The BCM59111KMLG, developed by Broadcom Inc., represents a cutting-edge solution in the realm of Power over Ethernet (PoE) technology. Compliant with IEEE 802.3at-2009 standards, this highly integrated Power Sourcing Equipment (PSE) controller offers exceptional flexibility and efficiency for PoE and PoE+ applications. In this overview, we'll delve into the key features, advantages, applications, and the manufacturer's commitment to innovation in networking infrastructure.

bcm59111kmlg

BCM59111KMLG Overview

The BCM59111KMLG is a highly integrated Power Sourcing Equipment (PSE) controller compliant with IEEE 802.3at-2009 standards, offering exceptional integration and flexibility. Featuring four low-RDS (0.3552) high-voltage pass-FETs, each equipped with a highly accurate and lossless proprietary internal current sensor, along with an onboard microcontroller, it aims to significantly simplify Power over Ethernet (PoE) and Power over Ethernet Plus (PoE+) designs while streamlining PCB layout.

 

The BCM59111KMLG provides robust protection under all conceivable fault conditions and overloads. Additionally, it supports two-event classification (Type 2, 30W), making it suitable for various applications. With a networking-oriented host interface, it communicates via a 400 kHz Broadcom Serial Control (BsC) bus.

 

BCM59111KMLG Specifications

Feature

Description

IEEE Compliance

IEEE 802.3at-2009 with support for IEEE 802.3af-2003

Classification Support

Two-event classification (Type 2)

Power Capability

Supports 4-pair 60W applications

Legacy PD Detection

Supports detection of legacy Powered Devices (PDs)

Cascading Support

Cascading of multiple devices; supports up to 64 ports

Programmable Parameters

Programmable current (Icur) and luminance (Lum) for Type 1 and Type 2 devices

Bus Architecture

BSC-a Philips I2C-compatible bus architecture

Operating Mode

Manual/Semi-autonomous operating mode

Real-time Measurements

Real-time current, voltage, and temperature measurements available per port

Overtemperature Protection

Overtemperature protection with warning and shutdown mechanisms

Power Supply

Operates from a 48V nominal supply and external 3.3V supply

Firmware Management

Firmware download capability via BSC communication bus from the host

Package Dimensions

7mm x 7mm x 0.9mm QFN-48 package with exposed pad, featuring 0.5mm pitch

 

Advantages of BCM59111KMLG 

  • High Integration: The BCM59111KMLG integrates a 4-port PSE controller with FETs, MCU, and current sense, resulting in a compact design and cost-effectiveness.
  • Compatibility: Supports IEEE 802.3at solutions and emerging PoE++/UPOE solutions, ensuring versatility and future-proofing.
  • Low Thermal Dissipation: With extremely low thermal dissipation, no heat sinks are required, reducing system complexity and cost.
  • UL Certification: UL-certified (QvRO) as a current-limiting device, eliminating the need for port fuses, enhancing safety and reliability.
  • Cost Efficiency: High integration leads to a reduced total bill of materials (BOM), minimizing costs.
  • Ease of Implementation: Simple PCB placement and area savings due to its compact design, along with easy layout and design facilitated by straightforward ground/power plane requirements.
  • Compatibility with Broadcom Products: Works seamlessly with Broadcom PoE-enabled products, ensuring easy integration and interoperability.
  • System-Oriented Features: Designed with system-level differentiation in mind, including a single point of interface for host hardware and software, power management across all ports in cascaded configuration, programmable current limits, dynamic measurement per port, and rapid power-down to support multiple power supply failures.
  • Versatility: Supports a variety of applications including routers, switches for enterprise, SMB, SOHO, and commercial markets, Ethernet midspans, PSE power injectors, and integrated magnetics, catering to diverse networking needs.

 

By offering high integration, compatibility, low thermal dissipation, and a host of system-oriented features, the BCM59111KMLG provides significant advantages and benefits in terms of cost-effectiveness, ease of implementation, and versatility for various networking applications.

 

BCM59111KMLG Module Architecture

BCM59111KMLG Module Architecture

 

Application & Uses of BCM59111KMLG 

The BCM59111KMLG has a wide range of applications in networking infrastructure due to its versatile features and capabilities. The application includes:

 

Enterprise Routers and Switches: The BCM59111KMLG can be used in enterprise-grade routers and switches to provide Power over Ethernet (PoE) capabilities. It enables the delivery of power and data over Ethernet cables, simplifying installation and reducing the need for additional power outlets.

 

Small and Medium-sized Business (SMB) Networks: SMBs can benefit from the BCM59111KMLG in setting up their network infrastructure. It allows for the deployment of PoE-enabled devices such as IP cameras, VoIP phones, and wireless access points, enhancing network connectivity and flexibility.

 

Small Office/Home Office (SOHO) Environments: In SOHO environments, where space and cost are often constraints, the BCM59111KMLG's compact design and cost-effectiveness make it an ideal choice. It enables the integration of PoE functionality into networking equipment without requiring additional components.

 

Commercial Markets: The BCM59111KMLG can also be used in various commercial settings such as retail stores, restaurants, and hotels. It facilitates the deployment of PoE-powered devices for applications like digital signage, point-of-sale systems, and access control systems.

 

Ethernet Midspans and Power Injectors: Additionally, the BCM59111KMLG can be integrated into Ethernet midspans and power injectors, which are used to add PoE capability to existing non-PoE network infrastructure. This allows for the expansion of PoE networks without the need to replace existing switches.

 

Integrated Magnetics: The device's integrated magnetics feature further enhances its suitability for various applications by simplifying PCB layout and reducing component count, thereby streamlining manufacturing processes.

 

Manufacturer

The BCM59111KMLG is manufactured by Broadcom Inc., a globally recognized technology powerhouse renowned for its extensive portfolio of semiconductor and infrastructure software solutions. With a rich heritage of innovation spanning decades, Broadcom has cemented its position as a leader in the industry, consistently pushing the boundaries of technological advancement.

 

Broadcom's core focus revolves around delivering cutting-edge products tailored to meet the diverse needs of the networking, wireless communications, storage, and industrial sectors. Leveraging its deep expertise in semiconductor design and system integration, Broadcom excels in developing integrated circuits and system-on-chip (SoC) solutions that power a myriad of applications across various industries.

 

At the forefront of Broadcom's impressive lineup of offerings is the BCM59111KMLG, a highly sophisticated component engineered specifically to address the demands of the networking industry. Designed to deliver robust performance and reliability, the BCM59111KMLG offers advanced features and capabilities that cater to the evolving requirements of Power over Ethernet (PoE) applications.

 

With a global presence spanning multiple continents and a vast network of partners and customers, Broadcom plays a pivotal role in driving technological progress and fostering digital transformation worldwide. By delivering best-in-class solutions that empower businesses to thrive in an increasingly connected world, Broadcom continues to shape the future of technology and drive innovation across industries.

 

BCM59111KMLG Datasheet

Download BCM59111KMLG datasheet PDF here>>

 

BCM59111KMLG BCM59111KMLG

Broadcom Limited

Power Over Ethernet (PoE) Controllers

3~7 Days

In Stock:9,719



FAQ

  • Is BCM59111KMLG suitable for automotive applications?

    Yes, it drivers are commonly used in automotive lighting applications due to their high efficiency, wide input voltage range, and robust protection features. They meet automotive-grade requirements and standards for reliability and performance.

  • How do I program or configure BCM59111KMLG?

    The BCM59111KMLG LED driver can be configured and controlled through external circuitry using analog voltage or PWM signals for dimming control. The datasheet and application notes provided by Broadcom Limited offer guidance on proper configuration and usage.

  • Is BCM59111KMLG suitable for high-power LED applications?

    Yes, BCM59111KMLG LED drivers are designed to drive high-power LEDs efficiently. They provide precise current regulation and support dimming control, making them suitable for various high-brightness LED lighting applications.

  • What is the difference between PoE and PoE+ in Power Sourcing Equipment?

    PoE (Power over Ethernet) and PoE+ (Power over Ethernet Plus) are different standards for delivering power over Ethernet cables. PoE supports power delivery of up to 15.4 watts per port, while PoE+ supports up to 30 watts per port. PSEs supporting PoE+ provide higher power output for devices with higher power requirements.

  • What is Power Sourcing Equipment (PSE)?

    Power Sourcing Equipment (PSE) refers to devices or systems that provide electrical power to powered devices (PDs) through network cables, typically using Power over Ethernet (PoE) technology.

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