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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 DiagramINPUT11:TO-923:SOT-893OUT3:TO-921:SOT-89VREF2GND2:TO-922:SOT-89Rev. 1.0.3
©2002 Fairchild Semiconductor Corporation
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KA75XXX
Absolute Maximum Rating (TA=25°C)
CharacteristicSupply VoltageDetecting VoltageHysteresis VoltageOperating TemperatureStorage TemperaturePower DissipationTO-92SOT-89
Detecting Voltage Temperature Coefficient
SymbolVccVDETVHYSTOPRTSTGPD∆VDET/∆T
Value0.3 ~ +15.02.5/2.7/2.9/3.13.3/3.6/3.9/4.2/4.5
50-25 ~ +85-50 ~ +150
200500
RL = 200Ω, +0.01
UnitVVmV°C°CmW%/°C
Electrical Characteristics (TA=25°C)
Characteristic
Symbol
Test ConditionsRL= 200ΩVOL ≤ 0.4V
Detecting Voltage
VDET
KA75250KA75270KA75290KA75310KA75330KA75360KA75390KA75420KA75450
Min2.352.552.752.953.153.453.754.054.35--30----0.6-108
Typ2.52.72.93.13.33.63.94.24.5--50±0.01300300.810152016
Max2.652.853.053.253.453.754.054.354.650.40.1100-500501.0-203030
Unit
V
Low Output VoltageOutput Leakage CurrentHysteresis Voltage
Detecting Voltage TemperatureCoefficient
Circuit Current(At On Time)Circuit Current(At Off Time)Threshold Operating Voltage\" L\"± Transmission Delay Time\" H\"± Transmission Delay TimeOutput Current (At On Time)Output Current (At On Time)
VOLILKGVHYS∆VDET/∆TICCLICCHVTH(OPR)TOLTOHIOLIIOLII
RL = 200ΩVCC = 15VRL = 200ΩRL = 200Ω
VCC = VDET(MIN) -0.05VVCC = 5.25V
RL = 200Ω, VOL ≤ 0.4VRL = 1.0kΩ, CL= 100pFRL = 1.0kΩ, CL = 100pFVCC = VDET(MIN) -0.05V, TA = 25°C
VCC = VDET(MIN) - 0.05VTA = -25 ~ +85°C
VuAmV%/°CuAuAVususmAmA
2
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KA75XXX
Test Circuit 1.
A1INPUTOUTPUTV1M10u10V+A2KA75XXXGNDTest Circuit 2.
INPUTRL+KA75XXXINPUT PULSE0.1u50VGNDOUTPUT10u50V5VTest Circuit 3.
INPUTRLLEDVCCKA75XXXOUTPUTGND3
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KA75XXX
Application Circuit
INPUTRLVCCKA75XXXOUTPUTGNDRESETVccCPUGND4
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KA75XXX
Mechanical Dimensions
Package
Dimensions in millimeters
TO-92
4.58–0.15+0.250.46 ±0.1014.47 ±0.404.58 ±0.201.27TYP[1.27 ±0.20]3.60 ±0.201.27TYP[1.27 ±0.20]0.38–0.05+0.103.86MAX1.02 ±0.100.38–0.05+0.10(R2.29)(0.25)5
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KA75XXX
Mechanical Dimensions (Continued)
Package
Dimensions in millimeters
SOT-89
4.50 ±0.201.65 ±0.10C0.2(0.50)1.50 ±0.20(0.40)2.50 ±0.200.50 ±0.101.50 TYP1.50 TYP0.40 ±0.100.40(1.10)4.10 ±0.20+0.10–0.056
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KA75XXX
Ordering Information
Product Number
KA75250ZKA75270ZKA75290ZKA75310ZKA75330ZKA75360ZKA75390ZKA75420ZKA75450ZKA75250MKA75270MKA75290MKA75310MKA75330MKA75360MKA75390MKA75420MKA75450M
SOT-89
-25 ~ +85°C
TO-92Package
Operating Temperature
7
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KA75XXX
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.
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.
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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.
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