LTC2871 datasheet(5/24 Pages) LINER

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LTM2881

2881fe

ISOLATION CHARACTERISTICS T

A = 25°C, LTM2881-3 VCC = 3.3V, LTM2881-5 VCC = 5.0V, VL = 3.3V unless

otherwise noted.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VISO

Rated Dielectric Insulation Voltage

1 Minute (Derived from 1 Second Test)

2500

VRMS

1 Second (Note 5)

±4400

VDC

Common Mode Transient Immunity

LTM2881-3 VCC = 3.3V, LTM2881-5 VCC = 5V,

VL = ON = 3.3V, VCM = 1kV, Δt = 33ns (Note 2)

±30

kV/μs

VIORM

Maximum Working Insulation Voltage

(Notes 2, 5)

560

400

VPEAK

VRMS

Partial Discharge

VPR = 1050 VPEAK (Note 2)

Input to Output Resistance

(Notes 2, 5)

109

Input to Output Capacitance

(Notes 2, 5)

Creepage Distance

(Notes 2, 5)

9.48

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: Guaranteed by design and not subject to production test.

Note 3: Maximum Data rate is guaranteed by other measured parameters

and is not tested directly.

Note 4: This μModule transceiver includes overtemperature protection that

is intended to protect the device during momentary overload conditions.

Junction temperature will exceed 125°C when overtemperature protection

is active. Continuous operation above specified maximum operating

junction temperature may result in device degradation or failure.

Note 5: Device considered a 2-terminal device. Pin group A1 through B8

shorted together and pin group K1 through L8 shorted together.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

tRD

tFD

Driver Rise or Fall Time

RDIFF = 54Ω, CL = 100pF

(Figure 4)

0.9

1.5

μs

tZLD, tZHD,

tLZD, tHZD

Driver Output Enable or Disable

Time

RL = 500Ω, CL = 50pF

(Figure 5)

400

Receiver

tPLHR

tPHLR

Receiver Input to Output

CL = 15pF, VCM = 2.5V, |VAB| = 1.4V,

tR and tF < 4ns, (Figure 6)

100

140

tSKEWR

Differential Receiver Skew

|tPLHR - tPHLR|

CL = 15pF

(Figure 6)

tRR

tFR

Receiver Output Rise or Fall Time CL = 15pF

(Figure 6)

12.5

tZLR, tZHR,

tLZR, tHZR

Receiver Output Enable Time

RL =1kΩ, CL = 15pF

(Figure 7)

tRTEN, tRTZ

Termination Enable or Disable

Time

RE = 0V, DE = 0V, VAB = 2V, VB = 0V (Figure 8)

100

μs

Generic Logic Input

tPLHL1

tPHLL1

DIN to DOUT Input to Output

CL = 15pF,

tR and tF < 4ns

100

Power Supply Generator

VCC2–GND2 Supply Start-Up

Time

(0V to 4.5V)

VL, No Load

325

800

μs

SWITCHING CHARACTERISTICS The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. LTM2881-3 VCC = 3.3V, LTM2881-5 VCC = 5.0V, VL = 3.3V, GND = GND2 =

0V, ON = VL unless otherwise noted.

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