ADUM1440 データシートの表示（PDF） - Analog Devices

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ADUM1440

Micropower Quad-Channel Digital Isolators

Analog Devices 

Data Sheet

ADuM1440/ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM1447

ABSOLUTE MAXIMUM RATINGS

TA = 25°C, unless otherwise noted.

Table 16.

Parameter

Supply Voltages (VDD1, VDD2)

Input Voltages (VIA, VIB )

Output Voltages (VOA, VOB)

Average Output Current per Pin1

Side 1 (IO1)

Side 2 (IO2)

Common-Mode Transients2

Storage Temperature (TST) Range

Ambient Operating Temperature

(TA) Range

Rating

−0.5 V to +3.6 V

−0.5 V to VDDI + 0.5 V

−0.5 V to VDD2 + 0.5 V

−10 mA to +10 mA

−10 mA to +10 mA

−100 kV/µs to +100 kV/µs

−65°C to +150°C

−40°C to +125°C

1 See Figure 3 for maximum safety power values for various temperatures.

2 Refers to common-mode transients across the insulation barrier. Common-mode

transients exceeding the absolute maximum ratings can cause latch-up or

permanent damage.

Stresses above those listed under Absolute Maximum Ratings

may cause permanent damage to the device. This is a stress

rating only; functional operation of the device at these or any

other conditions above those indicated in the operational

section of this specification is not implied. Exposure to absolute

maximum rating conditions for extended periods may affect

device reliability.

Table 17. Maximum Continuous Working Voltage1

Parameter

Value Constraint

AC Voltage

60 Hz Bipolar Waveform 565 VPEAK 50-year minimum lifetime

60 Hz Unipolar Waveform

Basic Insulation

DC Voltage

975 VPEAK 50-year minimum lifetime

Basic Insulation

975 VPEAK 50-year minimum lifetime

1 Refers to continuous voltage magnitude imposed across the isolation

barrier. See the Insulation Lifetime section for more details.

ESD CAUTION

Table 18. Truth Table (Positive Logic) for all Models

VIxInput1, 2 VDDI State3 VDDO State4 ENx Input1

H

Powered Powered L

L

Powered Powered L

H

Powered Powered H

L

Powered Powered H

L

Unpowered Powered L

VOx Output1

H

L

H

L5

Default

L

Unpowered Powered H

Hold

Description

Normal operation; data is high and refresh is enabled.

Normal operation; data is low and refresh is enabled.

Output is high, and refresh is disabled.

Output is low, and refresh is disabled.

Input unpowered. Outputs are in the default state, high for

ADuM1440, ADuM1441, and ADuM1442, and low

ADuM1445, ADuM1446, and ADuM1447. Outputs return to

input state within 150 µs of VDDI power restoration. See the

pin function descriptions (Table 19 through Table 21) for

more details.

Input unpowered. Outputs are the last state before input

power is shut down.

X

Powered Unpowered X

Z

Output unpowered. Output pins are in high impedance

state. Outputs return to input state within 34 µs of VDDO power

restoration. See the pin function descriptions (Table 19

through Table 21) for more details.

1 H = high, L = low, X = don’t care, and Z = high impedance.

2 VIx and VOx refer to the input and output signals of a given channel (A, B, C, or D).

3 VDDI refers to the power supply on the input side of a given channel (A, B, C, or D).

4 VDDO refers to the power supply on the output side of a given channel (A, B, C, or D).

5 Low input must follow a falling edge; otherwise, it can be in the default low state.

Rev. 0 | Page 11 of 24

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