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BL7121AH on a board, in 3D

BL7121AH

BL

-40℃~+125℃ 1 1 100Mbps 100kV/us 11ns 2.35V~5.5V 2.35V~5.5V 3750 Fail-safe output High Level SOIC-8 Digital Isolators ROHS

Extended
DatasheetJLCPCBLCSCbl/BL7121AH
Category
Digital Isolators
Package
SOIC-8
Pins
8

Overview

The BL7121AH is a digital Isolator made by BL in a SOIC-8 package with 8 pins. -40℃~+125℃ 1 1 100Mbps 100kV/us 11ns 2.35V~5.5V 2.35V~5.5V 3750 Fail-safe output High Level SOIC-8 Digital Isolators ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:ADUM1281BRZ-HXY, from EasyEDA) and its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 11,361 are in stock at JLCPCB (part C7436522).

Symbol

VDD11VOA2VIB3GND14GND25VOB6VIA7VDD28
EasyEDA_Cloud:ADUM1281BRZ-HXYFrom EasyEDA

Footprint

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

Parameters

12
CMTI(kV/us)
100kV/us
Data Rate(Max)
100Mbps
Default Output
High Level
Features
Fail-safe output
Isolation Voltage(Vrms)
3750
Number of Channels
2
Number of Forward Channels
1
Number of Reverse Channels
1
Operating Temperature
-40℃~+125℃
Propagation Delay(tpd)
11ns
Voltage - Supply(VCCA)
2.35V~5.5V
Voltage - Supply(VCCB)
2.35V~5.5V

Order codes

1

Pinout

8
The pins of the BL7121AH
PinNameType
1VDD1Unspecified
2VOAUnspecified
3VIBUnspecified
4GND1Unspecified
5GND2Unspecified
6VOBUnspecified
7VIAUnspecified
8VDD2Unspecified

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A picture
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Questions

Is there a KiCad symbol and footprint for the BL7121AH?

Yes. The symbol is EasyEDA_Cloud:ADUM1281BRZ-HXY 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 BL7121AH?

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

Where is the BL7121AH datasheet?

BL publishes it: the Datasheet link on this page opens it.

Where can I order the BL7121AH?

JLCPCB lists it as part C7436522, with 11,361 in stock; the sellers' links on this page open their listings.

What can replace the BL7121AH?

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.

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8