Microprocessor Supervisory Circuits With Low Line Output, Manual Reset And Watchdog Timer

The LM3708 LM3709 series of Microprocessor Supervisory Circuits provide the maximum flexibility for monitoring power supplies and battery controlled functions in systems without backup batteries. The LM3708 LM3709 series are available in a 9-bump micro SMD package.
Built-in features include the following:
Reset: Reset is asserted during power-up, power-down, and brownout conditions. RESET# is guaranteed down to VCC of 1.0V.
Manual Reset Input: An input that asserts reset when pulled low.
Low Line Output: This early power failure warning indicator goes low when the supply voltage drops to a value which is 2% higher than the reset threshold voltage.
Watchdog Timer: The WDI (Watchdog Input) monitors one of the ?P's output lines for activity. If no output transition occurs during the watchdog timeout period, reset is activated.
By National Semiconductor Corporation
LM3709 's PackagesLM3709 's pdf datasheet

LM3709 Pinout, Pinouts
LM3709 pinout,Pin out
This is one package pinout of LM3709,If you need more pinouts please download LM3709's pdf datasheet.

LM3709 Application circuits
LM3709 circuits
This is one application circuit of LM3709,If you need more circuits,please download LM3709's pdf datasheet.

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