ISO7740 datasheet(16/41 Pages) TI1

16 / 41 page

Ambient Temperature (qC)

100

150

200

100

200

300

400

500

600

D001

VCC1 = VCC2 = 2.75 V

VCC1 = VCC2 = 3.6 V

VCC1 = VCC2 = 5.5 V

Ambient Temperature (qC)

100

150

200

100

150

200

250

300

350

400

450

D002

VCC1 = VCC2 = 2.75 V

VCC1 = VCC2 = 3.6 V

VCC1 = VCC2 = 5.5 V

ISO7740-Q1, ISO7741-Q1, ISO7742-Q1

SLLSEU0 – NOVEMBER 2016

www.ti.com

Product Folder Links: ISO7740-Q1 ISO7741-Q1 ISO7742-Q1

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(1)

Also known as pulse skew.

(2)

tsk(o) is the skew between outputs of a single device with all driving inputs connected together and the outputs switching in the same

direction while driving identical loads.

(3)

tsk(pp) is the magnitude of the difference in propagation delay times between any terminals of different devices switching in the same

direction while operating at identical supply voltages, temperature, input signals and loads.

6.17 Switching Characteristics—2.5-V Supply

VCC1 = VCC2 = 2.5 V ±10% (over recommended operating conditions unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

tPLH, tPHL

Propagation delay time

See Figure 15

7.5

18.5

PWD

Pulse width distortion(1) |tPHL – tPLH|

0.2

5.1

tsk(o)

Channel-to-channel output skew time(2)

Same-direction Channels

4.1

tsk(pp)

Part-to-part skew time(3)

4.6

Output signal rise time

See Figure 15

3.5

Output signal fall time

3.5

tPHZ

Disable propagation delay, high-to-high impedance output

See Figure 16

tPLZ

Disable propagation delay, low-to-high impedance output

tPZH

Enable propagation delay, high impedance-to-high output

for ISO774x-Q1

Enable propagation delay, high impedance-to-high output

for ISO774x-Q1 with F suffix

3.3

8.5

μs

tPZL

Enable propagation delay, high impedance-to-low output

for ISO774x-Q1

3.3

8.5

μs

Enable propagation delay, high impedance-to-low output

for ISO774x-Q1 with F suffix

tDO

Default output delay time from input power loss

Measured from the time VCC goes

below 1.7 V. See

0.1

0.3

μs

tie

Time interval error

216 – 1 PRBS data at 100 Mbps

0.7

6.18 Insulation Characteristics Curves

Figure 1. Thermal Derating Curve for Safety Limiting

Current for

DW-16 Package

Figure 2. Thermal Derating Curve for Safety Limiting

Current for

DBQ-16 Package

ISO7740 Datasheet(PDF) 16 Page - Texas Instruments

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