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Silicon Laboratories

SI8420 Datasheet Preview

SI8420 Datasheet

Single and Dual-Channel Digital Isolators

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Si8410/20/21 (5 kV) Si8422/23 (2.5 & 5 kV)
Data Sheet
Low-Power, Single and Dual-Channel Digital Isolators
Silicon Lab's family of ultra-low-power digital isolators are CMOS devices offering sub-
stantial data rate, propagation delay, power, size, reliability, and external BOM advan-
tages when compared to legacy isolation technologies. The operating parameters of
these products remain stable across wide temperature ranges and throughout device
service life for ease of design and highly uniform performance. All device versions have
Schmitt trigger inputs for high noise immunity and only require VDD bypass capacitors.
Data rates up to 150 Mbps are supported, and all devices achieve worst-case propaga-
tion delays of less than 10 ns. Ordering options include a choice of isolation ratings (up
to 5 kV) and a selectable fail-safe operating mode to control the default output state dur-
ing power loss. All products are safety certified by UL, CSA, and VDE, and products in
wide-body packages support reinforced insulation withstanding up to 5 kVRMS.
Applications
• Industrial automation systems
• Medical electronics
• Hybrid electric vehicles
• Isolated switch mode supplies
• Isolated ADC, DAC
• Motor control
• Power inverters
• Communication systems
Safety Regulatory Approvals
• UL 1577 recognized
• Up to 5000 VRMS for 1 minute
• CSA component notice 5A approval
• IEC 60950-1, 61010-1, 60601-1
(reinforced insulation)
• VDE certification conformity
• IEC 60747-5-5 (VDE0884 Part 5)
• EN60950-1 (reinforced insulation)
KEY FEATURES
• High-speed operation
• DC to 150 Mbps
• No start-up initialization required
• Wide Operating Supply Voltage:
• 2.6 – 5.5 V
• Up to 5000 VRMS isolation
• High electromagnetic immunity
• Ultra low power (typical)
• 5 V Operation:
• < 2.6 mA/channel at 1 Mbps
• < 6.8 mA/channel at 100 Mbps
• 2.70 V Operation:
• < 2.3 mA/channel at 1 Mbps
• < 4.6 mA/channel at 100 Mbps
• Schmitt trigger inputs
• Selectable fail-safe mode
• Default high or low output
• Precise timing (typical)
• 11 ns propagation delay max
• 1.5 ns pulse width distortion
• 0.5 ns channel-channel skew
• 2 ns propagation delay skew
• 5 ns minimum pulse width
• Transient immunity 45 kV/µs
• AEC-Q100 qualification
• Wide temperature range
• –40 to 125 °C at 150 Mbps
• RoHS compliant packages
• SOIC-16 wide body
• SOIC-8 narrow body
silabs.com | Smart. Connected. Energy-friendly.
Rev. 1.4




Silicon Laboratories

SI8420 Datasheet Preview

SI8420 Datasheet

Single and Dual-Channel Digital Isolators

No Preview Available !

1. Features List
• High-speed operation
• DC to 150 Mbps
• No start-up initialization required
• Wide Operating Supply Voltage:
• 2.6 – 5.5 V
• Up to 5000 VRMS isolation
• High electromagnetic immunity
• Ultra low power (typical)
• 5 V Operation:
• < 2.6 mA/channel at 1 Mbps
• < 6.8 mA/channel at 100 Mbps
• 2.70 V Operation:
• < 2.3 mA/channel at 1 Mbps
• < 4.6 mA/channel at 100 Mbps
Si8410/20/21 (5 kV) Si8422/23 (2.5 & 5 kV) Data Sheet
Features List
• Schmitt trigger inputs
• Selectable fail-safe mode
• Default high or low output
• Precise timing (typical)
• 11 ns propagation delay max
• 1.5 ns pulse width distortion
• 0.5 ns channel-channel skew
• 2 ns propagation delay skew
• 5 ns minimum pulse width
• Transient immunity 45 kV/µs
• AEC-Q100 qualification
• Wide temperature range
• –40 to 125 °C at 150 Mbps
• RoHS compliant packages
• SOIC-16 wide body
• SOIC-8 narrow body
silabs.com | Smart. Connected. Energy-friendly.
Rev. 1.4 | 1


Part Number SI8420
Description Single and Dual-Channel Digital Isolators
Maker Silicon Laboratories
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SI8420 Datasheet PDF






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