SI8420 SILABS [Silicon Laboratories], SI8420 Datasheet

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SI8420

Manufacturer Part Number
SI8420
Description
SINGLE & DUAL-CHANNEL DIGITAL ISOLATORS
Manufacturer
SILABS [Silicon Laboratories]
Datasheet

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S
Features
Applications
Safety Regulatory Approvals
Description
The Silicon Laboratories family of digital isolators are CMOS devices that
employ an RF coupler to transmit digital information across an isolation
barrier. Very high speed operation at low power levels is achieved. These
parts are available in an 8-pin narrow-body SOIC package. Three speed
grade options (1, 10, and 150 Mbps) are available and achieve typical
propagation delays of less than 10 ns.
Block Diagram
Preliminary Rev. 0.1 5/07
A1
I N G L E
High-speed operation
Low propagation delay
Wide Operating Supply Voltage:
2.375–5.5 V
Low power
Precise timing
Isolated switch mode supplies
Isolated ADC, DAC
UL recognition:2500 Vrms for 1
Minute per UL1577
CSA component acceptance
notice
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
100 Mbps
DC – 150 Mbps
<10 ns
I1 + I2 < 12 mA/channel at
2 ns pulse width distortion
1 ns channel-channel matching
2 ns pulse width skew
Si8410
& D
B1
U A L
A1
A2
- C
Si8420
Copyright © 2007 by Silicon Laboratories
H A N N E L
2500 V
Transient Immunity
DC correct
No start-up initialization required
<10 µs Startup Time
High temperature operation
Narrow body SOIC-8 package
Motor control
Power factor correction systems
IEC certification conformity
>25 kV/µs
125 °C at 100 Mbps
100 °C at 150 Mbps
IEC 60747-5-2
(VDE0884 Part 2)
B1
B2
RMS
A1
A2
isolation
D
I G I TA L
Si8421
B1
B2
I
S O L A T O R S
S i 8 4 1 0 / 2 0 / 2 1
GND1
GND1
V
V
V
DD1
A1
A2
DD1
A1
DD1
Narrow Body SOIC
Pin Assignments
1
2
3
4
1
2
3
4
Top View
Top View
Si842x
Si841x
8
7
6
5
8
7
6
5
Si8410/20/21
B1
B2
GND2
GND2
B1
GND2
V
V
DD2
DD2

Related parts for SI8420

SI8420 Summary of contents

Page 1

... Very high speed operation at low power levels is achieved. These parts are available in an 8-pin narrow-body SOIC package. Three speed grade options (1, 10, and 150 Mbps) are available and achieve typical propagation delays of less than 10 ns. Block Diagram Si8410 Si8420 Preliminary Rev. 0.1 5/07 This information applies to a product under development ...

Page 2

Si8410/20/21 2 Preliminary Rev. 0.1 ...

Page 3

Section 1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . ...

Page 4

... Si8421-A,-B,-C, V DD2 10 Mbps Supply Current (All inputs = 5 MHz square wave all outputs) Si8410-B,-C, V DD1 Si8410-B,-C, V DD2 Si8420-B,-C, V DD1 Si8420-B,-C, V DD2 Si8421-B,-C, V DD1 Si8421-B,-C, V DD2 100 Mbps Supply Current (All inputs = 50 MHz square wave all outputs) Si8410-C, V DD1 ...

Page 5

Table 1. Electrical Characteristics (Continued –40 to 125 ºC) DD1 DD2 A Parameter Symbol Maximum Data Rate Minimum Pulse Width Propagation Delay t PHL Pulse Width Distortion | ...

Page 6

Si8410/20/21 Table 1. Electrical Characteristics (Continued –40 to 125 ºC) DD1 DD2 A Parameter Symbol Output Rise Time Output Fall Time Common Mode Transient Immunity 2 Start-up Time Notes: 1. ...

Page 7

... Si8421-A,-B,-C, V DD2 10 Mbps Supply Current (All inputs = 5 MHz square wave all outputs) Si8410-B,-C, V DD1 Si8410-B,-C, V DD2 Si8420-B,-C, V DD1 Si8420-B,-C, V DD2 Si8421-B,-C, V DD1 Si8421-B,-C, V DD2 100 Mbps Supply Current (All inputs = 50 MHz square wave all outputs) Si8410-C, V DD1 ...

Page 8

Si8410/20/21 Table 2. Electrical Characteristics (Continued 3 3 –40 to 125 °C) DD1 DD2 A Parameter Si841x/2x-A Maximum Data Rate Minimum Pulse Width Propagation Delay Pulse Width Distortion |t – ...

Page 9

Table 2. Electrical Characteristics (Continued 3 3 –40 to 125 °C) DD1 DD2 A Parameter Output Rise Time Output Fall Time Common Mode Transient Immunity 2 Start-up Time Notes ...

Page 10

... Si8421-A,-B,-C, V DD2 10 Mbps Supply Current (All inputs = 5 MHz square wave all outputs) Si8410-B,-C, V DD1 Si8410-B,-C, V DD2 Si8420-B,-C, V DD1 Si8420-B,-C, V DD2 Si8421-B,-C, V DD1 Si8421-B,-C, V DD2 100 Mbps Supply Current (All inputs = 50 MHz square wave all outputs) Si8410-C, V DD1 ...

Page 11

Table 3. Electrical Characteristics (Continued 2 2 –40 to 100 °C) DD1 DD2 A Parameter Maximum Data Rate Minimum Pulse Width Propagation Delay Pulse Width Distortion | PLH PHL ...

Page 12

Si8410/20/21 Table 3. Electrical Characteristics (Continued 2 2 –40 to 100 °C) DD1 DD2 A Parameter Output Rise Time Output Fall Time Common Mode Transient Immunity 2 Start-up Time Notes ...

Page 13

Table 4. Absolute Maximum Ratings Parameter Storage Temperature Operating Temperature Supply Voltage Input Voltage Output Voltage Output Current Drive Channel Lead Solder Temperature (10s) Maximum Isolation Voltage Note: Permanent device damage may occur if the above Absolute Maximum Ratings are ...

Page 14

Si8410/20/21 Table 6. Regulatory Information CSA The Si84xx is certified under CSA Component Acceptance Notice. For more details, see File 232873. VDE The Si84xx is certified according to IEC 60747-5-2. For more details, see File 5006301-4880-0001. UL The Si84xx is ...

Page 15

Table 8. IEC 60664-1 (VDE 0844 Part 2) Ratings Parameter Basic isolation group Material Group Rated Mains Voltages < 150 V Rated Mains Voltages < 300 V Installation Classification Rated Mains Voltages < 400 V Table 9. IEC 60747-5-2 Insulation ...

Page 16

... Si8410/20/21 Table 11. Thermal Characteristics Parameter IC Junction-to-Case Thermal Resistance IC Junction-to-Air Thermal Resistance Device Power Dissipation* *Note: The Si8420-C-IS is tested with V square wave. 100 Figure 2. Thermal Derating Curve, Dependence of Safety Limiting Values with Case Temperature per DIN EN 60747-5-2 ...

Page 17

... Data Rate (Mbps) Figure 5. Si8420 Typical V DD1 vs. Data Rate 5, 3.3, and 2.5 V Operation 3. 100 0 10 Figure 6. Si8420 Typical V Supply Current vs. Data Rate 5, 3.3, and 2.5 V Operation 100 Supply Current Figure 7. Si8421 Typical V Current vs. Data Rate 5, 3.3, and 2 ...

Page 18

Si8410/20/ Falling Edge 7 6 Rising Edge 5 -40 - Temperature (Degrees C) Figure 8. Propagation Delay vs. Temperature 5 V Operation Falling Edge -40 -20 0 ...

Page 19

Application Information 3.1. Theory of Operation The operation of an Si841x or Si842x channel is analogous to that of an opto coupler, except that an RF carrier is modulated instead of light. This simple architecture provides a robust isolated ...

Page 20

Si8410/20/21 4. Layout Recommendations Dielectric isolation is a set of specifications produced by safety regulatory agencies from around the world, which describes the physical construction of electrical equipment that derives power from high-voltage power systems, such as 100–240 V systems ...

Page 21

Input and Output Characteristics The Si841x and Si842x inputs and outputs are standard CMOS drivers/receivers. Table 12 details powered and unpowered operation of the Si84xx. 1,4 1,2,3 V Input VDDI State VDDO State ...

Page 22

Si8410/20/21 4.4. RF Immunity and Common Mode Transient Immunity The Si841x and Si842x families have very high common mode transient immunity while transmitting data. This is typically measured by applying a square pulse with very fast rise/fall times between the ...

Page 23

... DD2 GND2 5 DD2 DD1 7 2 GND2 GND2 4 GND1 Narrow Body SOIC SOIC-8 Pin# Type Si8420/21 1 Supply 4 Ground 2 Digital I/O 3 Digital I/O 7 Digital I/O 6 Digital I/O 8 Supply 5 Ground Preliminary Rev. 0.1 Si8410/20/21 Si842x 8 V DD2 GND2 Top View Description Side 1 power supply ...

Page 24

... V Side DD1 Si8410-A-IS 1 Si8410-B-IS 1 Si8410-C-IS 1 Si8420-A-IS 2 Si8420-B-IS 2 Si8420-C-IS 2 Si8421-A-IS 1 Si8421-B-IS 1 Si8421-C-IS 1 Note: All packages are Pb-free and RoHS Compliant. Moisture sensitivity level is MSL2 with peak reflow temperature of °C 260 according to the JEDEC industry standard classifications and peak solder temperature. 24 Number of Inputs ...

Page 25

Package Outline: 8-Pin SOIC Figure 16 illustrates the package details for the Si84xx. Table 14 lists the values for the dimensions shown in the illustration. Figure 16. 8-pin Small Outline Integrated Circuit (SOIC) Package Table 14. Package Diagram Dimensions ...

Page 26

Si8410/20/ ONTACT NFORMATION Silicon Laboratories Inc. 400 West Cesar Chavez Austin, TX 78701 Tel: 1+(512) 416-8500 Fax: 1+(512) 416-9669 Toll Free: 1+(877) 444-3032 Email: PowerProducts@silabs.com Internet: www.silabs.com The information in this document is believed to be accurate in ...

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