ADUM5404CRWZ【PDF 6/28 页】IC ISOLATOR 4CH DCDC CONV 16SOIC

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ADuM5401/ADuM5402/ADuM5403/ADuM5404

Data Sheet

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

Typical specifications are at T A = 25°C, V DD1 = V ISO = 3.3 V, V SEL = GND ISO . Minimum/maximum specifications apply over the entire

recommended operation range which is 3.0 V ≤ V DD1 , V SEL , V ISO ≤ 3.6 V; and ?40°C ≤ T A ≤ +105°C, unless otherwise noted. Switching

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

Table 6. DC-to-DC Converter Static Specifications

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions/Comments

DC-TO-DC CONVERTER SUPPLY

Setpoint

Line Regulation

Load Regulation

Output Ripple

Output Noise

V ISO

V ISO (LINE)

V ISO (LOAD)

V ISO (RIP)

V ISO (NOISE)

3.0

3.3

1

1

50

130

3.6

5

V

mV/V

%

mV p-p

mV p-p

I ISO = 0 mA

I ISO = 30 mA, V DD1 = 3.0 V to 3.6 V

I ISO = 6 mA to 54 mA

20 MHz bandwidth, C BO = 0.1 μF||10 μF, I ISO = 54 mA

C BO = 0.1 μF||10 μF, I ISO = 54 mA

Switching Frequency

PWM Frequency

f OSC

f PWM

180

625

MHz

kHz

Output Supply Current

Efficiency at I ISO (MAX)

I ISO (MAX)

60

33

mA

%

V ISO > 3 V

I ISO = 60 mA

I DD1 , No V ISO Load

I DD1 , Full V ISO Load

I DD1 (Q)

I DD1 (MAX)

14

175

20

mA

mA

Table 7. DC-to-DC Converter Dynamic Specifications

1 Mbps—A or C Grade

25 Mbps—C Grade

Parameter

Symbol

Min

Typ

Max

Min

Typ

Max

Unit

Test Conditions/Comments

SUPPLY CURRENT

Input

I DD1

ADuM5401

ADuM5402

ADuM5403

ADuM5404

14

14

14

14

44

46

47

51

mA

mA

mA

mA

No V ISO load

No V ISO load

No V ISO load

No V ISO load

Available to Load

I ISO (LOAD)

ADuM5401

ADuM5402

ADuM5403

ADuM5404

60

60

60

60

52

51

49

48

mA

mA

mA

mA

Table 8. Switching Specifications

A Grade

C Grade

Parameter

Symbol

Min

Typ

Max

Min

Typ

Max

Unit

Test Conditions/Comments

SWITCHING SPECIFICATIONS

Data Rate

1

25

Mbps

Within PWD limit

Propagation Delay

Pulse Width Distortion

t PHL , t PLH

PWD

60

100

40

45

60

6

ns

ns

50% input to 50% output

|t PLH ? t PHL |

Change vs. Temperature

5

ps/°C

Pulse Width

Propagation Delay Skew

PW

t PSK

1000

50

40

45

ns

ns

Within PWD limit

Between any two units

Channel Matching

Codirectional 1

Opposing Directional 2

t PSKCD

t PSKOD

50

50

6

15

ns

ns

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

1

2

7

barrier.

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.

Rev. C | Page 6 of 28

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