KA75270Z [FAIRCHILD]
Voltage Detector; 电压检测器
| 型号： | KA75270Z |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | Voltage Detector |
| 文件： | 总8页 (文件大小：50K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
www.fairchildsemi.com
KA75XXX
Voltage Detector
Features
Description
• Detecting Against Error Operations At The Power On/off.
• Resetting Function For The Low Voltage Microprocessor.
• Checking Low Battery
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
1
INPUT
3
OUT
VREF
2
GND
Rev. 1.0.3
©2002 Fairchild Semiconductor Corporation
KA75XXX
Absolute Maximum Rating (T =25°C)
A
Characteristic
Symbol
Value
Unit
Supply Voltage
Vcc
0.3 ~ +15.0
V
2.5/2.7/2.9/3.1
3.3/3.6/3.9/4.2/4.5
Detecting Voltage
V
V
V
DET
Hysteresis Voltage
50
mV
°C
HYS
OPR
Operating Temperature
Storage Temperature
T
-25 ~ +85
-50 ~ +150
T
STG
°C
Power Dissipation
TO-92
SOT-89
P
200
500
mW
D
Detecting Voltage Temperature Coefficient
∆V
DET
/∆T
R = 200Ω, +0.01
L
%/°C
Electrical Characteristics (T =25°C)
A
Characteristic
Symbol
Test Conditions
Min
Typ
Max
Unit
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
R = 200Ω
L
V
≤ 0.4V
OL
Detecting Voltage
V
V
DET
Low Output Voltage
Output Leakage Current
Hysteresis Voltage
V
R = 200Ω
-
-
-
-
0.4
0.1
V
OL
L
I
V
= 15V
uA
mV
LKG
CC
V
R = 200Ω
L
30
50
100
HYS
Detecting Voltage Temperature
Coefficient
∆V
DET
/∆T R = 200Ω
-
±0.01
-
%/°C
L
Circuit Current(At On Time)
Circuit Current(At Off Time)
Threshold Operating Voltage
" L"± Transmission Delay Time
" H"± Transmission Delay Time
I
V
V
= V
-0.05V
-
300
30
500
50
1.0
-
uA
uA
V
CCL
CC
CC
DET(MIN)
I
= 5.25V
-
-
CCH
V
R = 200Ω, V ≤ 0.4V
OL
0.8
10
TH(OPR)
L
T
R = 1.0kΩ, C = 100pF
0.6
-
us
us
OL
L
L
T
R = 1.0kΩ, C = 100pF
15
20
OH
L
L
V
= V
-0.05V,
CC
DET(MIN)
Output Current (At On Time)
Output Current (At On Time)
I
10
8
20
16
30
30
mA
mA
OLI
T = 25°C
A
V
= V
DET(MIN)
- 0.05V
CC
T = -25 ~ +85°C
I
OLII
A
2
KA75XXX
Test Circuit 1.
A1
A2
INPUT
OUTPUT
KA75XXX
V1
10u
10V
M
GND
Test Circuit 2.
INPUT
RL
KA75XXX
OUTPUT
0.1u
50V
10u
50V
5V
INPUT PULSE
GND
Test Circuit 3.
INPUT
RL
LED
VCC
KA75XXX
OUTPUT
GND
3
KA75XXX
Application Circuit
INPUT
RL
Vcc
CPU
GND
VCC
KA75XXX
OUTPUT
RESET
GND
4
KA75XXX
Mechanical Dimensions
Package
Dimensions in millimeters
TO-92
+0.25
–0.15
4.58
0.46 ±0.10
+0.10
–0.05
1.27TYP
1.27TYP
0.38
[1.27 ±0.20
]
[1.27 ±0.20]
3.60 ±0.20
(R2.29)
5
KA75XXX
Mechanical Dimensions (Continued)
Package
Dimensions in millimeters
SOT-89
1.50 ±0.20
4.50 ±0.20
1.65 ±0.10
(0.40)
C0.2
0.50 ±0.10
0.40 ±0.10
+0.10
0.40
–0.05
1.50 TYP 1.50 TYP
6
KA75XXX
Ordering Information
Product Number
KA75250Z
KA75270Z
KA75290Z
KA75310Z
KA75330Z
KA75360Z
KA75390Z
KA75420Z
KA75450Z
KA75250M
KA75270M
KA75290M
KA75310M
KA75330M
KA75360M
KA75390M
KA75420M
KA75450M
Package
Operating Temperature
TO-92
-25 ~ +85°C
SOT-89
7
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.
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.
www.fairchildsemi.com
9/10/02 0.0m 001
Stock#DSxxxxxxxx
2002 Fairchild Semiconductor Corporation
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