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ON Semiconductor - NanoPower Supervisory Circuit

Numéro de référence CAT8836
Description NanoPower Supervisory Circuit
Fabricant ON Semiconductor 
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CAT8836 fiche technique
CAT8836
NanoPower Supervisory
Circuit
Description
The CAT8836 is a voltage supervisory circuit intended to provide
circuit initialization and startup timing for DSPs and other
processorbased systems.
When system power comes on, CAT8836’s output once the supply
voltage VDD becomes higher than 1.1 V. Thereafter, the supervisory
circuit monitors VDD and keeps the output active as long as VDD
remains below the threshold voltage of VTH. After VDD exceeds the
monitoring threshold an internal timer delays the return of the output
to the inactive state (high) to ensure proper system reset.
The duration of this reset delay is controlled by the CT input. When
CT is connected to GND the reset delay is 10 ms, typical, in duration
and when connected to VDD, the delay time is typically 200 ms.
Whenever the supply voltage drops below the monitoring threshold
voltage VTH, the output becomes active (low) again.
Features
Supply Current: 220 nA (typical)
Precision Supply Voltage Supervision Range: 1.8 V, 2.5 V, 3.0 V, and
3.3 V
PowerOn Reset Generator with Selectable Delay Time: 10 ms or
200 ms
Push/Pull RESET (active low) Output
Manual Reset Input
PinforPin Replacement for TPS3836
TSOT235 Package
Temperature Range: 40°C to +85°C
These Devices are PbFree, Halogen Free/BFR Free and are RoHS
Compliant
Typical Applications
Applications Using LowPower DSPs, Microcontrollers, or
Microprocessors
Portableand BatteryPowered Equipment
Intelligent Instruments
Wireless Communication Systems
Automotive Systems
Notebook Computers
http://onsemi.com
TSOT23
TD SUFFIX
CASE 419AE
PIN CONNECTIONS
1
CT VDD
GND
MR RESET
(Top View)
MARKING DIAGRAM
UTYM
UT = Device Code
Y = Production Year (Last Digit)
M = Production Month: 19 (Jan Sep),
= O, N, D (Oct Dec)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
© Semiconductor Components Industries, LLC, 2011
January, 2011 Rev. 0
1
Publication Order Number:
CAT8836/D

PagesPages 7
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