Datasheet Linear Technology LTC6820

Manufacturer	Linear Technology
Series	LTC6820

isoSPI Isolated Communications Interface

Datasheets

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PDF, 486 Kb, Revision: B, File uploaded: Nov 16, 2017

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Packaging

	LTC6820HMS#PBF	LTC6820HMS#TRPBF	LTC6820HUD#PBF	LTC6820HUD#TRPBF	LTC6820IMS#PBF	LTC6820IMS#TRPBF	LTC6820IUD#PBF	LTC6820IUD#TRPBF
N	1	2	3	4	5	6	7	8
Package	MS-16 Package Outline Drawing	MS-16 Package Outline Drawing	3x3 QFN-16 Package Outline Drawing	3x3 QFN-16 Package Outline Drawing	MS-16 Package Outline Drawing	MS-16 Package Outline Drawing	3x3 QFN-16 Package Outline Drawing	3x3 QFN-16 Package Outline Drawing
Package Code	MS	MS	UD	UD	MS	MS	UD	UD
Package Index	05-08-1669	05-08-1669	05-08-1700	05-08-1700	05-08-1669	05-08-1669	05-08-1700	05-08-1700
Pin Count	16	16	16	16	16	16	16	16

Parametrics

Parameters / Models	LTC6820HMS#PBF	LTC6820HMS#TRPBF	LTC6820HUD#PBF	LTC6820HUD#TRPBF	LTC6820IMS#PBF	LTC6820IMS#TRPBF	LTC6820IUD#PBF	LTC6820IUD#TRPBF
Demo Boards	DC1907A,DC2100B-C,DC1941D,DC2617A	DC1907A,DC2100B-C,DC1941D,DC2617A	DC1907A,DC2100B-C,DC1941D,DC2617A	DC1907A,DC2100B-C,DC1941D,DC2617A	DC1907A,DC2100B-C,DC1941D,DC2617A	DC1907A,DC2100B-C,DC1941D,DC2617A	DC1907A,DC2100B-C,DC1941D,DC2617A	DC1907A,DC2100B-C,DC1941D,DC2617A
Drivers	1	1	1	1	1	1	1	1
Export Control	no	no	no	no	no	no	no	no
Features	Translates SPI for transmission over twisted pair up to 100M, Low EMI Susceptibility and Emissions	Translates SPI for transmission over twisted pair up to 100M, Low EMI Susceptibility and Emissions	Translates SPI for transmission over twisted pair up to 100M, Low EMI Susceptibility and Emissions	Translates SPI for transmission over twisted pair up to 100M, Low EMI Susceptibility and Emissions	Translates SPI for transmission over twisted pair up to 100M, Low EMI Susceptibility and Emissions	Translates SPI for transmission over twisted pair up to 100M, Low EMI Susceptibility and Emissions	Translates SPI for transmission over twisted pair up to 100M, Low EMI Susceptibility and Emissions	Translates SPI for transmission over twisted pair up to 100M, Low EMI Susceptibility and Emissions
Max Data Rate, Mbps	1	1	1	1	1	1	1	1
Operating Temperature Range, °C	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Protocols Supported	SPI, isoSPI	SPI, isoSPI	SPI, isoSPI	SPI, isoSPI	SPI, isoSPI	SPI, isoSPI	SPI, isoSPI	SPI, isoSPI
Receivers	1	1	1	1	1	1	1	1
Supply Voltage Range	1.7V to 5.5V	1.7V to 5.5V	1.7V to 5.5V	1.7V to 5.5V	1.7V to 5.5V	1.7V to 5.5V	1.7V to 5.5V	1.7V to 5.5V
Termination Type	External	External	External	External	External	External	External	External

Eco Plan

	LTC6820HMS#PBF	LTC6820HMS#TRPBF	LTC6820HUD#PBF	LTC6820HUD#TRPBF	LTC6820IMS#PBF	LTC6820IMS#TRPBF	LTC6820IUD#PBF	LTC6820IUD#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Articles

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Low Cost isoSPI Coupling Circuitry for High Voltage High Capacity Battery Systems &mdash LT Journal
PDF, 302 Kb, File published: Apr 9, 2014
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Low Cost isoSPI Coupling Circuitry for High Voltage High
Capacity Battery Systems
Jon Munson The isoSPIв„ў feature built into the LTC6804 battery
stack monitor, when combined with an LTC6820 isoSPI
communications interface, enables safe and robust
information transfer across a high voltage barrier. isoSPI is
particularly useful in energy storage systems that produce
hundreds of volts via series-connected cells, which require
full dielectric isolation to minimize hazards to personnel.
In a typical isoSPI application (Figure 1)
pulse transformers provide the dielectric isolation and reject common-mode
interference that can be impressed on
the wiring. The isoSPI function operates
with readily available and inexpensive
Ethernet LAN magnetics, which typically
include a common-mode-choke section (as shown in Figure 1) to improve
common-mode line noise, along with the
usual 100в„¦ line termination resistors and
common-mode decoupling capacitors.
Ordinary signal transformers, including
Ethernet and gate-driver types, are wound with enameled wire that can have pin-hole
sized insulation defects, which expose
the copper to the atmosphere, inherently …

Model Line

Series: LTC6820 (8)

LTC6820HMS#PBF LTC6820HMS#TRPBF LTC6820HUD#PBF LTC6820HUD#TRPBF LTC6820IMS#PBF LTC6820IMS#TRPBF LTC6820IUD#PBF LTC6820IUD#TRPBF

Manufacturer's Classification

Interface > Isolated Transceivers > isoSPI Isolators
Interface > Extended Temperature (H & MP) Interface