LTM2889 datasheet(7/30 Pages) LINER

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LTM2889

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SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VISO

Rated Dielectric Insulation Voltage

1 Second (Notes 7, 8, 9)

3000

VRMS

1 Minute, Derived from 1 Second Test (Note 9)

2500

VRMS

Common Mode Transient Immunity

LTM2889-3 VCC = 3.3V, LTM2889-5

VCC = 5.0V, VL = ON = 3.3V,

ΔV(GND2-GND) = 1kV, Δt = 33ns (Note 3)

kV/µs

VIORM

Maximum Working Insulation Voltage

(Notes 3,10)

560

400

VPEAK,

VDC

VRMS

Partial Discharge

VPD = 1060 VPEAK (Note 7)

CTI

Comparative Tracking Index

IEC 60112 (Note 3)

600

VRMS

Depth of Erosion

IEC 60112 (Note 3)

0.017

DTI

Distance Through Insulation

(Note 3)

0.06

Input to Output Resistance

(Notes 3, 7)

109

Input to Output Capacitance

(Notes 3, 7)

Creepage Distance

(Notes 3, 7)

9.5

ISOLATION CHARACTERISTICS T

A = 25°C

Note 1. Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2. All currents into device pins are positive; all currents out of device

pins are negative. All voltages are referenced to device ground unless

otherwise specified.

Note 3. Not tested in production.

Note 4. This module includes overtemperature protection that is intended

to protect the device during momentary overload conditions. Junction

temperature exceeds 150°C when overtemperature protection is active.

Continuous operation above the specified maximum operating temperature

may result in device degradation or failure.

Note 5. TXD must make a high to low transition after this time to assert a

bus dominant state.

Note 6. Pin capacitance given for reference only and is not tested in

production.

Note 7. Device considered a 2-terminal device. Pin group A1 through B8

shorted together and pin group K1 through L8 shorted together.

Note 8. The Rated Dielectric Insulation Voltage should not be interpreted

as a continuous voltage rating.

Note 9. In accordance with UL1577, each device is proof tested for the

2500VRMS rating by applying an insulation test voltage of 3000VRMS for 1

second.

Note 10. Maximum Working Insulation Voltage is for continuous or

repeated voltage applied across the isolation boundary. Refer also to

relevant equipment level safety specifications which may reduce VIORM

depending on application conditions.

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