KIA7029中文资料

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 :KIA7019 1.9V Typ. KIA7033 3.3V Typ.KIA7021 2.1V Typ. KIA7034 3.4V Typ. KIA7023 2.3V Typ. KIA7035 3.5V Typ. KIA7025 2.5V Typ. KIA7036 3.6V Typ.KIA7027 2.7V Typ. KIA7039 3.9V Typ.KIA7029 2.9V Typ. KIA7042 4.2V Typ.KIA7031 3.1V Typ. KIA7045 4.5V Typ.KIA7032 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 (V CC =5V, V EE =GND, Ta=25)

MAXIMUM RATINGS (Ta=25

)

-0.3

+15.0KIA7019AP 45AP

400KIA7019AF 45AF KIA7019AT 45AT

-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.

PRECAUTION FOR USE

SOLDERING

Flat Package (SOT-89 Package)

Elements mounting styles of electronic devices are gaining in further diversification over recent years, and needs for components are all the more expanding in varieties. Especially, surface mounting is steadily penetrating into industrial

segments as a world-wide popular technical trend. Although exposure to high temperature is inevitable during soldering we recommend limiting the soldering temperature to low levels as shown in figure for the sake of retaining inherent

excellent reliability.

(a) When employing solder reflow method

Atmospheric temperature around resin surfaces must be less than 240, not exceeding the time length of 10 sec.

Recommend temperature profile Precautions on heating method

When resin in kept exposed to high temperature for a long time, device reliability may be marred.

Therefore, it is essential to complete soldering in the shortest time possible to prevent temperature of resin from rising.(b) When employing halogen lamps or infrared-ray heaters

When halogen lamps or infrared-ray heaters are used, avoid direct irradiation onto resin surfaces; such devices cause extensive localized temperature rise.

Please keep a reflow solder operating when SOT-89 package's soldering.