Part Number
UM813
Status
ACTIVE
Watchdog
Yes
Output driver type/Reset outpt
Push-pull, Active-high
Manual Reset Input
Yes
PFI Option
Yes
Typical Threshold Voltage (V)
2.32, 2.63, 2.93, 3.08, 4.38, 4.63
VCC Range (V)
1 to 5.5
Iq(typ) (mA)
0.08
Time delay (ms)
200
Features
Manual Reset Input, Watchdog, PFI option
Operating Temperature Range (℃)
-40 to 85
Package
SOP8
The UM813 is cost effective system power supply supervisory circuit designed to monitor the power supplies in digital systems.
The UM813 provides power-supply monitoring circuitry that generates a reset output during power-up, power-down, and brownout conditions. The reset output remains operational with VCC as low as 1V. Independent watchdog monitoring circuitry is also provided. This is activated if the watchdog input has not been toggled within 1.6 seconds. In addition, there is a 1.25V threshold detector for power-fail warning, low battery detection, or to monitor an additional power supply. An active low debounced manual reset input is also included.
The UM813xS is the same as the UM706xS, except RESET is provided instead of /RESET.
The UM813xS series are available in a small outline SOP8 package.
- Wide Operation Voltage Range of 1V to 5.5V
- Correct Logic Output Guaranteed to VCC=1.0V
- Precision Supply-Voltage Monitor: 2.32V, 2.63V, 2.93V, 3.08V, 4.38V, 4.63V
- 200ms Reset Pulse Width
- Independent Watchdog Timer-1.6s Timeout
- Active-High Reset Output
- Voltage Monitor for Power-Fail or Low-Battery Warning
- Temperature Range: -40°C to +85°C
- Supply Current of 80μA (Typ)
- Applications Using DSPs, Microcontrollers or Microprocessors
- Programmable Controls
- Computers
- Embedded Systems
- Industrial Equipments
- Intelligent Instruments
- Wireless Communications Systems
Part Number | Packaging Type | Marking Code | Shipping Qty |
---|---|---|---|
UM813xS | SOP8 | UM813xS | 3000pcs/13Inch Tape & Reel |