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1. Describe
Skyworks' family of ultra-low power digital isolators are CMOS devices that offer significant data rate, propagation delay, power, size, reliability and external BOM advantages over traditional isolation technologies. The operating parameters of these products are stable over a wide temperature range and throughout the life of the device, resulting in ease of design and highly uniform performance. All device versions feature Schmitt Trigger inputs for high noise immunity and require only VDD bypass capacitors. Data rates up to 150 Mbps are supported with propagation delays of less than 10 ns on all devices. The enable input provides a single point of control for enabling and disabling the output drive. Ordering options include a choice of isolation ratings (1.0, 2.5, 3.75 and 5 kV) and a selectable failsafe operating mode to control the default output state during power outages. All >1 kVRMS products are UL, CSA, VDE and CQC safety certified, and products in wide body packages support reinforced insulation and withstand voltages up to 5 kVRMS. Automotive grade is available for some part numbers. These products are manufactured using automotive-specific processes at all steps of the manufacturing process to ensure the robustness and low defect rates required for automotive applications.
2. Feature
1. high speed operation
- DC to 150 Mbps
2. No need to start initialization
3. Wide operating supply voltage
- 2.5–5.5 volts
4. Isolation up to 5000 VRMS
5. 60 years at rated operating voltage
6. High electromagnetic immunity
- Ultra low power consumption (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
7. Tri-state output with enable
8. Schmitt trigger input
9. Selectable failsafe mode
- Default high or low output (order option)
10. Accurate timing (typical)
- 10 ns propagation delay
- 1.5 ns pulse width distortion
- 0.5 ns channel-to-channel skew
- 2 ns propagation delay skew
- 5 ns minimum pulse width
11. Transient immunity 50 kV/µs
12. AEC-Q100 certified
13. Wide temperature range
- –40 to 125 °C
14. RoHS Compliant Package
- SOIC-16 wide body
- SOIC-16 narrow body
- QSOP-16
15. Provides automotive grade OPN
- AIAG compliant PPAP file support
- IMDS and CAMDS list support
3. Application
1. Industrial automation systems
2. Medical Electronics
3. Isolated switch mode power supply
4. Isolated ADC, DAC
5. motor control
6. Power inverter
7. Communication system
8. Car charger
9. Battery management system
10. charging station
11. Traction inverter
12. Hybrid Electric Vehicles
13. Battery Electric Vehicles
4. Pin configuration
5. Pin Description
6. Function Description
The Si865x channels work like optocouplers, except that the RF carrier is modulated instead of light. This simple architecture provides a strong isolated data path and requires no special consideration or initialization at startup. A channel consists of an RF transmitter and an RF receiver, separated by a semiconductor-based isolation barrier. Input A uses on/off keying to modulate the carrier provided by the RF oscillator. The receiver contains a demodulator that decodes the input state according to its RF energy content and applies the result to output B through the output driver. This RF on/off keying scheme is superior to a pulse coding scheme because it offers best-in-class noise immunity, low power consumption, and better immunity to magnetic fields.
