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MIC38HC44BN from MICREL

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MIC38HC44BN

Manufacturer: MICREL, MICREL

BiCMOS 1A Current-Mode PWM Controllers

Partnumber Manufacturer Quantity Availability
MIC38HC44BN MICREL, MICREL 56 In Stock

Description and Introduction

BiCMOS 1A Current-Mode PWM Controllers **Enhance Your Power Management with the MIC38HC44BN PWM Controller**  

The MIC38HC44BN is a high-performance pulse-width modulation (PWM) controller designed to optimize power supply efficiency and reliability in a wide range of applications. This versatile IC integrates advanced control features, making it an excellent choice for switch-mode power supplies (SMPS), DC-DC converters, and industrial power systems.  

Engineered for precision, the MIC38HC44BN operates at a fixed frequency of up to 1MHz, ensuring stable and efficient power conversion. Its current-mode control architecture enhances transient response and simplifies loop compensation, reducing design complexity while improving performance. The device includes built-in protections such as undervoltage lockout (UVLO), cycle-by-cycle current limiting, and a programmable soft-start function, safeguarding both the controller and downstream components.  

With a robust 1A totem-pole output stage, the MIC38HC44BN efficiently drives power MOSFETs or IGBTs, minimizing switching losses and maximizing system efficiency. Its wide input voltage range (up to 30V) and low standby current consumption make it suitable for both line-powered and battery-operated applications.  

For designers seeking flexibility, the MIC38HC44BN offers adjustable dead-time control and synchronization capabilities, allowing seamless integration into multi-phase or synchronized power systems. Its compact 8-pin DIP package ensures ease of implementation while maintaining thermal performance.  

Whether used in telecom infrastructure, industrial automation, or consumer electronics, the MIC38HC44BN delivers reliable, high-efficiency power management. Its combination of precision control, protection features, and design flexibility makes it a dependable solution for modern power supply challenges.  

For engineers looking to enhance power conversion efficiency and system reliability, the MIC38HC44BN stands out as a high-performance PWM controller that meets demanding application requirements.

Application Scenarios & Design Considerations

BiCMOS 1A Current-Mode PWM Controllers

Alternative Part Number

  • UC3844N --: Industry-standard current-mode PWM controller in the same family and DIP-8 package, widely available and functionally equivalent to the MIC38HC44.
  • SG3844N --: Pin-compatible current-mode PWM controller with similar UVLO and duty-cycle characteristics, suitable direct replacement in DIP-8.
  • TL3844P --: Equivalent 3844-series current-mode controller offering comparable performance and pinout for the MIC38HC44BN.

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