriptions:**  
The L6221AD is designed for driving three-phase brushless DC motors in applications such as printers, scanners, and industrial automation. It integrates power DMOS transistors with a high-efficiency control circuit.  

### **Features:**  
- **Three Half-Bridge Outputs** with independent DMOS transistors  
- **Cross-Conduction Protection**  
- **Synchronous Rectification** for improved efficiency  
- **Programmable Dead Time**  
- **Low Saturation Voltage** for reduced power dissipation  

This information is based on STM's official documentation for the L6221AD.

Application Scenarios & Design Considerations

QUAD DARLINGTON SWITCH
Partnumber Manufacturer Quantity Availability
L6221AD 300 In Stock

Description and Introduction

QUAD DARLINGTON SWITCH The L6221AD is a motor driver IC manufactured by STMicroelectronics. Here are the factual details from Ic-phoenix technical data files:

### **Manufacturer:**  
STMicroelectronics  

### **Specifications:**  
- **Output Current:** Up to 1.5A (peak)  
- **Operating Voltage:** 8V to 52V  
- **Logic Supply Voltage (VCC):** 5V  
- **Number of Outputs:** 2 (Half-Bridge Configuration)  
- **PWM Control:** Yes (Up to 100kHz)  
- **Protection Features:** Thermal shutdown, undervoltage lockout (UVLO), overcurrent protection  
- **Package:** PowerSO-20  

### **Descriptions:**  
The L6221AD is a DMOS dual full-bridge driver designed for motor control applications. It integrates power MOSFETs with a high-efficiency PWM control system, making it suitable for driving brushed DC motors or stepper motors.  

### **Features:**  
- **High Voltage Operation:** Supports up to 52V supply  
- **Low Saturation Voltage:** Reduces power dissipation  
- **Cross-Conduction Protection:** Prevents shoot-through currents  
- **Independent Inputs:** Allows flexible control of each half-bridge  
- **TTL/CMOS Compatible Inputs:** Easy interfacing with microcontrollers  
- **Internal Charge Pump:** Ensures proper high-side gate driving  

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

Application Scenarios & Design Considerations

QUAD DARLINGTON SWITCH
Partnumber Manufacturer Quantity Availability
L6221AD ST 1950 In Stock

Description and Introduction

QUAD DARLINGTON SWITCH The L6221AD is a DMOS driver for three-phase brushless DC motors, manufactured by STMicroelectronics (ST).  

### **Specifications:**  
- **Output Current:** Up to 1.2A (peak)  
- **Supply Voltage:** 8V to 52V  
- **Logic Inputs:** 5V TTL/CMOS compatible  
- **Protection Features:**  
  - Thermal shutdown  
  - Undervoltage lockout  
  - Cross-conduction prevention  
- **Package:** PowerSO20  

### **Descriptions:**  
The L6221AD is designed to drive three-phase brushless DC motors efficiently. It integrates three half-bridge drivers with power DMOS transistors, providing high current capability and low power dissipation.  

### **Features:**  
- **High Efficiency:** Low RDS(on) DMOS outputs  
- **Flexible Control:** Independent inputs for each half-bridge  
- **Built-in Diagnostics:** Fault detection and thermal protection  
- **Wide Voltage Range:** Suitable for various motor applications  
- **Cross-Conduction Prevention:** Ensures safe operation  

This information is based on ST's official documentation for the L6221AD.

Application Scenarios & Design Considerations

QUAD DARLINGTON SWITCH

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