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LE9502TC

Description
SLIC, Bipolar, PQFP44, TQFP-44
CategoryWireless rf/communication    Telecom circuit   
File Size432KB,25 Pages
ManufacturerMicrosemi
Websitehttps://www.microsemi.com
Environmental Compliance  
Download Datasheet Parametric Compare View All

LE9502TC Overview

SLIC, Bipolar, PQFP44, TQFP-44

LE9502TC Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
MakerMicrosemi
Parts packaging codeQFP
package instructionHTQFP,
Contacts44
Reach Compliance Codecompliant
JESD-30 codeS-PQFP-G44
JESD-609 codee3
length10 mm
Humidity sensitivity level3
Number of functions1
Number of terminals44
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeHTQFP
Package shapeSQUARE
Package formFLATPACK, HEAT SINK/SLUG, THIN PROFILE
Peak Reflow Temperature (Celsius)265
Certification statusNot Qualified
Maximum seat height1.2 mm
Nominal supply voltage3.3 V
surface mountYES
technologyBIPOLAR
Telecom integrated circuit typesSLIC
Temperature levelINDUSTRIAL
Terminal surfaceMATTE TIN
Terminal formGULL WING
Terminal pitch0.8 mm
Terminal locationQUAD
Maximum time at peak reflow temperatureNOT SPECIFIED
width10 mm
Le9502
Ringing Subscriber Line Interface Circuit
VE950 Series
APPLICATIONS
!
Short/Medium Loop: approximately 2000 ft. of 26 AWG,
!
!
!
!
and 5 REN loads
Voice over IP/DSL – Integrated Access Devices, Smart
Residential Gateways, Home Gateway/Router
Cable Telephony – NIU, Set-Top Box, Home Side Box,
Cable Modem, Cable PC
Fiber–Fiber In The Loop (FITL), Fiber to the Home
(FTTH)
Wireless Local Loop, Intelligent PBX, ISDN NT1/TA
DESCRIPTION
Legerity’s Le9502 Ringing Subscriber Line Interface Circuit
(RSLIC) device from the VE950 series has enhanced and
optimized features to directly address the requirements of
Voice over Broadband applications. Its goal is to reduce system
level costs, space, and power through higher levels of
integration, and to reduce the total cost of ownership by offering
better quality of service. The Le9502 RSLIC device provides a
totally configurable solution to the BORSCHT functions for two
lines. The resulting system is less complex, smaller, and
denser, yet cost effective with minimal external components.
The Le9502 RSLIC device requires only two power supplies:
+3.3 VDC and nominally +12 VDC. The latter power supply can
range from +8 VDC to +40 VDC, depending on the application.
A single TTL-level clock source drives an external transistor
which controls the ramp voltage that in turn feeds the switching
regulators. Five programmable states are available: Active,
Reverse Polarity, Ringing, Standby, and Disconnect. The DC
feed, two-wire AC input impedance, hook-switch threshold, and
ring trip threshold are programmable via external discrete
components. Binary fault detection is provided upon
application of fault conditions or thermal overload.
FEATURES
!
Integrated Dual-Channel Chip set
— Built-in boost switching power supply tracks line voltage
minimizing power dissipation
— Only +3.3 V and +12 V (nominal) required
— Wide range of input voltages (+8 V to +40 V) supported
— Minimal external discrete components
— 44-pin eTQFP package
!
Ringing
70 Vpk into 5REN
90 Vpk capable
Sinusoidal or trapezoidal capability
DC offset support
Common differential interface for both channels
!
World Wide programmability:
— Two-wire AC impedance
— Dual Current Limit
— Loop closure and ring trip thresholds
BLOCK DIAGRAM
Le9502
!
Five SLIC States, including:
— Low power Standby state
— Reverse Polarity
RELATED LITERATURE
!
!
!
!
!
!
081189 Le9500 RSLIC Device Data Sheet
081208 Le9501 RSLIC Device Data Sheet
080696 Le77D11 VoSLIC™ Device Data Sheet
080697 Le78D11 VoSLAC™ Device Sheet
080716 Le77D11 /Le78D11 Chip Set User’s Guide
080780 Layout Considerations for the Le77D11 and
Le9502 Devices Application Note
Differential
Switching Power
Supply
2-wire
Tip+Ring
Interface
Ring
Tip
2-wire to 4-wire
conversion
Codec
Device
Codec
Interface
2-wire to 4-wire
conversion
ORDERING INFORMATION
Device
Le9502TC
Package
44-pin eTQFP
Switching Power
Supply
2-wire
Tip+Ring
Interface
Ring
Tip
Document ID#
081007
Date:
Rev:
C
Version:
Distribution:
Public Document
Apr 21, 2004
1

LE9502TC Related Products

LE9502TC
Description SLIC, Bipolar, PQFP44, TQFP-44
Is it lead-free? Lead free
Maker Microsemi
Parts packaging code QFP
package instruction HTQFP,
Contacts 44
Reach Compliance Code compliant
JESD-30 code S-PQFP-G44
JESD-609 code e3
length 10 mm
Humidity sensitivity level 3
Number of functions 1
Number of terminals 44
Maximum operating temperature 85 °C
Minimum operating temperature -40 °C
Package body material PLASTIC/EPOXY
encapsulated code HTQFP
Package shape SQUARE
Package form FLATPACK, HEAT SINK/SLUG, THIN PROFILE
Peak Reflow Temperature (Celsius) 265
Certification status Not Qualified
Maximum seat height 1.2 mm
Nominal supply voltage 3.3 V
surface mount YES
technology BIPOLAR
Telecom integrated circuit types SLIC
Temperature level INDUSTRIAL
Terminal surface MATTE TIN
Terminal form GULL WING
Terminal pitch 0.8 mm
Terminal location QUAD
Maximum time at peak reflow temperature NOT SPECIFIED
width 10 mm
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