Si8401AA-B-IS datasheet(8/34 Pages) SILABS

Part #	Si8401AA-B-IS

Description	BIDIRECTIONAL I2C ISOLATORS WITH UNIDIRECTIONAL DIGITAL CHANNELS

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Manufacturer	SILABS [Silicon Laboratories]

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8 / 34 page

Si840x

8

Rev. 1.6

Figure 1. Propagation Delay Timing (Non-I2C Channels)

1.1. Test Circuits

Figure 2 depicts the timing test diagram.

Figure 2. Simplified Timing Test Diagram

Table 5. Electrical Characteristics for All I2C and Non-I2C Channels

3.0 V < VDD < 5.5 V. TA = –40 to +125 °C. Typical specs at 25 °C

Parameter

Symbol

Test Condition

Min

Typ Max

Unit

VDD Undervoltage Threshold

VDDUV+

AVDD, BVDD rising

2.15

2.3

2.5

V

VDD Negative-going Lockout

Hysteresis

VDDH–

AVDD, BVDD falling

45

75

95

mV

Common Mode Transient

Immunity

CMTI

VI =VDD or 0 V

—

25

—

kV/µs

Shut Down Time from UVLO

tSD

—3.0

—

µs

Start-up Time*

tSTART

—15

40

µs

*Note: Start-up time is the time period from the application of power to valid data at the output.

Typical

Input

tPLH

tPHL

Typical

Output

tr

tf

90%

10%

90%

10%

1.4 V

AVDD

NC

BVDD

NC

ADOUT

BDIN

ASDA

BSDA

ASCL

BSCL

ADIN

BDOUT

AGND

BGND

Si840x

C1

C3

R1

R2

C3

C2

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