ADUM7440ARQZ(Rev0) データシートの表示（PDF） - Analog Devices

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ADUM7440ARQZ
(Rev.:Rev0)

1 kV RMS Quad-Channel Digital Isolators

Analog Devices 

ADuM7440/ADuM7441/ADuM7442

PACKAGE CHARACTERISTICS

Table 12.

Parameter

Resistance (Input-to-Output)1

Capacitance (Input-to-Output)1

Input Capacitance2

IC Junction-to-Ambient Thermal

Resistance

Symbol Min Typ Max Unit Test Conditions

RI-O

1013

Ω

CI-O

2

pF f = 1 MHz

CI

4.0

pF

θJA

76

°C/W Thermocouple located at center of package

underside

1 The device is considered a 2-terminal device: Pin 1 through Pin 8 are shorted together and Pin 9 through Pin 16 are shorted together.

2 Input capacitance is from any input data pin to ground.

REGULATORY INFORMATION

The ADuM744x is approved by the organizations listed in Table 13. See Table 17 and the Insulation Lifetime section for recommended

maximum working voltages for specific cross-isolation waveforms and insulation levels.

Table 13.

UL (pending)

Recognized under UL 1577 Component

Recognition Program1

Single Protection,

1000 V rms Isolation Voltage

File E274400

CSA (Pending)

Approved under CSA Component

Acceptance Notice #5A

Basic insulation per CSA 60950-1-03 and IEC 60950-1, 148 V rms (210 V peak)

maximum working voltage

File 205078

1 In accordance with UL 1577, each ADuM744x is proof tested by applying an insulation test voltage ≥1200 V rms for 1 sec (current leakage detection limit = 5 μA).

INSULATION AND SAFETY-RELATED SPECIFICATIONS

Table 14.

Parameter

Rated Dielectric Insulation Voltage

Minimum External Air Gap (Clearance)

Symbol Value

1000

L(I01) 3.8

Minimum External Tracking (Creepage)

L(I02) 2.8

Minimum Internal Gap (Internal Clearance)

Tracking Resistance (Comparative Tracking Index) CTI

Isolation Group

2.6

>175

IIIa

Unit

V rms

mm min

mm min

μm min

V

Conditions

1-minute duration

Measured from input terminals to output terminals,

shortest distance through air

Measured from input terminals to output terminals,

shortest distance path along body

Insulation distance through insulation

DIN IEC 112/VDE 0303 Part 1

Material Group (DIN VDE 0110, 1/89, Table 1)

350

300

250

200

150

100

50

0

0

50

100

150

200

CASE TEMPERATURE (°C)

Figure 4. Thermal Derating Curve, Dependence of Safety-Limiting Values

with Case Temperature per DIN V VDE V 0884-10

RECOMMENDED OPERATING CONDITIONS

Table 15.

Parameter

Symbol Min Max Unit

Operating Temperature

Supply Voltages1

TA

−40 +105 °C

VDD1, VDD2 3.0 5.5 V

Input Signal Rise and Fall Times

1.0 ms

1 All voltages are relative to their respective ground. See the DC Correctness

and Magnetic Field Immunity section for information on immunity to external

magnetic fields.

Rev. 0 | Page 7 of 20

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