Voltage Detector - Fairchild
Description
KA75XXX
Voltage Detector
www.
fairchildsemi.
com
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
VREF
GND 2 2:TO-92 2:SOT-89
©2002 Fairchild Semiconductor Corporation
3 OUT 3:TO-92 1:SOT-89
Rev.
1.
0.
3
KA75XXX
Absolute Maximum Rating (TA=25°C)
Characteristic Supply Voltage
Symbol Vcc
Detecting Voltage
VDET
Hysteresis Voltage
Operating Temperature Storage Temperature
Power Dissipation TO-92 SOT-89
Detecting Voltage Temperature Coefficient
VHYS TOPR TSTG
PD
∆VDET/∆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 RL = 200Ω, +0.
01
Unit V V mV °C °C
mW
%/°C
Electrical Characteristics (TA=25°C)
Characteristic
Symbol
Test Conditions
Min Typ Max Unit
Detecting Voltage
VDET
RL= 200Ω KA75250 2.
35 VOL ≤ 0.
4V KA75270 2.
55
KA75290 2.
75 KA75310 2.
95 KA75330 3.
15 KA75360 3.
45 KA75390 3.
75 KA75420 4.
05 KA75450 4.
35
2.
5 2.
65 2.
7 2.
85 2.
9 3.
05 3.
1 3.
25 3.
3 3.
45 V 3.
6 3.
75 3.
9 4.
05 4.
2 4.
35 4.
5 4.
65
Low Output Voltage
VOL
RL = 200Ω
-
-
0.
4
V
Output Leakage Current
ILKG
VCC = 15V
-
-
0.
1 uA
Hysteresis Voltage
VHYS
RL = 200Ω
30
50
100 mV
Detecting Voltage Temperature Coefficient
∆VDET/∆T RL = 200Ω
-
±0.
01
- %/°C
Circuit Current(At On Time)
ICCL
VCC = VDET(MIN) -0.
05V
-
300 500 uA
Circuit Current(At Off Time)
ICCH
VCC = 5.
25V
-
30
50 uA
Threshold Operating Voltage
VTH(OPR) RL = 200Ω, VOL ≤ 0.
4V
-
0.
8
1.
0
V
" L"± Transmission Delay Time
TOL
RL = 1.
0kΩ, CL= 100pF
0.
6
10
-
us
" H"± Transmission Delay Time
TOH
RL = 1.
0kΩ, CL = 100pF
-
15
20 us
Output Current (At O...
Similar Datasheet
