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UC3526DW from UNITROD

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UC3526DW

Manufacturer: UNITROD

Regulating Pulse Width Modulator

Partnumber Manufacturer Quantity Availability
UC3526DW UNITROD 6 In Stock

Description and Introduction

Regulating Pulse Width Modulator The UC3526DW is a high-performance PWM controller manufactured by UNITRODE (now part of Texas Instruments). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** UNITRODE (Texas Instruments)  
- **Part Number:** UC3526DW  
- **Type:** PWM (Pulse Width Modulation) Controller  
- **Package:** SOIC-16 (DW package)  
- **Operating Temperature Range:** Typically -40°C to +85°C  
- **Input Voltage Range:** Up to 40V  
- **Output Drive Capability:** Dual totem-pole outputs (suitable for driving power MOSFETs or bipolar transistors)  
- **Switching Frequency:** Adjustable (typically up to several hundred kHz)  
- **Duty Cycle Range:** Adjustable (typically 0% to 100%)  

### **Descriptions:**  
The UC3526DW is a versatile PWM controller designed for power supply applications, including DC-DC converters, inverters, and motor control. It features precision voltage regulation, soft-start capability, and protection functions such as under-voltage lockout (UVLO) and over-current protection.  

### **Features:**  
- **Dual Output Drivers:** Two independent totem-pole outputs for push-pull or half-bridge configurations.  
- **Adjustable Frequency:** External resistor/capacitor (RT/CT) network sets switching frequency.  
- **Soft-Start Function:** Controlled startup to reduce inrush current.  
- **Error Amplifier:** High-gain op-amp for feedback loop control.  
- **Synchronization Capability:** Can be synchronized to an external clock.  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation only when supply voltage is sufficient.  
- **Current Limiting:** Over-current protection via external sensing.  
- **Dead-Time Control:** Adjustable dead time to prevent shoot-through in bridge circuits.  

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

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