bcm59105 Broadcom Corp., bcm59105 Datasheet - Page 2

• Manufacturer Part Number: bcm59105
• Description: Quad Integrated Broadr-reach Power Over Ethernet Poe Controller
• Manufacturer: Broadcom Corp.

The BCM59105 is a highly integrated quad PSE controller compatible
with BroadR-Reach technology. The controller extends the distance of
PoE to 500m and can be used on a single twisted-pair, so that PoE,
Ethernet, and IP services can be deployed over installed telephone
wiring. The PSE controller can also be used with coax cable for IP video
solutions that extend beyond 100m. The controller is the first in the
industry to offer a highly integrated architecture with revolutionary
enhancements that are targeted at reducing the complexity of PoE
designs for BroadR-Reach applications.
The BCM59105 integrates the microcontroller, power switches, low-loss
current sense function, detection, classification, and voltage converters
3.3V bias regulator (DC:DC converter) and AC disconnect functionality.
The high-level of integration and innovation make the device the most
power efficient integrated IEEE 802.3at PoE system.
Broadcom
Reach™ 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.
BROADCOM CORPORATION
5300 California Avenue
Irvine, California 92617
© 2009 by BROADCOM CORPORATION. All rights reserved.
59105-PB00-R
®
, the pulse logo, Connecting everything
10/27/09
To Host
®
“48V”
3.3V
®
, the Connecting everything logo, and BroadR-
BCM59105 Module Architecture
CESD Protection
SMPS Control
BSC/UART
Control
Comm
O V E R V I E W
LED
5x
RAM + ROM
-Controller
E-8051
BCM59105
PSE FET
Control
Current
Sense
±1%
Charge Pump
The BCM59105 offers a networking-oriented host interface that offers a
full suite of power management. This easy to use interface can be
extended to manage up to 64-cascaded ports through a single host
interface.
The BCM59105 is designed with robustness and legacy support. It offers
detection and classification mechanisms capable of detecting both
IEEE 802.3at-compatible devices and legacy devices simultaneously. In
addition, the BCM59105 is designed and tested to withstand cable
discharge events as well as ESD events in excess of 2 kV.
The BCM59105 is a unique PSE controller that allows Broadcom to take
advantage of both PoE and BroadR-Reach technology in the same
solution. The controller integrates the microcontroller, power switches,
low-loss current sense function, detection, and disconnect functionality.
The high-level of integration and innovation make the device simple and
easy to use for BroadR-Reach applications.
10-bit ADC
(One of four ports shown)
Tx/Rx
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.broadcom.com