SI8455 datasheet, PDF - EEWORLD Datasheet

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SI8455: DescriptionLOW POWER FIVE-CHANNEL DIGITAL ISOLATOR; File Size440KB，36 Pages; ManufacturerETC2

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SI8455 Overview

LOW POWER FIVE-CHANNEL DIGITAL ISOLATOR

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Si8450/51/52/55

O W

O W E R

I V E

- C

H A N N E L

I G I TA L

S O L A T O R

Features



High-speed operation





Up to 2500 V

RMS

isolation

1.6 mA per channel at 1 Mbps



< 6 mA per channel at 100 Mbps



Transient Immunity 25 kV/µs



< 1.4 mA per channel at 1 Mbps



Wide temperature range

2.70 V Operation:



4 mA per channel at 100 Mbps



High electromagnetic immunity

Applications



Industrial automation systems



Hybrid electric vehicles



Isolated switch mode supplies

Safety Regulatory Approvals



UL 1577 recognized



to 2500 V

RMS

for 1 minute

CSA component notice 5A

approval



IEC

60950-1, 61010-1

(reinforced

insulation)

Description

Silicon Lab's family of ultra-low-power digital isolators are CMOS

devices offering substantial data rate, propagation delay, power, size,

reliability, and external BOM advantages when compared to legacy

isolation technologies. The operating parameters of these products

remain stable across wide temperature ranges throughout their

service life. For ease of design, only VDD bypass capacitors are

required.

Data rates up to 150 Mbps are supported, and all devices achieve

worst-case propagation delays of less than 10 ns. All products are

safety certified by UL, CSA, and VDE and support withstand voltages

of up to 2.5 kVrms. These devices are available in a 16-pin narrow-

body SOIC package.

Rev. 1.5 9/13

fo R

r N ec

D e

e s nd

ig e

ns d

ns propagation delay skew



6 ns minimum pulse width



60-year life at rated working



No start-up initialization required

voltage



Wide Operating Supply Voltage:



Precise timing (typical)

2.70–5.5 V



<10 ns worst case



Ultra-low-power (typical)



1.5 ns pulse width distortion

5 V Operation:



0.5 ns channel-channel skew

to 150 Mbps



Ordering Information:

See page 29.



–40

to 125 °C at 150 Mbps

narrow body



RoHS-compliant packages



SOIC-16



Isolated ADC, DAC



Motor control



Power inverters



Communications systems



VDE certification conformity



IEC

60747-5-2

(VDE0884 Part 2)

Si8450/51/52/55

Si8450/51/52/55

ABLE O F

ONTENTS

Section

Page

fo R

r N ec

D e

e s nd

ig e

ns d

Rev. 1.5

1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

2. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.1. Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.2. Eye Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.3. Device Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2.4. Layout Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.5. Typical Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3. Errata and Design Migration Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.1. Enable Pin Causes Outputs to Go Low (Revision A Only) . . . . . . . . . . . . . . . . . . . . 26

3.2. Power Supply Bypass Capacitors (Revision A and Revision B) . . . . . . . . . . . . . . . . 26

3.3. Latch Up Immunity (Revision A Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4. Pin Descriptions (Si8450/51/52) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5. Pin Descriptions (Si8455) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

6. Ordering Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

7. Package Outline: 16-Pin Narrow Body SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

8. Land Pattern: 16-Pin Narrow Body SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

9. Top Marking: 16-Pin Narrow Body SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

9.1. 16-Pin Narrow Body SOIC Top Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

9.2. Top Marking Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

Document Change List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

SI8455 Related Products

	SI8455	SI8450	SI8451	SI8452
Description	LOW POWER FIVE-CHANNEL DIGITAL ISOLATOR	LOW POWER FIVE-CHANNEL DIGITAL ISOLATOR	LOW POWER FIVE-CHANNEL DIGITAL ISOLATOR	LOW POWER FIVE-CHANNEL DIGITAL ISOLATOR

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