ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：LINEAR IC
- Series：-
- Package：Tube
- Mfr：Econ Connect
- PLL：-
- Input：-
- Output：-
- Number of Circuits：-
- Ratio - Input:Output：-
- Differential - Input:Output：-
- Frequency - Max：-
- Divider/Multiplier：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Type：-
- Grade：-
- Qualification：-
Download product information
Overview
The SI88421ED-AS is a dual-channel digital isolator from Skyworks Solutions, manufactured by Econ Connect. It integrates an isolated DC-DC converter capable of delivering up to 5 W peak output power with external components. The device supports data rates up to 100 Mbps and features a typical propagation delay of 18 ns. It operates within a supply voltage range of 3 V to 5.5 V and provides isolation ratings of up to 5000 Vrms. The component is housed in a 16-pin SOIC package and functions across a temperature range of -40°C to +125°C.
Feature Summary
- Integrates high-speed digital isolation channels with an on-chip isolated DC-DC converter for complete signal and power isolation.
- Features fully-integrated secondary sensing feedback controlled converter with dithering technology to minimize electromagnetic interference emissions.
- Provides high transient immunity and robust noise rejection through capacitive coupling architecture without requiring initialization at startup.
Applications
- Industrial automation systems
- Hybrid electric and electric vehicles
- Isolated power supplies
- Motor control circuits
Procurement Notes
Verify the manufacturer designation as Econ Connect against official Skyworks documentation. Confirm the specific ordering suffix 'ED-AS' corresponds to the intended pinout and packaging configuration. Ensure compliance with automotive-grade requirements if applicable to the target application environment.
Selection Notes
Select this component when both bidirectional signal isolation and isolated power generation are required in a single package. Consider the integrated DC-DC converter capabilities for applications needing regulated secondary voltages. Evaluate the 16-pin SOIC footprint constraints against available PCB space.
Part Context
This part belongs to the Si88x2x family of dual digital isolators with integrated DC-DC converters. It shares architectural similarities with other members like the SI88422ED-IS but differs in specific feature sets such as shutdown options or frequency control availability.
Replacement Considerations
Public confirmed substitute part numbers include SI88421EC-IS and ISO7421EQDWRQ1.
FAQ
Does the SI88421ED-AS include a shutdown function for the DC-DC converter?
No, the datasheet specifies that the shutdown feature is not available on the Si884xx series devices.
What is the maximum supported data rate for the digital isolation channels?
The device supports data rates up to 100 Mbps.
How is the isolated output voltage regulated?
The output voltage is sensed on the secondary side via a resistor divider connected to the VSNS pin, providing closed-loop feedback to the primary controller.
