BCM59101 [BOARDCOM]
Control ler and Power Management Technology; 控制LER和电源管理技术
| 型号： | BCM59101 |
| 厂家： | 
Broadcom Corporation. |
| 描述： | Control ler and Power Management Technology |
| 文件： | 总2页 (文件大小：610K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Broadcom
BCM59101
Controller and Power
Management Technology
QUAD INTEGRATED IEEE 802.3AF-2003 PSE CONTROLLER AND
POWER MANAGEMENT SYSTEM WITH ENHANCED CAPABILITIES
Overview
• Extensive hardware features
The BCM59101 is a highly integrated quad power
– Certified by Underwriters Laboratory (UL) as
a current-limiting device per QVGS, so fuses
are not necessary.
– 15.4W per port to support PoE PDs.
– Programmable current limit for both
IEEE 802.3af and extended power ranges.
– Low power dissipation eliminating heat sink.
– Broadcom Serial Control (BSC) and UART
interface support to the host.
source equipment (PSE) controller compatible with
IEEE 802.3af-2003. The controller is the industry
first to offer highly integrated architecture with
revolutionary enhancements that are targeted at
reducing the complexity of Power over Ethernet
(PoE) designs.
Highlights
• Industry-first quad PSE control-
ler to simplify PoE designs
The BCM59101 integrates the following: microcon-
troller, power switches, low-loss current sense func-
tion, detection, classification, and voltage
• Compatible with other
Broadcom POE-enabled
products
converters as well as 3.3V bias regulator (DC:DC
converter) and AC disconnect functionality.
– Robust switch protection circuit withstands
cable discharge and ESD events (CESD).
– Real-time current, voltage, and temperature
measurements available per port.
– Cascading of multiple devices, up to 64 ports
support with the option of single hardware
and software interface for the host.
– Includes four LED drivers reporting PoE port
activity.
– Integrated 3.3V buck regulator (DC:DC) to
support up to 200 mA.
– Overtemperature protection.
– Operates from a single 48V supply.
• Extensive software features
The high level of integration and innovation make
the device the most power-efficient integrated IEEE
802.3af PoE system.
• Most power-efficient IEEE
802.3af PoE system
• User-friendly host interface
The BCM59101 provides a networking-oriented
host interface that offers a full suite of power man-
agement. This easy-to-use interface can be
extended to manage up to 64 cascaded ports
through a single host interface.
• High IEEE standards support
combined with broad hardware
and software integration and
features
• Supports applications for
various markets
The BCM59101 is designed with robustness and leg-
acy support. It offers detection and classification
mechanisms capable of detecting both IEEE
802.3af-compatible devices and legacy devices
simultaneously. Additionally, the BCM59101 is
designed and tested to withstand cable discharge
events as well as ESD events in excess of 2 kV.
• Low BOM cost
– Self-contained power allocation software.
– Integrated four-port power management.
– Integrated power management for all ports
in cascaded version.
Architectural Features
• Standards support
Benefits
BCM59101
• Highest integration allows the following:
– Lowest total BOM count.
– Easier PCB placement and PCB area saving.
– Full functionality without external
μ-controller, including power management.
– Eliminates need for an external 48V to 3.3V
power conversion.
– IEEE 802.3af-2003-compliant
– IEEE 802.3af-2003 classification scheme
support
– Supports pre-IEEE 802.3af-2003 legacy
detection
• High hardware integration: switches, current
sense functionality, microcontroller, and AC
and DC disconnect options
Enterprise
SMB
Service
Provider
ONT/ONU
Supported
Best Choice
“48V”
(One of four ports shown)
AC Disconnect
or DC
Disconnect
BCM59101
Tx
CESD Protection
10-bit ADC
SMPS
Control
3.3V
RAM
+
ROM
E-8051
μ-controller
VDD
Rx
Comm (BSC/UART)
VDDA
PSE
Pass-FET
Control
5x
LED
Control
1%
Current
Sense
SDATAIN,
SDATAOUT,
SCLKIN,
SCLKOUT
To Host
OPTOS
BCM59101 Module Architecture
Benefits (cont.)
• Further reduces BOM count via 3.3V
DC:DC capability to be shared across
multiple BCM59101 devices
• Eliminates need for a heat sink
• Easy layout and design via simple
ground/power plane
• Works with Broadcom POE-enabled
products for easy implementation
• Architected with system-oriented
features to allow for system-level dif-
ferentiation, including:
– Single point of interface for host
hardware and software
– Power management across all
ports in cascaded configuration
– Programmable current limits and
dynamic measurement per port
– Rapid power-down to support
multiple power supply failures
• Supports a variety of applications
– Routers and switches for enter-
prise, SMB, SOHO, and commercial
markets
– Ethernet midspans
– PSE power injectors
– Integrated magnetics
Part Number
Ordering Information
BCM59101BKMLG
BCM59101
About Broadcom
Broadcom Corporation is a major technology
innovator and global leader in
These solutions support our core mission:
Connecting everything®.
A FORTUNE 500® company, Broadcom is
headquartered in Irvine, Calif., and has offices
and research facilities in North America, Asia
and Europe. Broadcom may be contacted at
+1.949.926.5000 or at www.broadcom.com.
semiconductors for wired and wireless
communications. Broadcom® products
enable the delivery of voice, video, data and
multimedia to and throughout the home, the
office and the mobile environment. We
provide the industry's broadest portfolio of
state-of-the-art system-on-a-chip and
software solutions to manufacturers of
computing and networking equipment,
digital entertainment and broadband access
products, and mobile devices.
Broadcom, one of the world's largest fabless
communications semiconductor companies,
with 2010 revenue of $6.82 billion, holds
more than 4,800 U.S. and 2,000 foreign
patents, and has more than 7,800 additional
pending patent applications, and one of the
broadest intellectual property portfolios
addressing both wired and wireless
transmission of voice, video, data and
multimedia.
Broadcom, the pulse logo, Connecting everything, and the Connecting everything logo are among the trademarks of Broadcom Corporation and/or its affiliates in the United States, certain
other countries and/or the EU. Any other trademarks or trade names mentioned are the property of their respective owners.
April 01, 2011 • 59101-PB02-R
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