I am designing a small board where I require several power supplies to be monitored. They are 1.8VDC, 3.3VDC, 5VDC, 9VDC, 12VDC and 24VDC. I don't mind if I need two separate IC's to accommodate the supervision of all the voltages.
In this board, if all the voltages are available, an output will provide a high signal which is used to turn on a led. If any of these voltages are missing, the output will provide a low, hence turning off the led. At the same time, the output should be able to flash by a logic 1 signal coming from an MCU. The flashing output sequence should only be allowed to be done when all voltages are available.
Can someone suggest a supervisory voltages IC with the following specs:
- Monitoring capabilities for the 3 voltages listed above
- The output should be able to drive a 30-40 ma load, (ex: 3 LEDS)
- The IC should provide an input to turn on and off the output when all voltages are available
- Must be available in PDIO and TQFP or other surface mount package
- Must operate with a 5 VDC power supply
I looked a TPS3510P, and it seems pretty close t what I need except that it only does three of the six voltages that is required.