SI8452BB-B-IS1 Silicon Laboratories Inc, SI8452BB-B-IS1 Datasheet - Page 22
SI8452BB-B-IS1
Manufacturer Part Number
SI8452BB-B-IS1
Description
IC ISOLATOR 5CH 5.5V 16-SOIC
Manufacturer
Silicon Laboratories Inc
Series
ISOpror
Specifications of SI8452BB-B-IS1
Number Of Channels
5
Package / Case
16-SOIC (3.9mm Width)
Inputs - Side 1/side 2
3/2
Isolation Rating
2500Vrms
Voltage - Supply
2.7 V ~ 5.5 V
Data Rate
150Mbps
Propagation Delay
6ns
Output Type
Tri-State
Operating Temperature
-40°C ~ 125°C
Mounting Style
SMD/SMT
Propagation Delay Time
6 ns
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Supply Current
6 mA
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Operating Temperature (max)
125C
Operating Temperature (min)
-40C
Pin Count
16
Mounting
Surface Mount
Package Type
SOIC N
Case Length
9.9mm
Case Height
1.5(Max)mm
Screening Level
Automotive
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SI8452BB-B-IS1
Manufacturer:
Silicon Labs
Quantity:
135
Si8450/51/52/55
3. Application Information
3.1. Theory of Operation
The operation of an Si845x channel is analogous to that of an opto coupler, except an RF carrier is modulated
instead of light. This simple architecture provides a robust isolated data path and requires no special
considerations or initialization at start-up. A simplified block diagram for a single Si845x channel is shown in
Figure 12.
A channel consists of an RF Transmitter and RF Receiver separated by a semiconductor-based isolation barrier.
Referring to the Transmitter, input A modulates the carrier provided by an RF oscillator using on/off keying. The
Receiver contains a demodulator that decodes the input state according to its RF energy content and applies the
result to output B via the output driver. This RF on/off keying scheme is superior to pulse code schemes as it
provides best-in-class noise immunity, low power consumption, and better immunity to magnetic fields. See
Figure 13 for more details.
22
A
Transmitter
OSCILLATOR
MODULATOR
Figure 12. Simplified Channel Diagram
RF
Figure 13. Modulation Scheme
Semiconductor-
Based Isolation
Rev. 1.2
Barrier
DEMODULATOR
Modulation Signal
Output Signal
Input Signal
Receiver
B