Part Number: TPS3847 Hi expert,
May I check with you what's the maximum and minimum hysteresis of TPS3847? Customer want to monitor 12V adapter, and use TPS3847108. But sometimes they would see Reset pull low at 11.1V and goes back at 11.2V. Not sure…
Part Number: TPS3847 The TPS3847 has an MR pin. Can the VCC be 12V and the MR held at 3.3V? The concern is about the fact that the low VCC is 12V so MR at 3.3V can cause internal buffer to be in linear mode and then sink too much current.
Regards
Do you think this one attached will work? Thanks!
note: 15Vint and -15Vint are the output from the DC to DC converter. GND is in common. -15V and 15V are the main output, that goes to the op amp circuit.
A) just use one TPS3847, push pull to the the…
Hi Ben,
To answer your questions:
A) Will this work as expected? We have not tested this specific configuration but it should work as expected. The key is making sure the input rails are all up prior to enabling the TP7A39. A device like the TPS3847…
Toshihiro,
The "uncontrol area" during power up you mention is called the power on reset voltage (Vpor). The lowest Vpor device we have is TPS3840 with a Vpor of 0.2V for the push-pull output option. The VDD max is 10V so you need to use a resistor…
Hi Oscar,
What is the threshold voltage at which you are looking for a transition to occur? Perhaps TPS3847 is a good option for you?
Very Respectfully,
Ryan
Deepak,
I don't believe there is any Voltage Supervisor that can guarantee the output voltage while powering on without external circuitry. I think TPS3710 is the best device we have to meet your requirements. TPS3847 is another high voltage device…
TPS3847 looks good. But unfortunately I will use those regulators with higher input voltage (aprox. 25VDC). And sometimes I'll adjust output voltage to lower values eg. 5V or 3V3 and when it will be done I want to shut down chip when input voltage falls…
Hi ACGUY,
There isnt at full temperature range Vit- value for TL7712A. May I recommend TPS3847 that has the same threshold voltage of 10.8V and provides a typical character graph of Vit- accuracy vs temperature.
Abhishek
