2002 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.3
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.
Internal Block Diagram
INPUT
1:TO-92
3:SOT-89
GND
2:TO-92
2:SOT-89
OUT
3:TO-92
1:SOT-89
V
REF
INPUT
1:TO-92
3:SOT-89
GND
2:TO-92
2:SOT-89
OUT
3:TO-92
1:SOT-89
V
REF
1
2
3
KA75XXX
Voltage Detector
TO-92
1
1. Input 2. GND 3. Output
SOT-89
1
KA75XXX
2
Absolute Maximum Rating (T
A
=25
C)
Electrical Characteristics (T
A
=25
C)
Characteristic
Symbol
Value
Unit
Supply Voltage
Vcc
0.3 ~ +15.0
V
Detecting Voltage
V
DET
2.5/2.7/2.9/3.1
3.3/3.6/3.9/4.2/4.5
V
Hysteresis Voltage
V
HYS
50
mV
Operating Temperature
T
OPR
-25 ~ +85
C
Storage Temperature
T
STG
-50 ~ +150
C
Power Dissipation
TO-92
SOT-89
P
D
200
500
mW
Detecting Voltage Temperature Coefficient
V
DET
/
T
R
L
= 200
, +0.01
%/
C
Characteristic
Symbol
Test Conditions
Min
Typ
Max
Unit
Detecting Voltage
V
DET
KA75250
KA75270
KA75290
KA75310
KA75330
KA75360
KA75390
KA75420
KA75450
2.35
2.55
2.75
2.95
3.15
3.45
3.75
4.05
4.35
2.5
2.7
2.9
3.1
3.3
3.6
3.9
4.2
4.5
2.65
2.85
3.05
3.25
3.45
3.75
4.05
4.35
4.65
V
Low Output Voltage
V
OL
R
L
= 200
-
-
0.4
V
Output Leakage Current
I
LKG
V
CC
= 15V
-
-
0.1
uA
Hysteresis Voltage
V
HYS
R
L
= 200
30
50
100
mV
Detecting Voltage Temperature
Coefficient
V
DET
/
T
R
L
= 200
-
0.01
-
%/
C
Circuit Current(At On Time)
I
CCL
V
CC
= V
DET(MIN)
-0.05V
-
300
500
uA
Circuit Current(At Off Time)
I
CCH
V
CC
= 5.25V
-
30
50
uA
Threshold Operating Voltage
V
TH(OPR)
R
L
= 200
, V
OL
0.4V
-
0.8
1.0
V
" L" Transmission Delay Time
T
OL
R
L
= 1.0k
, C
L
= 100pF
0.6
10
-
us
" H" Transmission Delay Time
T
OH
R
L
= 1.0k
, C
L
= 100pF
-
15
20
us
Output Current (At On Time)
I
OLI
V
CC
= V
DET(MIN)
-0.05V,
T
A
= 25
C
10
20
30
mA
Output Current (At On Time)
I
OLII
V
CC
= V
DET(MIN)
- 0.05V
T
A
= -25 ~ +85
C
8
16
30
mA
R
L
= 200
V
OL
0.4V
KA75XXX
9/10/02 0.0m 001
Stock#DSxxxxxxxx
2002 Fairchild Semiconductor Corporation
LIFE SUPPORT POLICY
FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, and (c) whose failure to
perform when properly used in accordance with
instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
www.fairchildsemi.com
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER
DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
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