IC Phoenix logo

Home ›  M  › M134 > MIC38HC43BN

MIC38HC43BN from MICREL

Fast Delivery, Competitive Price @IC-phoenix

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

MIC38HC43BN

Manufacturer: MICREL

BiCMOS 1A Current-Mode PWM Controllers

Partnumber Manufacturer Quantity Availability
MIC38HC43BN MICREL 726 In Stock

Description and Introduction

BiCMOS 1A Current-Mode PWM Controllers **Enhance Your Power Supply Designs with the MIC38HC43BN PWM Controller**  

The MIC38HC43BN is a high-performance pulse-width modulation (PWM) controller designed to optimize power supply efficiency and reliability in a wide range of applications. Engineered for precision and versatility, this component is an excellent choice for designers seeking robust control in switch-mode power supplies (SMPS), DC-DC converters, and offline power systems.  

Featuring a fixed-frequency current-mode architecture, the MIC38HC43BN delivers superior noise immunity and stable operation under varying load conditions. Its integrated under-voltage lockout (UVLO) ensures safe startup and shutdown, while programmable soft-start functionality minimizes inrush currents, extending the lifespan of connected components.  

With an operating frequency of up to 1MHz, this PWM controller supports both forward and flyback converter topologies, making it adaptable to diverse design requirements. The device includes a high-current totem-pole output stage capable of driving power MOSFETs and IGBTs efficiently, reducing switching losses and improving overall system performance.  

Key benefits of the MIC38HC43BN include:  
- **Precision Control:** Accurate duty cycle regulation enhances power supply stability.  
- **Wide Input Range:** Supports operation from 8V to 35V, accommodating various power sources.  
- **Protection Features:** Built-in overcurrent and thermal shutdown safeguards ensure system durability.  

Whether used in industrial automation, telecommunications, or consumer electronics, the MIC38HC43BN provides a reliable foundation for efficient power management. Its compact SOIC-8 package simplifies board integration, making it a practical solution for space-constrained applications.  

For engineers focused on optimizing power conversion efficiency without compromising reliability, the MIC38HC43BN stands out as a dependable and high-performance PWM controller.

Application Scenarios & Design Considerations

BiCMOS 1A Current-Mode PWM Controllers

Alternative Part Number

  • UC3843AN --: Industry-standard current-mode PWM controller in the same family and pinout, widely available and a direct functional replacement for the MIC38HC43BN.
  • SG3843N --: Equivalent current-mode PWM controller with matching electrical characteristics and DIP-8 package, suitable as a drop-in alternative.
  • TL3843P --: Pin-compatible current-mode PWM controller offering similar performance and a cost-effective second-source option.

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