The Le75282 Dual Intelligent Line Card Access Switch (LCAS) device is a monolithic solid-state device that provides the switching functionality of four 2 Form C relays in one economical small package. The Le75282 Dual LCAS device is designed to provide power ringing access to a telephone loop in central office, digital loop carrier, private branch exchange, digitally added main line, and hybrid fiber coax/fiber-in-the-loop analog line card applications. An additional pair of solid-state contacts provides access to the telephone loop for line test access or message waiting in the PBX application.

Features & Benefits

• Small size/surface-mount packaging
• Monolithic IC reliability
• Low impulse noise
• Make-before-break, break-before-make operation
• Clean, bounce-free switching
• Low, matched ON-resistance
• Built-in current limiting, thermal shutdown, and SLIC device protection
• 5-V operation, very low power consumption
• Battery monitor, All Off state upon loss of battery
• No EMI
• Latched logic level inputs, no drive circuitry
• Only one external protector required per channel

Documentation

• Le75282-datasheet.pdf

Errata

Design Manuals

Software Manuals

Application Notes

• Impulse-Noise-VE750-Appnote.pdf
• Protecting-Line-Card-Access-Switch-Devices.pdf

Product Previews

• VE750-Series-Overview.pdf
• Access Infrastructure Product Preview

Evaluation Boards

• VE790 Series Demonstration Board User's GuidePlease login to access protected documents.

Reference Designs

• Le51HR0112-rev-4-Line-Module-Users-Guide.pdfPlease login to access protected documents.
• Le51HR0112-rev-3-Line-Module-Users-Guide.pdfPlease login to access protected documents.

Typical Applications

Central office

DLC

PBX

DAML

HFC/FITL

Product Packaging & Availability

Part Number	Package Type	Pin Count	Lead-Free Option	Shipping Option(s)	Lead Time(wks)	Status
LE75282BBVC	TQFP	44	GREEN	Tray	10-12 weeks	Production
LE75282BBVC	TQFP	44	GREEN	Tray	10-12 weeks	Production
LE75282BBVCT	TQFP	44	GREEN	TR	10-12 weeks	Production
LE75282BBVCT	TQFP	44	GREEN	TR	10-12 weeks	Production

Packaging Information

• Soldering Profiles
• Moisture Sensitivity
• Shelf Life
• Reliability Data

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