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LE9541

Single Ch Ringing SLIC with Serial Interface

Status: In Production

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Overview
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Development Environment
RoHS Information
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Device Overview

Summary

The Le9541 Single Ringing SLIC device is optimized for single channel designs to provide battery feed, ringing, and supervision on voice loops found in short-loop VoIP applications. This device utilizes a serial bus to interface to the Broadcom BCM3383/84/85/90 cable SoCs and BCM6818/28/38 PON SoCs. The Le9541 device operates independently from a single, user-adjusted battery and a +3.3 V VCC providing forward and reverse battery feed, voice transmission, power ringing, an ultra low-power scan state, ground start (Tip open), and a disconnect state. A test load switch is also included to support integrated test algorithms.

Additional Features
  • Single Channel High Voltage Ringing SLIC
  • Functionally Equivalent of Le9540 One Channel
  • Operation Control and Status Report through Serial Interface with Reset
    • SLIC Operation State / DC Current Limit / Test Load Enable
    • DC Loop Closure / Ring Trip / Thermal Shutdown
  • High Voltage Design
    • Meets Comcast Ringing requirements without clipping distortion
    • Robust solution with no damage during extended ringing cycles or switching the ringer on and off
    • Allows use of 50 Ohm protection resistors and lower cost lower current rated protectors
    • Up to -145 V ringing battery Le9541D
    • Up to -100 V ringing battery Le9541C
  • Eight Operating States
    • Scan state for minimal power dissipation
    • Active Forward Battery (Default Power Up State)
    • Active Forward Battery ICV
    • Active Reverse Battery
    • Tip Open Ground Start
    • Wink
    • Ringing
    • Disconnect (Default Power Up Mode)
  • Ringing Inputs for Optimized Interface to BCM SoC Devices
    • Allows to accept driving signals from voice outputs as well as from PWM outputs
  • Ultra-Low On-Hook Power
  • Loop Start, Ring Trip, and Ground Start Detections
    • Loop closure detection with hysteresis to minimize dial pulse distortion
  • Thermal Shutdown Protection with Hysteresis
  • Test Load Switch
  • Supports integrated test algorithms
Parametrics
Name
Value
Application
Broadband Gateway SLIC
Series
VE950
Loop Length
Short
Battery Topology
Tracking
SOC Interface
Serial
Output Voltage (V) max
145
Number of Ports
1
Release
True

Documents

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Data Sheets

  
520KB

Product Brief


Please visit the Microsemi Software Download System (SDS) for available software.

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
LE9541CUQC
0.107100
0.489796
40
VQFN
6x6x1mm
Matte Tin
e3
LE9541CUQCT
0.107100
0.370000
40
VQFN
6x6x1mm
Matte Tin
e3
LE9541DUQC
0.107100
0.489796
40
VQFN
6x6x1mm
Matte Tin
e3
LE9541DUQCT
0.107100
0.370000
40
VQFN
6x6x1mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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