The ISO7220 and ISO7221 are dual-channel digital isolators

ISO7220M

Manufacturer Part NumberISO7220M
DescriptionThe ISO7220 and ISO7221 are dual-channel digital isolators
ManufacturerTexas Instruments
ISO7220M datasheet
 


Specifications of ISO7220M

Number Of Channels2Channel Configuration2/0
Insulation Rating(vrms)2500Supply Voltage(s)(v)3.3, 5
Datarate(mbps)150Input Noise FilterNone
Prop Delay(max)(ns)16Ttl/cmos Input ThresholdCMOS
FootprintADuM1200Operating Temperature Range(c)-40 to 125
Pin/package8SOICThermal ShutdownNo
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ISO7220A, ISO7220B, ISO7220C, ISO7220M
ISO7221A, ISO7221B, ISO7221C, ISO7221M
SLLS755L – JULY 2006 – REVISED JANUARY 2012
Insulation:
Operational insulation — Insulation needed for the correct operation of the equipment.
Basic insulation — Insulation to provide basic protection against electric shock.
Supplementary insulation — Independent insulation applied in addition to basic insulation in order to ensure
protection against electric shock in the event of a failure of the basic insulation.
Double insulation — Insulation comprising both basic and supplementary insulation.
Reinforced insulation — A single insulation system which provides a degree of protection against electric shock
equivalent to double insulation.
Pollution Degree:
Pollution Degree 1 — No pollution, or only dry, nonconductive pollution occurs. The pollution has no influence.
Pollution Degree 2 — Normally, only nonconductive pollution occurs. However, a temporary conductivity caused
by condensation must be expected.
Pollution Degree 3 — Conductive pollution occurs or dry nonconductive pollution occurs which becomes
conductive due to condensation which is to be expected.
Pollution Degree 4 – Continuous conductivity occurs due to conductive dust, rain, or other wet conditions.
Installation Category:
Overvoltage Category — This section is directed at insulation co-ordination by identifying the transient
overvoltages which may occur, and by assigning 4 different levels as indicated in IEC 60664.
I: Signal Level — Special equipment or parts of equipment.
II: Local Level — Portable equipment etc.
III: Distribution Level — Fixed installation
IV: Primary Supply Level — Overhead lines, cable systems
Each category should be subject to smaller transients than the category above.
SPACER
Changes from Original (July 2006) to Revision A
Deleted "and CSA Apporved" from the UL 1577 FEATURES bullet ....................................................................................
Added option A to the AVAILABLE OPTIONS table ............................................................................................................
Changes from Revision A (August 2006) to Revision B
Added the ELECTICAL CHARACTERISTICS tables to the data sheet ...............................................................................
Added the PARAMETER MEASUREMENT INFORMATION to the data sheet .................................................................
Added the DEVICE INFORMATION section to the data sheet ..........................................................................................
Added the TYPICAL CHARACTERISTIC CURVES to the data sheet. ..............................................................................
Added the APPLICATION INFORMATION section to the data sheet ................................................................................
Added the ISOLATION GLOSSARY section to the data sheet ..........................................................................................
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REVISION HISTORY
Copyright © 2006–2012, Texas Instruments Incorporated
www.ti.com
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