Voltage Detector - Fairchild
Description
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fairchildsemi.
com
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
VREF
2 GND 2:TO-92 2:SOT-89
Rev.
1.
0.
3
©2002 Fairchild Semiconductor Corporation
KA75XXX
Absolute Maximum Rating (TA=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 VDET 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 RL= 200Ω VOL ≤ 0.
4V Detecting Voltage VDET 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)
VOL ILKG VHYS ∆VDET/∆T ICCL ICCH VTH(OPR) TOL TOH IOLI IOLII
RL = 200Ω VCC = 15V RL = 200Ω RL = 200Ω VCC = VDET(MIN) -0.
05V VCC = 5.
25V RL = 200Ω, VOL ≤ 0.
4V RL = 1.
0kΩ, CL= 100pF RL = 1.
0kΩ, CL = 100pF VCC = VDET(MIN) -0.
05V, TA = 25°C VCC = VDET(M...
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