DataSheet39.com

What is STE12PS?

This electronic component, produced by the manufacturer "Silicon Tech", performs the same function as "12-Channel Integrated PSE Line Manager".


STE12PS Datasheet PDF - Silicon Tech

Part Number STE12PS
Description 12-Channel Integrated PSE Line Manager
Manufacturers Silicon Tech 
Logo Silicon Tech Logo 


There is a preview and STE12PS download ( pdf file ) link at the bottom of this page.





Total 30 Pages



Preview 1 page

No Preview Available ! STE12PS datasheet, circuit

www.DataSheet4U.com
STE12PS
12 channel integrated PSE line manager
Preliminary Data
Features
PSE power control device
Supports up to 12 independent or four 30W,
“boosted” ports
Wide operating range: up to 90V
IEEE 802.3af compliant
Open circuit detection: AC and DC methods
Advanced power management algorithm
Current sensing with as low as 500mΩ,
external, series resistors
No need for external FETs
In-rush current control
Short-circuit protection
Adaptable signature detection capability
On-chip 3.3V SMPS controller
Low-noise, 12-bit ADC
Standard I2C interface
Parallel monitor interface
Description
STE12PS is designed to supply power over
multiple Ethernet channels in order to avoid
different, individual power supply units for
applications such as Web cams, IP Phones,
Bluetooth access points and WLAN access
points.
The equipment that provides the power to the
twisted pair cabling is referred to as Power
Sourcing Equipment (PSE).
The PSE’s main functions are: looking for links to
a Powered Device (PD), classifying a PD,
supplying power to the link, monitoring power on
the link, and removing power from the link.
PBGA23x23
The STE12PS is fully programmable, supporting
the detection and powering of IEEE802.3af as
well as legacy PDs. The flexibility of the STE12PS
allows the user to select a suitable system
configuration: up to 12 ports as well as 4
“boosted” channels. If needed, the STE12PS can
also efficiently manage cases or applications
where a limited amount of power is available to
the ports (smart-power capability) by means of
integrated, power MOSFET devices. All
operations are controlled via the I2C bus also
notifying externally some ports status condition
via dedicated pins.
Ethernet port isolation can be easily maintained
thanks to an integrated 3.3V SMPS power source
and by means of optocouplers.
The STE12PS has five address selection inputs
to choose up to 32 possible different addresses.
Power can be provided to the PD using either
spare lines of the Ethernet cable or using the data
wires, as specified by IEEE 802.3af.
November 2006
Rev 1
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
1/44
www.st.com
44

line_dark_gray
STE12PS equivalent
www.DataSheet4U.com
STE12PS
Pin description
2 Pin description
Table 1. Analog pins description
Pin name
I/O
Function
IDET_HVLV
O
Anti-aliasing filter capacitor to be connected between the analog input and
ground to improve ADC noise performance. C = 180pF.
IMON_HVLV
O
Anti-aliasing filter capacitor to be connected between the analog input and
ground. C = 180pF.
Vbat_mon
O
Anti-aliasing filter capacitor to be connected between the analog input and
ground. C = 100nF.
Vbatref
O
Anti-aliasing filter capacitor to be connected between the analog input and
ground. C = 100nF.
I_REF
O
Anti-aliasing filter capacitor to be connected between the analog input and
ground. C = 180pF.
CDETSLOW
O Detection rise/fall time capacitor (up to 25nF). Tr/f can be set from 1ns to 4ms.
RSENSE
O SMPS precision, external, current limiting reference resistor: 100m
VDRIVE
O
External p-channel MOSFET gate driving voltage for SMPS. It provides a
square wave with VL as upper limit and (VL-10V) as lower limit voltage.
SFTSTR
O Switched Mode Power Supply (SMPS) soft start capacitor, 200nF.
FB IO SMPS feedback pin, Cfb = 2.2nF
Pn
O
Power DMOS device drain, if DMOS is turned-on, channel “n” where n = 1,…12
is activated.
ACSn
O It provides a 50Hz AC disconnection signal for port “n”, n = 1, … 12.
SPn I Detection classification and AC disconnection sensing port “n”, n = 1, … 12.
SSRPn
Line current to the monitoring resistor for channel “n”, n = 1,… 12. Allowed
I values are 0.523, 1.05, 1.58 and 2.1ohms (see also SENSPROG preset pins).
Sensing pin.
FSRPn
O
Source terminal for power DMOS connected to the sense resistor for channel
“n”, n = 1,… 12, a “forcing” pin.
RMONF
RMONS
RREF
O
Mirror monitoring resistance (500 × Rsense) pin to let internal ADC evaluate line
currents. Forcing pin.
O
Mirror monitoring resistance (500 × Rsense) pin to let internal ADC evaluate line
currents. A “sensing” pin.
I Reference bias resistor: 18.7k
CLK_GEN1
I Crystal oscillator pin1 for high performance clock generation.
CLK_GEN2
I Crystal oscillator pin2 for high performance clock generation.
MCLK
O Master clock output for multi device configuration.
CLK_GEN3
I Low profile clock input pin or clock input pin in multi-device configuration.
ACin
I 50Hz sinusoidal input
ACout
O 50Hz sinusoidal output, internally generated
5/44


line_dark_gray

Preview 5 Page


Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for STE12PS electronic component.


Information Total 30 Pages
Link URL [ Copy URL to Clipboard ]
Download [ STE12PS.PDF Datasheet ]

Share Link :

Electronic Components Distributor


An electronic components distributor is a company that sources, stocks, and sells electronic components to manufacturers, engineers, and hobbyists.


SparkFun Electronics Allied Electronics DigiKey Electronics Arrow Electronics
Mouser Electronics Adafruit Newark Chip One Stop


Featured Datasheets

Part NumberDescriptionMFRS
STE12PSThe function is 12-Channel Integrated PSE Line Manager. Silicon TechSilicon Tech

Semiconductors commonly used in industry:

1N4148   |   BAW56   |   1N5400   |   NE555   |  

LM324   |   BC327   |   IRF840  |   2N3904   |  



Quick jump to:

STE1     1N4     2N2     2SA     2SC     74H     BC     HCF     IRF     KA    

LA     LM     MC     NE     ST     STK     TDA     TL     UA    



Privacy Policy   |    Contact Us     |    New    |    Search