Questions tagged [supervisor]
The supervisor tag has no usage guidance.
7
questions
5
votes
1
answer
150
views
Is there a simpler way to latch a supervisor?
I’m currently designing a Li-Ion powered ESP32 circuit.
The ESP32 has a minimum operating voltage of 3 V. So, my instinct is to use a 3.1 V supervisor to keep the ESP32 within an acceptable range.
...
- 165
0
votes
2
answers
88
views
What is the supply current in LM339N
I am repairing a voltage protector that contains a LM339N, that working like comparator, in the datasheet say that the current consumption is the 0.8 mA (max 2 mA). I measured with a tester the ...
- 1
0
votes
0
answers
39
views
TPS3619-33 (Backup-Battery Supervisor) overdrawing current at the VBAT path after a few runs
I've been having a few problems in integrating the TPS3619-33 (Backup-Battery Supervisor) into a product that I've been working on for quite a while. After installing a new TPS3619 into the board ...
- 69
0
votes
1
answer
64
views
Monitoring circuit for the switching voltage
I would like to monitor the switching voltage which is switching between 24V and ground at a frequency of 100kHz. If the voltage is below 21V, then generate a reset signal. The lines are the ...
- 1,755
0
votes
2
answers
43
views
SOLVED: TLV809E Push-Pull Supply Voltage Supervisor Reset PIN Voltage
I'm attempting to use the RESET pin of a TLV809EA26DBZR Push-Pull Active Low Voltage Supervisor IC to assert a high signal when my VDD input voltage exceeds the low voltage threshold of the Supervisor ...
- 37
0
votes
0
answers
65
views
Simple through-hole voltage supervisor
I'm trying to power a microcontroller (ESP8266) from a solar cell and a supercapacitor. It might or might not make sense, but it's a hobby project.
The thing is - ESP8266 doesn't boot if the voltage ...
- 281
0
votes
2
answers
101
views
Adding Hysteresis to Supply Voltage Supervisor
I am going through this TI-APP note - Voltage Supervisor,with hysteresis.
I am not able to understand WHY they have derived the below equation 1 & equation 2 in the App note (page 2 & page 3)...
- 2,184