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ISO7421D

Texas Instruments

-40℃~+125℃ 1 1 1Mbps 2500 50kV/us 9ns Fail-safe output、Multi-voltage domain interface High Level SOIC-8 Digital Isolators ROHS

Extended
DatasheetJLCPCBLCSCti/ISO7421D
Category
Digital Isolators
Package
SOIC-8
Pins
8

Overview

The ISO7421D is a digital Isolator made by Texas Instruments in a SOIC-8 package with 8 pins. -40℃~+125℃ 1 1 1Mbps 2500 50kV/us 9ns Fail-safe output、Multi-voltage domain interface High Level SOIC-8 Digital Isolators ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:XLISO7221CDR, from EasyEDA) and its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 296 are in stock at JLCPCB (part C515253). 3 open-source boards in 2 repositories on GitHub use it.

Symbol

VCC11OUTA2INB3GND14GND25OUTB6INA7VCC28
EasyEDA_Cloud:XLISO7221CDRFrom EasyEDA

Footprint

12345678
Package_SO:SOIC-8_3.9x4.9mm_P1.27mmFrom KiCad's library

Parameters

10
CMTI(kV/us)
50kV/us
Data Rate(Max)
1Mbps
Default Output
High Level
Features
Fail-safe output
Isolation Voltage(Vrms)
2500
Number of Channels
2
Number of Forward Channels
1
Number of Reverse Channels
1
Operating Temperature
-40℃~+125℃
Propagation Delay(tpd)
9ns

Order codes

2

Pinout

8
The pins of the ISO7421D
PinNameType
1VCC1Unspecified
2OUTAUnspecified
3INBUnspecified
4GND1Unspecified
5GND2Unspecified
6OUTBUnspecified
7INAUnspecified
8VCC2Unspecified

Open-source boards using it

All 3
  • 4 layers102.8 × 86.9 mmEnergy monitor, the printed circuit board in 3D

    Energy monitor

    jeffkub/esp32-energy-monitor

    145 parts6MIT
  • 2 layers40.1 × 38.1 mmMonitoring Board v01, the printed circuit board in 3D

    Monitoring Board v01

    WillemViljoen22877169/E448

    A modular battery management system for LFP batteries.

    37 parts
  • 2 layers170.9 × 119.6 mmMstr Controller Board v01, the printed circuit board in 3D

    Mstr Controller Board v01

    WillemViljoen22877169/E448

    A modular battery management system for LFP batteries.

    32 parts

Show this part on your page

A live frame, for any web page
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A picture
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A picture that opens the part, for a README
[![ISO7421D](https://pcbkit.io/embed/parts/ti/ISO7421D.jpg?size=s)](https://pcbkit.io/parts/ti/ISO7421D)

Questions

Is there a KiCad symbol and footprint for the ISO7421D?

Yes. The symbol is EasyEDA_Cloud:XLISO7221CDR and the footprint Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the ISO7421D?

SOIC-8, with 8 pins. Its footprint is drawn on this page.

Where is the ISO7421D datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the ISO7421D?

JLCPCB lists it as part C515253, with 296 in stock; the sellers' links on this page open their listings.

What can replace the ISO7421D?

Parts like it in the library: the ADUM1201ARZ-RL7 by Analog Devices, the CA-IS3720HS by Chipanalog, the CA-IS3721HS by Chipanalog and the ISO7721D by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the ISO7421D?

3 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8