SI8421BB-C-IS Silicon Laboratories Inc, SI8421BB-C-IS Datasheet

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SI8421BB-C-IS

Manufacturer Part Number
SI8421BB-C-IS
Description
Manufacturer
Silicon Laboratories Inc
Datasheet

Specifications of SI8421BB-C-IS

Operating Supply Voltage (typ)
3.3/5V
Lead Free Status / RoHS Status
Compliant
I S O
Features
Applications
Safety Regulatory Approvals
Description
The Silicon Laboratories’ family of ultra low power 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 devices are available in an 8-pin narrow-body SOIC
package. Two speed grade options (1 and 150 Mbps) are available and
achieve worst-case propagation delays of less than 10 ns.
Block Diagram
Rev. 1.2 12/09
A1
High-speed operation

Low propagation delay

Wide Operating Supply Voltage:
2.70–5.5 V
Ultra low power (typical)
5 V Operation:



2.70 V Operation:



Isolated switch mode supplies
Isolated ADC, DAC
UL 1577 recognized

CSA component notice 5A approval

DC to 150 Mbps
<10 ns worst case
< 2.1 mA per channel at 1 Mbps
< 2.4 mA per channel at 10 Mbps
< 6 mA per channel at 100 Mbps
< 1.8 mA per channel at 1 Mbps
< 2.1 mA per channel at 10 Mbps
< 4 mA per channel at 100 Mbps
2500 V
IEC 60950, 61010 approved
P R O
Si8410
RMS
L
O W
for 1 minute
B1
- P
O W E R
A1
A2
Si8420
S
Copyright © 2009 by Silicon Laboratories
ING L E A N D
Precise timing (typical)



Up to 2500 V
Transient Immunity

DC correct
No start-up initialization required
15 µs startup time
High temperature operation

Narrow body SOIC-8 package
RoHS compliant
Motor control
Power factor correction systems
VDE certification conformity

1.5 ns pulse width distortion
0.5 ns channel-channel skew
2 ns propagation delay skew
25 kV/µs
125 °C at 150 Mbps
IEC 60747-5-2
(VDE0884 Part 2)
B1
B2
A1
A2
RMS
D
U A L
isolation
Si8421
- C
H A N N E L
B1
B2
Patents pending
S i 8 4 1 0 / 2 0 / 2 1
GND1
GND1
V
V
D
V
DD1
A1
A2
DD1
A1
DD1
I G ITA L
Narrow Body SOIC
Pin Assignments
1
2
3
4
1
2
3
4
Top View
Top View
Si842x
Si841x
I
SO LA TO R S
8
7
6
5
8
7
6
5
Si8410/20/21
B1
B2
GND2
GND2
B1
GND2
V
V
DD2
DD2

Related parts for SI8421BB-C-IS

SI8421BB-C-IS Summary of contents

Page 1

Features  High-speed operation DC to 150 Mbps   Low propagation delay <10 ns worst case   Wide Operating Supply Voltage: 2.70–5.5 V ...

Page 2

Si8410/20/21 2 Rev. 1.2 ...

Page 3

T C ABLE O F ONTENTS Section 1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 4

Si8410/20/21 1. Electrical Specifications Table 1. Electrical Characteristics ( ±10 ±10%, T DD1 DD2 A Symbol Parameter High Level Input Voltage Low Level Input Voltage High Level Output Voltage Low Level Output Voltage ...

Page 5

Table 1. Electrical Characteristics (Continued ±10 ±10%, T DD1 DD2 A Parameter Symbol 10 Mbps Supply Current (All inputs = 5 MHz square wave all outputs) Si8410Bx ...

Page 6

Si8410/20/21 Table 1. Electrical Characteristics (Continued ±10 ±10%, T DD1 DD2 A Parameter Symbol Si8410Ax, Si8420Ax, Si8421Ax Maximum Data Rate Minimum Pulse Width Propagation Delay t PHL Pulse Width Distortion |t - ...

Page 7

Table 2. Electrical Characteristics (V = 3.3 V ±10 3.3 V ±10%, T DD1 DD2 Parameter High Level Input Voltage Low Level Input Voltage High Level Output Voltage Low Level Output Voltage Input Leakage Current 1 Output Impedance ...

Page 8

Si8410/20/21 Table 2. Electrical Characteristics (Continued 3.3 V ±10 3.3 V ±10%, T DD1 DD2 Parameter 10 Mbps Supply Current (All inputs = 5 MHz square wave all outputs) Si8410Bx V ...

Page 9

Table 2. Electrical Characteristics (Continued 3.3 V ±10 3.3 V ±10%, T DD1 DD2 Parameter Si8410Bx, Si8420Bx, Si8421Bx Maximum Data Rate Minimum Pulse Width Propagation Delay Pulse Width Distortion |t – PLH PHL 2 ...

Page 10

Si8410/20/21 Table 3. Electrical Characteristics ( –40 to 125 °C) DD1 DD2 A Parameter High Level Input Voltage Low Level Input Voltage High Level Output Voltage Low Level Output Voltage Input ...

Page 11

Table 3. Electrical Characteristics ( –40 to 125 °C) DD1 DD2 A Parameter 10 Mbps Supply Current (All inputs = 5 MHz square wave all outputs) ...

Page 12

Si8410/20/21 Table 3. Electrical Characteristics ( –40 to 125 °C) DD1 DD2 A Parameter Si8410Bx, Si8420Bx, Si8421Bx Maximum Data Rate Minimum Pulse Width Propagation Delay Pulse Width Distortion | ...

Page 13

Table 4. Absolute Maximum Ratings Parameter 2 Storage Temperature Operating Temperature 3 Supply Voltage (Revision C) 3 Supply Voltage (Revision D) Input Voltage Output Voltage Output Current Drive Channel Lead Solder Temperature (10 s) Maximum Isolation Voltage (1 s) Notes: ...

Page 14

Si8410/20/21 Table 7. Insulation and Safety-Related Specifications Parameter 1 Nominal Air Gap (Clearance) Nominal External Tracking (Creepage) Minimum Internal Gap (Internal Clearance) Tracking Resistance (Comparative Tracking Index) 2 Resistance (Input-Output) 2 Capacitance (Input-Output) 3 Input Capacitance Notes: 1. The values ...

Page 15

Table 9. IEC 60747-5-2 Insulation Characteristics for Si84xxxB* Parameter Maximum Working Insulation Voltage Input to Output Test Voltage Highest Allowable Overvoltage (Transient Overvoltage sec) TR Pollution Degree (DIN VDE 0110, Table 1) Insulation Resistance ...

Page 16

Si8410/20/21 Table 11. Thermal Characteristics Parameter IC Junction-to-Air Thermal Resistance 400 320 300 270 200 160 100 0 0 Figure 2. (NB SOIC-8) Thermal Derating Curve, Dependence of Safety Limiting Values with Case Temperature per DIN EN 60747-5-2 Table 12. ...

Page 17

Typical Performance Characteristics The typical performance characteristics depicted in the following diagrams are for information purposes only. Refer to Tables 1, 2, and 3 for actual specification limits ...

Page 18

Si8410/20/21 3. Application Information 3.1. Theory of Operation The operation of an Si84xx channel is analogous to that of an opto coupler, except an RF carrier is modulated instead of light. This simple architecture provides a robust isolated data path ...

Page 19

Eye Diagram Figure 11 illustrates an eye-diagram taken on an Si8410. For the data source, the test used an Anritsu (MP1763C) Pulse Pattern Generator set to 1000 ns/div. The output of the generator's clock and data from an Si8410 ...

Page 20

Si8410/20/21 3.3. 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

RF Radiated Emissions The Si841x and Si842x families use an RF carrier frequency of approximately 700 MHz. This results in a small amount of radiated emissions at this frequency and its harmonics. The radiation is not from the IC ...

Page 22

Si8410/20/21 4. Errata and Design Migration Guidelines (Revision C Only) The following errata apply to Revision C devices only. See "6. Ordering Guide" on page 24 for more details. No errata exist for Revision D devices. 4.1. Power Supply Bypass ...

Page 23

Pin Descriptions Si841x 1 V DD1 DD1 4 GND1 Top View Name SOIC-8 Pin# Si8410 V 1,3 DD1 GND1 DD2 GND2 5 ...

Page 24

... Si8421AB-C- Si8421BB-C-IS 1 Notes: 1. All packages are RoHS-compliant. Moisture sensitivity level is MSL2A with peak reflow temperature of 260 °C according to the JEDEC industry standard classifications and peak solder temperature. 2. Revision C devices are supported for existing designs, but Revision D is recommended for all new designs. ...

Page 25

Package Outline: 8-Pin Narrow Body SOIC Figure 15 illustrates the package details for the Si841x. Table 16 lists the values for the dimensions shown in the illustration. Figure 15. 8-pin Small Outline Integrated Circuit (SOIC) Package Table 16. Package ...

Page 26

Si8410/20/21 8. Landing Pattern: 8-Pin Narrow Body SOIC Figure 16 illustrates the recommended landing pattern details for the Si841x in an 8-pin narrow-body SOIC. Table 17 lists the values for the dimensions shown in the illustration. Figure 16. PCB Landing ...

Page 27

Top Marking Line 1 Marking: Base Part Number Ordering Options (See Ordering Guide for more information). Line 2 Marking Year WW = Workweek R = Product (OPN) Revision F = Wafer Fab Line 3 Marking: Circle = ...

Page 28

Si8410/20/ OCUMENT HANGE IST Revision 0.11 to Revision 0.21  Rev 0.21 is the first revision of this document that applies to the new series of ultra low power isolators featuring pinout and functional compatibility with previous ...

Page 29

N : OTES Si8410/20/21 Rev. 1.2 29 ...

Page 30

... Should Buyer purchase or use Silicon Laboratories products for any such unintended or unauthorized ap- plication, Buyer shall indemnify and hold Silicon Laboratories harmless against all claims and damages. Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc. Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders. ...

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