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KA75XXX
Voltage Detector
Features
• Detecting Against Error Operations At The Power On/off.
• Resetting Function For The Low Voltage Microprocessor.
• Checking Low Battery
Description
The KA75250/KA75270/KA75290/KA75310/KA75330/
KA75360/KA75390/KA75420/KA75450 prevents the error
of system from supply voltage below normal voltage level at
the time the power on and instantaneous power off in
systems.
TO-92
1
SOT-89
1
1. Input 2. GND 3. Output
Internal Block Diagram
INPUT
1
1:TO-92
3:SOT-89
3
OUT
3:TO-92
1:SOT-89
V
REF
2
GND
2:TO-92
2:SOT-89
Rev. 1.0.3
©2002 Fairchild Semiconductor Corporation
KA75XXX
Absolute Maximum Rating (T
A
=25°C)
°
Characteristic
Supply Voltage
Detecting Voltage
Hysteresis Voltage
Operating Temperature
Storage Temperature
Power Dissipation
TO-92
SOT-89
Detecting Voltage Temperature Coefficient
Symbol
Vcc
V
DET
V
HYS
T
OPR
T
STG
P
D
∆V
DET
/∆T
Value
0.3 ~ +15.0
2.5/2.7/2.9/3.1
3.3/3.6/3.9/4.2/4.5
50
-25 ~ +85
-50 ~ +150
200
500
R
L
= 200Ω, +0.01
Unit
V
V
mV
°C
°C
mW
%/°C
Electrical Characteristics (T
A
=25°C)
°
Characteristic
Symbol
Test Conditions
R
L
= 200Ω
V
OL
≤
0.4V
Detecting Voltage
V
DET
KA75250
KA75270
KA75290
KA75310
KA75330
KA75360
KA75390
KA75420
KA75450
Min
2.35
2.55
2.75
2.95
3.15
3.45
3.75
4.05
4.35
-
-
30
-
-
-
-
0.6
-
10
8
Typ
2.5
2.7
2.9
3.1
3.3
3.6
3.9
4.2
4.5
-
-
50
±0.01
300
30
0.8
10
15
20
16
Max
2.65
2.85
3.05
3.25
3.45
3.75
4.05
4.35
4.65
0.4
0.1
100
-
500
50
1.0
-
20
30
30
Unit
V
Low Output Voltage
Output Leakage Current
Hysteresis Voltage
Detecting Voltage Temperature
Coefficient
Circuit Current(At On Time)
Circuit Current(At Off Time)
Threshold Operating Voltage
" L"± Transmission Delay Time
" H"± Transmission Delay Time
Output Current (At On Time)
Output Current (At On Time)
V
OL
I
LKG
V
HYS
∆V
DET
/∆T
I
CCL
I
CCH
V
TH(OPR)
T
OL
T
OH
I
OLI
I
OLII
R
L
= 200Ω
V
CC
= 15V
R
L
= 200Ω
R
L
= 200Ω
V
CC
= V
DET(MIN)
-0.05V
V
CC
= 5.25V
R
L
= 200Ω, V
OL
≤
0.4V
R
L
= 1.0kΩ, C
L
= 100pF
R
L
= 1.0kΩ, C
L
= 100pF
V
CC
= V
DET(MIN)
-0.05V,
T
A
= 25°C
V
CC
= V
DET(MIN)
- 0.05V
T
A
= -25 ~ +85°C
V
uA
mV
%/°C
uA
uA
V
us
us
mA
mA
2
MCU
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