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SI8405AB-B-IS1R

Description
Digital Isolators 2.5kV Bidrect I2C Isoltr/2UniCH 1.7MHz
Categorysemiconductor    Analog mixed-signal IC   
File Size415KB,34 Pages
ManufacturerSilicon Laboratories
Environmental Compliance
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SI8405AB-B-IS1R Overview

Digital Isolators 2.5kV Bidrect I2C Isoltr/2UniCH 1.7MHz

SI8405AB-B-IS1R Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerSilicon Laboratories
Product CategoryDigital Isolators
RoHSDetails
PolarityBidirectional, Unidirectional
Isolation TypeCapacitive Coupling
Supply Voltage - Max5.5 V
Supply Voltage - Min3 V
PackagingReel
ProductDigital Isolators
TypeBidirectional I2C Isolator
Moisture SensitiveYes
Operating Supply Voltage3 V to 5.5 V
Pd - Power Dissipation275 W
Protocol SupportedI2C
Factory Pack Quantity2500
Unit Weight0.006637 oz
Si840x
B
IDIRECTIONAL
I
2
C I
SOLA TORS
D
IGITA L
C
HANNELS
Features
WITH
U
NIDIRECTIONAL
Applications
Isolated I
2
C, PMBus, SMBus
Power over Ethernet
Motor Control Systems
Description
The Si840x series of isolators are single-package galvanic isolation
solutions for I
2
C and SMBus serial port applications. These products are
based on Silicon Labs proprietary RF isolation technology and offer shorter
propagation delays, lower power consumption, smaller installed size, and
more stable operation with temperature and age versus opto couplers or
other digital isolators.
All devices in this family include hot-swap, bidirectional SDA and SCL
isolation channels with open-drain, 35 mA sink capability and operate to a
maximum frequency of 1.7 MHz. The 8-pin version (Si8400/01) supports
bidirectional SDA and SCL isolation; the Si8402 supports bidirectional SDA
and unidirectional SCL isolation, and the 16-pin version (Si8405) features
two unidirectional isolation channels to support additional system signals,
such as an interrupt or reset. All versions contain protection circuits to
guard against data errors if an unpowered device is inserted into a powered
system.
Small size, low installed cost, low power consumption, and short
propagation delays make the Si840x family the optimum solution for
isolating I
2
C and SMBus serial ports.
Safety Regulatory Approval
UL 1577 recognized

Up to 2500 V
RMS
for 1 minute
CSA component notice 5A approval

IEC 60950-1, 61010-1
(reinforced
insulation)
Rev. 1.6 10/13
N
ot
fo R
r N ec
e w om
m
D e
es n
ig de
ns d
Hot-swap applications
Intelligent Power systems
Isolated SMPS systems with
PMBus interfaces
to 5.5 V

Supports
clocks up to 1.7 MHz
Wide temperature range

–40 to +125 °C max
Unidirectional isolation channels
support additional system signals
Transient immunity 25 kV/µs
(Si8405)
RoHS-compliant packages
Up to 2500 V
RMS
isolation

SOIC-8 narrow body

SOIC-16 narrow body
UL, CSA, VDE recognition
I
2
C
Independent, bidirectional SDA and
SCL isolation channels

Open drain outputs with 35 mA
sink current
60-year life at rated working voltage
High electromagnetic immunity
Wide operating supply voltage

3.0
Ordering Information:
See page 25.
VDE certification conformity

IEC 60747-5-2
(VDE0884 Part 2)
Copyright © 2013 by Silicon Laboratories
Si840x

SI8405AB-B-IS1R Related Products

SI8405AB-B-IS1R Si8400AB-A-IS SI8401AB-B-ISR SI8400AB-B-ISR SI8405AA-B-IS1R SI8405AB-A-IS1R SI8401AA-B-ISR SI8400AA-B-ISR Si8402AB-B-ISR SI8400AA-A-ISR
Description Digital Isolators 2.5kV Bidrect I2C Isoltr/2UniCH 1.7MHz Digital Isolators 2.5 kV Bidirectional I2C Isolator 1.7MHz Digital Isolators 2.5 kV Bidirect I2C Isolator 1.7MHz Digital Isolators 2.5 kV Bidirectional I2C Isolator 1.7MHz Digital Isolators 1kV Bidrect I2C Isoltr/2UniCH 1.7MHz Digital Isolators 2.5kV Bidrect I2C Isoltr/2UniCH 1.7MHz Digital Isolators 1kV Bidirect I2C Iso 1.7MHz ADuM Digital Isolators 1.0 kV Bidirectional I2C Isolator 1.7MHz Digital Isolators 2.5 KV BIDIRECTIONAL I2C ISOLATOR 1.7MHz Digital Isolators
Product Attribute Attribute Value Attribute Value Attribute Value Attribute Value Attribute Value Attribute Value Attribute Value Attribute Value Attribute Value Attribute Value
Manufacturer Silicon Laboratories Silicon Laboratories Silicon Laboratories Silicon Laboratories Silicon Laboratories Silicon Laboratories Silicon Laboratories Silicon Laboratories Silicon Laboratories Silicon Laboratories
Product Category Digital Isolators Digital Isolators Digital Isolators Digital Isolators Digital Isolators Digital Isolators Digital Isolators Digital Isolators Digital Isolators Digital Isolators
Isolation Type Capacitive Coupling Capacitive Coupling Capacitive Coupling Capacitive Coupling Capacitive Coupling Capacitive Coupling Capacitive Coupling Capacitive Coupling Capacitive Coupling Capacitive Coupling
Supply Voltage - Max 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V
Supply Voltage - Min 3 V 3 V 3 V 3 V 3 V 3 V 3 V 3 V 3 V 3 V
RoHS Details Details Details Details Details Details Details Details Details -
Polarity Bidirectional, Unidirectional - Bidirectional Bidirectional Bidirectional, Unidirectional - Bidirectional Bidirectional Bidirectional, Unidirectional -
Packaging Reel - Reel Reel Reel Box Reel Reel Tube -
Product Digital Isolators - Digital Isolators Digital Isolators Digital Isolators - Digital Isolators Digital Isolators Digital Isolators -
Type Bidirectional I2C Isolator - Bidirectional I2C Isolator Bidirectional I2C Isolator Bidirectional I2C Isolator - Bidirectional I2C Isolator Bidirectional I2C Isolator Bidirectional I2C Isolator -
Moisture Sensitive Yes Yes Yes Yes Yes Yes Yes Yes Yes -
Operating Supply Voltage 3 V to 5.5 V 3 V to 5.5 V 3 V to 5.5 V 3 V to 5.5 V 3 V to 5.5 V 3 V to 5.5 V 3 V to 5.5 V 3 V to 5.5 V - 3 V to 5.5 V
Pd - Power Dissipation 275 W - 220 mW - 275 W 275 W 220 mW - 220 W -
Protocol Supported I2C - I2C I2C I2C - I2C I2C I2C -
Factory Pack Quantity 2500 2500 2500 2500 2500 2500 2500 2500 96 -
Unit Weight 0.006637 oz 0.003365 oz - 0.003365 oz 0.006637 oz 0.006637 oz - 0.003365 oz 0.003365 oz 0.003365 oz
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