ADUM5403 datasheet(7/24 Pages) AD

Part #	ADUM5403

Description	Quad-Channel, 2.5 kV Isolators with Integrated DC-to-DC Converter

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Data Sheet

ADuM5401W/ADuM5402W/ADuM5403W

Rev. D | Page 7 of 24

ELECTRICAL CHARACTERISTICS—5 V PRIMARY INPUT SUPPLY/3.3 V SECONDARY ISOLATED SUPPLY

Typical specifications are at TA = 25°C, VDD1 = 5.0 V, VISO = 3.3 V, VSEL = GNDISO. Minimum/maximum specifications apply over the

entire recommended operation range, which is 4.5 V ≤ VDD1 ≤ 5.5 V, 3.0 V ≤ VISO ≤ 3.6 V, and −40°C ≤ TA ≤ +105°C, unless otherwise

noted. Switching specifications are tested with CL = 15 pF and CMOS signal levels, unless otherwise noted.

Table 10. DC-to-DC Converter Static Specifications

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions/Comments

DC-TO-DC CONVERTER SUPPLY

Setpoint

VISO

3.0

3.3

3.6

V

IISO = 0 mA

Line Regulation

VISO (LINE)

1

mV/V

IISO = 50 mA, VDD1 = 3.0 V to 3.6 V

Load Regulation

VISO (LOAD)

1

5

%

IISO = 6 mA to 54 mA

Output Ripple

VISO (RIP)

50

mV p-p

20 MHz bandwidth, CBO = 0.1 µF||10 µF,

IISO = 90 mA

Output Noise

VISO (NOISE)

130

mV p-p

CBO = 0.1 µF||10 µF, IISO = 90 mA

Switching Frequency

fOSC

180

MHz

PWM Frequency

fPWM

625

kHz

Output Supply Current

IISO (MAX)

100

mA

VISO > 3 V

Efficiency at IISO (MAX)

30

%

IISO = 90 mA

IDD1, No VISO Load

IDD1 (Q)

14

22

mA

IDD1, Full VISO Load

IDD1 (MAX)

230

mA

Table 11. DC-to-DC Converter Dynamic Specifications

Parameter

Symbol

25 Mbps—C Grade

Unit

Test Conditions/Comments

Min

Typ

Max

SUPPLY CURRENT

Input

IDD1

ADuM5401W

44

mA

No VISO load

ADuM5402W

45

mA

No VISO load

ADuM5403W

46

mA

No VISO load

Available to Load

IISO (LOAD)

ADuM5401W

92

mA

ADuM5402W

91

mA

ADuM5403W

89

mA

Table 12. Switching Specifications

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions/Comments

SWITCHING SPECIFICATIONS

Data Rate

25

Mbps

Within PWD limit

Propagation Delay

tPHL, tPLH

45

60

ns

50% input to 50% output

Pulse Width Distortion

PWD

6

ns

|tPLH − tPHL|

Change vs. Temperature

5

ps/°C

Pulse Width

PW

40

ns

Within PWD limit

Propagation Delay Skew

tPSK

15

ns

Between any two units

Channel Matching

Codirectional1

tPSKCD

6

ns

Opposing Directional2

tPSKOD

15

ns

1

Codirectional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of the isolation

barrier.

2

Opposing directional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on opposing sides of the

isolation barrier.

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