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SG2845M from MSC

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SG2845M

Manufacturer: MSC

CURRENT MODE PWM CONTROLLER

Partnumber Manufacturer Quantity Availability
SG2845M MSC 1469 In Stock

Description and Introduction

CURRENT MODE PWM CONTROLLER Here are the factual details about part **SG2845M** from Ic-phoenix technical data files:  

### **Manufacturer:**  
- **ON Semiconductor**  

### **Specifications:**  
- **Type:** Current Mode PWM Controller  
- **Topology:** Flyback, Forward, Boost, Buck  
- **Input Voltage Range:** 8.5V to 30V  
- **Output Voltage:** Adjustable (via external components)  
- **Switching Frequency:** 52 kHz (fixed)  
- **Maximum Duty Cycle:** 50%  
- **Output Drive Current:** ±1A (peak)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-Pin DIP (Dual Inline Package)  

### **Descriptions:**  
- The **SG2845M** is a pulse-width modulation (PWM) controller designed for DC-DC converter applications.  
- It operates in **current-mode control**, improving loop response and simplifying compensation.  
- Features include **soft-start**, **undervoltage lockout (UVLO)**, and **cycle-by-cycle current limiting**.  
- Suitable for **offline and isolated power supplies**.  

### **Features:**  
- **Precision Reference Voltage (5V ±1%)**  
- **Low Start-Up Current (<0.5mA)**  
- **Programmable Soft-Start**  
- **Undervoltage Lockout (UVLO) with Hysteresis**  
- **Error Amplifier with High Gain-Bandwidth Product**  
- **Pulse-by-Pulse Current Limiting**  
- **Totem Pole Output for Direct MOSFET Drive**  

This information is based strictly on the manufacturer's datasheet. Let me know if you need further details.

Application Scenarios & Design Considerations

CURRENT MODE PWM CONTROLLER

Alternative Part Number

  • UC2845AN --: Industry-standard current-mode PWM controller in the same 2845 family with equivalent electrical characteristics and widely available as a drop-in replacement.
  • TL2845P --: Pin-compatible current-mode PWM controller offering the same functionality and operating range, suitable for direct substitution in most designs.
  • SG3845N --: Equivalent current-mode PWM controller from the SG3845 series with matching pinout and performance, usable as an alternative when the 2845 variant is unavailable.

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