kia7019 datasheet

VOLTAGE DETECTOR

Function of this IC is accurately resetting the system after

detecting voltage at the time of switching power on and instantaneous power off in various CPU systems and other logic systems.

FEATURES

Current Consumption is Low. I CCL =300A Typ. I CCH =30

A Typ.Resetting Output Minimum Guarantee Voltage is Low 0.8V Typ.Hysteresis Voltage is Provided. 50mV Typ.Reset Signal Generation Starting Voltages :

KIA7019BP/BF/BS 1.9V Typ. KIA7033BP/BF/BS 3.3V Typ.KIA7021BP/BF/BS 2.1V Typ. KIA7034BP/BF/BS 3.4V Typ. KIA7023BP/BF/BS 2.3V Typ. KIA7035BP/BF/BS 3.5V Typ. KIA7025BP/BF/BS 2.5V Typ. KIA7036BP/BF/BS 3.6V Typ.KIA7027BP/BF/BS 2.7V Typ. KIA7039BP/BF/BS 3.9V Typ.KIA7029BP/BF/BS 2.9V Typ. KIA7042BP/BF/BS 4.2V Typ.KIA7031BP/BF/BS 3.1V Typ. KIA7045BP/BF/BS 4.5V Typ.KIA7032BP/BF/BS 3.2V Typ. Taping Type is also Available.

APPLICATIONS

(1) As Control Circuit of Battery-Backed Memory.

(2) As Measure Against Erroneous Operations at Power ON-OFF.(3) As Measure Against System Runaway at Instantaneous Break of Power Supply etc.

(4) As Resetting Function for the CPU-Mounted Equipment, such as Personal Computers, Printers, VTRs and so forth.

V CC OUT

GND

EQUIVALENT CIRCUIT

ELECTRICAL CHARACTERISTICS

MAXIMUM RATINGS (Ta=25

)

-0.3+15.0

KIA7019BP 45BP 400KIA7019BF 45BF KIA7019BS 45BS

-30+75-55+150

=200OL

0.4V

=200=15V A Vs =200mV Vs/T

=200

0.01%/IccL =Vsmin.-0.05V 300A IccH =5.25V A =200, V OL

0.4V

V =1.0k , C =100pF s =1.0k , C =100pF s =Vsmin.-0.05V, Tc=25mA =Vsmin.-0.05V, Tc=-30+75

mA

TEST CIRCUIT 1.

CC V 5V

V 5V

V (NOTE)

(1) Connecting of LED and R2 obtains a voltage drop indicator.(2) Connecting of C1 and selection of time constant with C1 and R1 set the power on delay time.