IC Phoenix logo

Home ›  U  › U7 > UC3842BD1R2

UC3842BD1R2 from MOT,Motorola

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

UC3842BD1R2

Manufacturer: MOT

High Performance Current Mode Controllers

Partnumber Manufacturer Quantity Availability
UC3842BD1R2 MOT 3543 In Stock

Description and Introduction

High Performance Current Mode Controllers The UC3842BD1R2 is a current-mode PWM controller manufactured by Motorola (MOT). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Manufacturer:**  
- **MOT (Motorola)**  

### **Specifications:**  
- **Type:** Current-Mode PWM Controller  
- **Topology:** Flyback, Forward, Boost, Buck  
- **Switching Frequency:** Up to 500 kHz  
- **Output Drive Current:** 1A (Peak)  
- **Supply Voltage (VCC):** 30V (Max)  
- **Duty Cycle:** 0% to 100% (Adjustable)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
- The UC3842BD1R2 is a high-performance fixed-frequency current-mode PWM controller.  
- Designed for DC-DC converter applications, it provides precise regulation and protection features.  
- Includes an under-voltage lockout (UVLO) feature for controlled startup.  

### **Features:**  
- **Current-Mode Operation:** Improves loop response and simplifies compensation.  
- **Automatic Feed-Forward Compensation:** Enhances line regulation.  
- **Latching PWM for Cycle-by-Cycle Current Limiting:** Protects against overloads.  
- **Internal Trimmed Bandgap Reference:** Ensures stable voltage regulation.  
- **Low Startup Current (≤ 1mA):** Reduces power consumption during startup.  
- **High-Current Totem Pole Output:** Directly drives power MOSFETs.  

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

Application Scenarios & Design Considerations

High Performance Current Mode Controllers
Partnumber Manufacturer Quantity Availability
UC3842BD1R2 ON 1549 In Stock

Description and Introduction

High Performance Current Mode Controllers The **UC3842BD1R2** is a current-mode PWM controller manufactured by **ON Semiconductor**. Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**
- **Manufacturer:** ON Semiconductor  
- **Type:** Current-Mode PWM Controller  
- **Topology:** Flyback, Forward, Boost, Buck  
- **Output Configuration:** Single-Ended  
- **Switching Frequency:** Up to 500 kHz  
- **Duty Cycle Max:** 100%  
- **Supply Voltage (VCC):** 8V to 30V  
- **Start-Up Voltage:** 16V (typical)  
- **UVLO (Undervoltage Lockout):** On: 16V (typ), Off: 10V (typ)  
- **Output Current (Source/Sink):** 1A (peak)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**
- The **UC3842BD1R2** is a high-performance fixed-frequency current-mode PWM controller.  
- It is designed for DC-DC converter and offline power supply applications.  
- Features include precise duty cycle control, current sensing, and thermal shutdown protection.  
- Suitable for flyback, forward, and boost converter designs.  

### **Features:**
- **Current-Mode Operation:** Provides cycle-by-cycle current limiting.  
- **Automatic Feed-Forward Compensation:** Simplifies loop stabilization.  
- **Internal Trimmed Oscillator:** Ensures accurate frequency control.  
- **Latching PWM:** Prevents multiple pulses during fault conditions.  
- **Undervoltage Lockout (UVLO):** Ensures proper start-up and shutdown.  
- **High-Current Totem Pole Output:** Directly drives power MOSFETs.  
- **Low Start-Up & Operating Current:** Improves efficiency.  

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

Application Scenarios & Design Considerations

High Performance Current Mode Controllers
Partnumber Manufacturer Quantity Availability
UC3842BD1R2 MOTOROLA 2537 In Stock

Description and Introduction

High Performance Current Mode Controllers The UC3842BD1R2 is a high-performance current-mode PWM controller manufactured by Motorola. Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**  
- **Manufacturer:** Motorola  
- **Part Number:** UC3842BD1R2  
- **Type:** Current-Mode PWM Controller  
- **Package:** SOIC-8  
- **Operating Temperature Range:** -40°C to +85°C  
- **Input Voltage (VCC):** 16V (max)  
- **Output Current (Gate Drive):** ±1A (peak)  
- **Switching Frequency:** Up to 500kHz  
- **Duty Cycle Range:** 0% to 100%  
- **Reference Voltage:** 5V (±1%)  
- **Start-Up Current:** <1mA  
- **UVLO (Undervoltage Lockout):** On: 16V (typ), Off: 10V (typ)  

### **Descriptions:**  
The UC3842BD1R2 is a fixed-frequency pulse-width modulation (PWM) controller designed for DC-DC converter and offline power supply applications. It operates in current-mode control, providing precise regulation and improved loop response. The device includes an oscillator, error amplifier, current-sensing comparator, and a high-current totem-pole output for driving power MOSFETs.  

### **Features:**  
- **Current-Mode Operation:** Improves transient response and simplifies loop compensation.  
- **Automatic Feed-Forward Compensation:** Enhances line regulation.  
- **Latching PWM:** Ensures single-pulse operation per cycle.  
- **Internal Trimmed Reference:** 5V with ±1% accuracy.  
- **Undervoltage Lockout (UVLO):** Ensures proper start-up and shutdown.  
- **High-Current Totem-Pole Output:** Directly drives MOSFETs with ±1A peak current.  
- **Low Start-Up Current:** <1mA for efficient power-up.  
- **Programmable Oscillator:** Allows frequency adjustment with external components.  

This information is based solely on Motorola's specifications for the UC3842BD1R2.

Application Scenarios & Design Considerations

High Performance Current Mode Controllers

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips