©2002 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.3
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 syst em from supply vo ltage belo w no rma l vol tage l evel at
the time the power on and instantaneous power off in
systems.
Internal Block Diagram
INPUT
1:TO-92
3:SOT-89
GND
2:TO-92
2:SOT-89
OUT
3:TO-92
1:SOT-89
VREF
INPUT
1:TO-92
3:SOT-89
GND
2:TO-92
2:SOT-89
OUT
3:TO-92
1:SOT-89
VREF
1
2
3
KA75XXX
Voltage Detector
TO-92
1
1. Input 2. GND 3. Outpu t
SOT-89
1
KA75XXX
2
Absolute Maximum Rating (TA=25°
°°
°C)
Electrical Characteristics (TA=25°
°°
°C)
Characteristic Symbol Value Unit
Supply Voltage Vcc 0.3 ~ +15.0 V
Detecting Voltage VDET 2.5/2.7/2.9/3.1
3.3/3.6/3.9/4.2/4.5 V
Hysteresis Voltage VHYS 50 mV
Operating Temperature TOPR -25 ~ +85 °C
Storage Temperature TSTG -50 ~ +150 °C
Power Dissipation
TO-92
SOT-89 PD200
500 mW
Detecting Voltage Temperature Coefficient ∆VDET/∆TR
L = 200Ω, +0.01 %/°C
Characteristic Symbol Test Conditions Min Typ Max Unit
Detecting Voltage VDET
KA75250
KA75270
KA75290
KA75310
KA75330
KA75360
KA75390
KA75420
KA75450
2.35
2.55
2.75
2.95
3.15
3.45
3.75
4.05
4.35
2.5
2.7
2.9
3.1
3.3
3.6
3.9
4.2
4.5
2.65
2.85
3.05
3.25
3.45
3.75
4.05
4.35
4.65
V
Low Output Voltage VOL RL = 200Ω--0.4V
Output Leakage Current ILKG VCC = 15V - - 0.1 uA
Hysteresis Voltage VHYS RL = 200Ω30 50 100 mV
Detecting Voltage Temperature
Coefficient ∆VDET/∆TR
L = 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 On Time) IOLI VCC = VDET(MIN) -0.05V,
TA = 25°C10 20 30 mA
Output Current (At On Time) IOLII VCC = VDET(MIN) - 0.05V
TA = -25 ~ +85°C81630mA
RL= 200Ω
VOL ≤ 0.4V
KA75XXX
3
Test Circuit 1.
Test Circuit 2.
Test Circuit 3.
KA75XXX
INPUT
10u
10V
GND
OUTPUT
A1
M
+
A2
V1
KA75XXX
INPUT
10u
10V
GND
OUTPUT
A1
M
++
A2
V1
0.1u
50V 10u
50V
+
RL
5V
INPUT PULSE
KA75XXX
INPUT
GND
OUTPUT
0.1u
50V 10u
50V
++
RL
5V
INPUT PULSE
KA75XXX
INPUT
GND
OUTPUT
VCC
RL
LED
KA75XXX
INPUT
GND
OUTPUT
VCC
RL
LED
KA75XXX
INPUT
GND
OUTPUT
KA75XXX
4
Applica tion Cir cuit
VCC
RL
KA75XXX
INPUT
GND
OUTPUT
Vcc
CPU
GND
RESET
VCC
RL
KA75XXX
INPUT
GND
OUTPUT
Vcc
CPU
GND
RESET
KA75XXX
5
Mechanical Dimensions
Package Dimensions in millimeters
TO-92
0.46
±0.10
1.27TYP
(R2.29)
3.86MAX
[1.27
±0.20
]1.27TYP
[1.27
±0.20
]
3.60
±0.20
14.47
±0.40
1.02
±0.10
(0.25) 4.58
±0.20
4.58
+0.25
–0.15
0.38
+0.10
–0.05
0.38
+0.10
–0.05
KA75XXX
6
Mechanical Dimensions (Continued)
Package Dimensions in millimeters
SOT-89
0.40
±0.10
2.50
±0.20
(0.50)
(0.40)
4.10
±0.20
0.40
+0.10
–0.05
0.50
±0.10
1.65
±0.10
4.50
±0.20
1.50
±0.20
C0.2
1.50 TYP 1.50 TYP
(1.10)
KA75XXX
7
Ordering Information
Product Number Package Operating Temperature
KA75250Z
TO-92
-25 ~ +85°C
KA75270Z
KA75290Z
KA75310Z
KA75330Z
KA75360Z
KA75390Z
KA75420Z
KA75450Z
KA75250M
SOT-89
KA75270M
KA75290M
KA75310M
KA75330M
KA75360M
KA75390M
KA75420M
KA75450M
KA75XXX
9/10/02 0.0m 001
Stock#DSxxxxxxxx
2002 Fairchild Semicond uctor Corporation
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FAIRCHILD’S PRODUCTS AR E NOT AUTHORIZED FOR USE AS C RITICAL COMPONENTS I N LIFE S UPPORT DEVICE S
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORA TION. As used he rein :
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.
2. A critical component in any component of a life support
device or syst em who se failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effec tiv ene ss.
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