MDT7822
Voltage Detector
1.General Description
MDT7822 is a voltage detector which
can generate a low level signal whenever the
input voltage (supply voltage) falls below
threshold voltage level (2.2v).
MDT7822
4. Pin Function Description
2. Features
●
●
1
VDET
2
VIN
3
VSS
Low detectable voltage 2.2V
Low power consumption
●
Built-in hysteresis characteristic
Pin Name
VSS
VDET
I/O
Function
Ground
Open
Supply voltage
Drain
detector. Output low if
Vin < 2.2V.
Input
Supply voltage input
3. Applications
●
●
●
Battery detectors
Power checkers
Micro-controller reset
VIN
ORDERING INFORMATION
Device
MDT7822ST
Package
SOT89
1 of 2
2005/10/18
MDT7822
Voltage Detector
5. Electrical Characteristics
Parameter
Low Battery
Detect
Voltage (LBDV)
Test Conditions
HI to LOW
Detectable
Voltage
LOW to HI
Detectable
Voltage
Min.
2.1
2.2
Typ. Max.
2.2
2.3
2.3
0.1
2
9
2.4
0.15
5
7
Unit
V
V
V
uA
V
mA
LBDV hysteresis
0.5
Width
-----------------------
----
Ivin
No load
1.2
---------------------------
Vin
Operating Voltage
VDET Sink Current
VIN=2V
6.Application Circuit
EXTERNAL COMPONENT : RPU=47K
2 of 2
2005/10/18
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