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SI88321BD-ISR

Description
Digital isolators 5kV high speed digital isolators with integrated DCDC converter
Categorysemiconductor    The interface of IC    Digital isolator   
File Size943KB,48 Pages
ManufacturerSilicon Labs
Websitehttps://www.silabs.com
Environmental Compliance
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SI88321BD-ISR Overview

Digital isolators 5kV high speed digital isolators with integrated DCDC converter

SI88321BD-ISR Parametric

Parameter NameAttribute value
MakerSilicon Labs
Product Categorydigital isolator
Installation styleSMD/SMT
Package/boxSOIC-20
seriesSi88321
Number of channels2 Channel
polarityUnidirectional
Insulation voltage5 kVrms
Isolation typeCapacitive Coupling
propagation delay time18 ns
Supply voltage - max.5.5 V
Supply voltage - min.3 V
Working power current8 mA
Minimum operating temperature- 40 C
Maximum operating temperature+ 125 C
EncapsulationReel
productDigital Isolators
typeDC/DC Converter
closureShutdown
forward channel1 Channel
maximum fall time2.5 ns
maximum rise time2.5 ns
Pd-power dissipation2.27 W
Pulse Width10 ns
pulse width distortion4.5 ns
reverse channel1 Channel
Factory packaging quantity1250
Si88x2x Data Sheet
Dual Digital Isolators with DC-DC Converter
KEY FEATURES
The Si88xx integrates Silicon Labs' proven digital isolator technology with an on-chip
isolated dc-dc converter that provides regulated output voltages of 3.3 or 5.0 V (or >5 V
with external components) at peak output power levels of up to 5 W. These devices pro-
vide up to two digital channels. The dc-dc converter has user-adjustable frequency for
minimizing emissions, a soft-start function for safety, a shutdown option and loop com-
pensation. The device requires only minimal passive components and a miniature trans-
former.
The ultra-low-power digital isolation channels offer substantial data rate, propagation de-
lay, size and reliability advantages over legacy isolation technologies. Data rates up to
100 Mbps max are supported, and all devices achieve propagation delays of only 23 ns
max. Ordering options include a choice of dc-dc converter features, isolation channel
configurations and a fail-safe mode. All products are certified by UL, CSA, VDE, and
CQC.
• High-speed isolators with integrated dc-dc
converter
• Fully-integrated secondary sensing
feedback-controlled converter with
dithering for low EMI
• dc-dc converter peak efficiency of 83%
with external power switch
• Up to 5 W isolated power with external
power switch
• Options include dc-dc shutdown, frequency
control, and soft start
• Standard Voltage Conversion
• 3/5 V to isolated 3/5 V
• 24 V to isolated 3/5 V
• 3/5 V to isolated 24 V
• 24 V to isolated 24 V
Applications:
Industrial automation systems
Hybrid electric and electric vehicles
Isolated power supplies
Inverters
• Data acquisition
• Motor control
• PLCs, distributed control systems
• Precise timing on digital isolators
• 0 – 100 Mbps
• 18 ns typical prop delay
• Highly-reliable: 100 year lifetime
• High electromagnetic immunity and ultra-
low emissions
• RoHS compliant packages
• SOIC-20 wide body
Safety Approval (Pending):
• UL 1577 recognized
• Up to 5000 Vrms for 1 minute
• CSA component notice 5A approval
• IEC 60950
• VDE certification conformity
• VDE0884-10
• CQC certification approval
• GB4943.1
• SOIC-16 wide body
• Isolation of up to 5000 Vrms
• High transient immunity of 100 kV/µs
(typical)
• AEC-Q100 qualified
• Wide temp range
• –40 to +125 °C
silabs.com
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