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Fairchild |
KA75XXX
VOLTAGE DETECTOR
The KA75250/270/290/310/33/36/39/42/45 prevents error of system
from supply voltage below normal voltage level at the time the power
on and instantaneous power off in systems.
VOLTAGE DETECTOR
TO-92
FEATURES
• Detecting against error operations at the power ON/OFF.
• Resetting function for the low voltage microprocessor.
• Checking low battery
1.Input 2.GND 3.Output
BLOCK DIAGRAM
æ1
VCC
ç
GND 2
VREF
ORDERING INFORMATION
è
3 OUT
Device
KA75250
KA75270
KA75290
KA75310
KA7533
KA7536
KA7539
KA7542
KA7545
PKG
Operating Temp.
TO-92
Î-30~ + 75
©1999 Fairchild Semiconductor Corporation
Rev. B
KA75XXX
ÎABSOLUTE MAXIMUM RATING (TA = 25 )
Characteristic
Supply Voltage
Detecting Voltage
Hysteresis Voltage
Operating Temperature
Storage Temperature
Power Dissipation
Detecting Voltage Temperature Coefficient
Symbol
VCC
VDET
VHYS
TOPR
TSTG
L LPD
VDET/ T
VOLTAGE DETECTOR
Value
0.3 ~ +15.0
2.5/2.7/2.9/3.1
3.3/3.6/3.9/4.2/4.5
50
- 30 ~ + 75
- 50 ~ + 150
200
` äRL = 200 , 0.01
Unit
V
V
mV
Î
Î
Mw
/Î
ÎELECTRICAL CHARACTERISTICS (TA = 25 )
Characteristic
Detecting Voltage
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 I)
Output Current (at on time II)
Symbol
VDET
VOL
ILKG
VHYS
L LVDET/ T
Test
`RL = 200
VOL 0.4V
`RL = 200
`VCC = 15V
RL = 200
`RL = 200
Conditions
KA75250
KA75270
KA75290
KA75310
KA7533
KA7536
KA7539
KA7542
KA7545
ICCL
ICCH
VTH(OPR)
tOL
tOH
IOLI
IOLII
VCC = VDET(MIN) - 0.05V
VCC = 5.25V
` RL = 200 , VOL 0.4V
`RL = 1.0K , CL = 100pF
`RL = 1.0K , CL = 100pF
ÎVCC = VDET(MIN) - 0.05V, TC = 25
ÎVCC = VDET(MIN) - 0.05V,
TC = -30 ~ + 75
Min Typ
2.35
2.5
2.55
2.7
2.75
2.9
2.95
3.1
3.15
3.3
3.45
3.6
3.75
3.9
4.05
4.2
4.35
4.5
ïï
ïï
30 50
ä0.01
ï 300
ï 30
0.6 0.8
ï 10
ï 15
7 17
8 16
Max Unit
2.65 V
2.85
3.05
3.25
3.45
3.75
4.05
4.35
4.65
0.4 V
s0.1 A
100 mV
/Î
s500 A
s50 A
1.0 V
ï sS
s20 S
27 mA
30 mA
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