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PDF SI8642 Data sheet ( Hoja de datos )
| Número de pieza | SI8642 | |
| Descripción | Low-Power Quad-Channel Digital Isolators | |
| Fabricantes | Silicon Laboratories | |
| Logotipo |  |
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Si864x Data Sheet
Low-Power Quad-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 advantag-
es over legacy isolation technologies. The operating parameters of these products re-
main 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 propagation delays of
less than 10 ns. Enable inputs provide a single point control for enabling and disabling
output drive. Ordering options include a choice of isolation ratings (1.0, 2.5, 3.75 and 5
kV) and a selectable fail-safe operating mode to control the default output state during
power loss. All products >1 kV are safety certified by UL, CSA, VDE, and CQC, 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
• Communications 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
• Si864xxT options certified to reinforced VDE 0884-10
• All other options certified to IEC 60747-5-5 and reinforced 60950-1
• CQC certification approval
• GB4943.1
KEY FEATURES
• High-speed operation
• DC to 150 Mbps
• No start-up initialization required
• Wide Operating Supply Voltage
• 2.5–5.5 V
• Up to 5000 VRMS isolation
• Reinforced VDE 0884-10, 10 kV surge-
capable (Si864xxT)
• 60-year life at rated working voltage
• High electromagnetic immunity
• Ultra low power (typical)
5 V Operation
• 1.6 mA per channel at 1 Mbps
• 5.5 mA per channel at 100 Mbps
2.5 V Operation
• 1.5 mA per channel at 1 Mbps
• 3.5 mA per channel at 100 Mbps
• Tri-state outputs with ENABLE
• Schmitt trigger inputs
• Selectable fail-safe mode
• Default high or low output (ordering
option)
• Precise timing (typical)
• 10 ns propagation delay
• 1.5 ns pulse width distortion
• 0.5 ns channel-channel skew
• 2 ns propagation delay skew
• 5 ns minimum pulse width
• Transient Immunity 50 kV/µs
• AEC-Q100 qualification
• Wide temperature range
• –40 to 125 °C
• RoHS-compliant packages
• SOIC-16 wide body
• SOIC-16 narrow body
• QSOP-16
silabs.com | Smart. Connected. Energy-friendly.
Rev. 1.9
1 page  
Si864x Data Sheet
System Overview
2.2 Eye Diagram
The figure below illustrates an eye diagram taken on an Si8640. 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 Si8640 were captured on an oscilloscope. The re-
sults illustrate that data integrity was maintained even at the high data rate of 150 Mbps. The results also show that 2 ns pulse width
distortion and 350 ps peak jitter were exhibited.
Figure 2.3. Eye Diagram
silabs.com | Smart. Connected. Energy-friendly.
Rev. 1.9 | 4
5 Page 
Parameter
Symbol
Test Condition
Min
Si8641Bx, Ex
VDD1
VDD2
VDD1
VDD2
VI = 0(Bx), 1(Ex)
VI = 0(Bx), 1(Ex)
VI = 1(Bx), 0(Ex)
VI = 1(Bx), 0(Ex)
—
—
—
—
Si8642Bx, Ex
VDD1
VDD2
VDD1
VI = 0(Bx), 1(Ex)
VI = 0(Bx), 1(Ex)
VI = 1(Bx), 0(Ex)
—
—
—
VDD2
VI = 1(Bx), 0(Ex)
1 Mbps Supply Current (All Inputs = 500 kHz Square Wave, CI = 15 pF on All Outputs)
—
Si8640Bx, Ex, Si8645Bx
VDD1
—
VDD2
—
Si8641Bx, Ex
VDD1
—
VDD2
Si8642Bx, Ex
—
VDD1
VDD2
—
—
10 Mbps Supply Current (All Inputs = 5 MHz Square Wave, CI = 15 pF on All Outputs)
Si8640Bx, Ex, Si8645Bx
VDD1
—
VDD2
Si8641Bx, Ex
—
VDD1
VDD2
—
—
Si8642Bx, Ex
VDD1
—
VDD2
—
100 Mbps Supply Current (All Inputs = 50 MHz Square Wave, CI = 15 pF on All Outputs)
Si8640Bx, Ex, Si8645Bx
VDD1
VDD2
—
—
Si864x Data Sheet
Electrical Specifications
Typ Max Unit
1.4 2.2
2.3 3.7 mA
5.2 7.8
3.6 5.4
1.8 2.9
1.8 2.9 mA
4.4 6.6
4.4 6.6
3.6 5.0 mA
2.9 4.0
3.4 4.8 mA
3.3 4.6
3.3 4.6 mA
3.3 4.6
3.6 5.0 mA
4.0 5.6
3.7 5.2 mA
4.1 5.8
3.9 5.4 mA
3.9 5.4
3.6 5.0
17.5 22.8
mA
silabs.com | Smart. Connected. Energy-friendly.
Rev. 1.9 | 10
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet SI8642.PDF ] | |
Hoja de datos destacado
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| SI8641 | Low-Power Quad-Channel Digital Isolators | Silicon Laboratories |
| SI8642 | Low-Power Quad-Channel Digital Isolators | Silicon Laboratories |
| SI8645 | Low-Power Quad-Channel Digital Isolators | Silicon Laboratories |
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