The Great Search - Power-on-reset in sot23-3 , a replacement for APX803-26SAG
https://www.digikey.com/short/cp05vd44
Many devices and sensors like it if you give them a fancy reset pulse after power has come up, particularly displays and OLEDs! But sometime for wiring simplicity we would like to skip using a microcontroller pin, and have the breakout board autoreset on power loss. In such cases we use a 'power on reset' chip such as the APX803-26SAG https://www.digikey.com/en/products/detail/diodes-incorporated/APX803-26SAG-7/2285963 . It's worked great but....it's now discontinued! Lets find a drop-in replacement. We will need a SOT-23-3 with pin 1 ground, pin 2 open-drain reset and pin 3 VCC. The reset pulse should be about 100ms, VCC should be able to be 3 to 5V, and the reset level about 2.7V, and hold down the reset line for at least 10ms. The challenge is there's a lot of options, but they're not all function/pin compatible!
Visit the Adafruit shop online - http://www.adafruit.com
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#adafruit #thegreatsearch #digikey @Digi-Key
Many devices and sensors like it if you give them a fancy reset pulse after power has come up, particularly displays and OLEDs! But sometime for wiring simplicity we would like to skip using a microcontroller pin, and have the breakout board autoreset on power loss. In such cases we use a 'power on reset' chip such as the APX803-26SAG https://www.digikey.com/en/products/detail/diodes-incorporated/APX803-26SAG-7/2285963 . It's worked great but....it's now discontinued! Lets find a drop-in replacement. We will need a SOT-23-3 with pin 1 ground, pin 2 open-drain reset and pin 3 VCC. The reset pulse should be about 100ms, VCC should be able to be 3 to 5V, and the reset level about 2.7V, and hold down the reset line for at least 10ms. The challenge is there's a lot of options, but they're not all function/pin compatible!
Visit the Adafruit shop online - http://www.adafruit.com
-----------------------------------------
LIVE CHAT IS HERE! http://adafru.it/discord
Adafruit on Instagram: https://www.instagram.com/adafruit
Subscribe to Adafruit on YouTube: http://adafru.it/subscribe
New tutorials on the Adafruit Learning System: http://learn.adafruit.com/
-----------------------------------------
#adafruit #thegreatsearch #digikey @Digi-Key
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