BT75A22S-RF [KODENSHI]
Voltage Detector; 电压检测器
| 型号： | BT75A22S-RF |
| 厂家： | 
KODENSHI KOREA CORP. |
| 描述： | Voltage Detector |
| 文件： | 总6页 (文件大小：200K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TECHNICAL DATA
KK75Axx
Voltage Detector
FUNCTIONS
• Detecting against error operations at the power ON/OFF
• Resetting function for low voltage microprocessor
• Checking low battery
TO-92
• Active Low
• CMOS or open drain output (mask option)
• Tolerance ± 2%
SS VCC OUT
V
FEATURES
• Low Power Consumption
• Low Temperature Coefficient
• Built-in Voltage Reference
• Comparator Hysteresis
V
SS
3
SOT-23
• TO-92, SOT-23 packages are available
2
1
OUT
V
CC
GENERAL DESCRIPTION
The KK75AXX series are the voltage detectors, consist of a high-precision voltage reference, a comparator with
precise thresholds and built-in hysteresis and an output driver.
ABSOLUTE MAXIMUM RATINGS (TA = 25oC)
Characteristic
Symbol
Value
Unit
Supply Voltage
VCC
Topr
Tstg
IO
-0.3 ~ +8.0
-10 ~ +70
-40 ~ +125
30
V
oC
Operating Temperature
Storage Temperature
Output Current
oC
mA
1
KK75Axx
ELECTRICAL CHARACTERISTICS (TA = 25oC, unless otherwise specified)
Characteristic
Supply Voltage
Symbol
Test Conditions
Min
Typ
Max
Unit
VCC
1.2
5.5
V
2.16
2.35
2.50
2.65
2.74
3.23
3.82
4.12
4.61
4.90
2.20
2.40
2.55
2.70
2.80
3.30
3.90
4.20
4.70
5.00
8
2.24
2.45
2.60
2.75
2.86
3.37
3.98
4.28
4.79
5.10
15
V
Detecting Voltage
VDET
Supply Current
ICC
VOL
VOH
VHYS
VCC = 5.0V, No Load
µA
V
Low Output Voltage
High Output Voltage
Hysteresis Voltage
VCC = VDET–0.2V, IOL = 0.1mA
VCC = VDET+0.2V, IOH = 0.1mA
0.1
0.3
VCC – 0.3V
V
2.0
%
Detective Voltage Temperature
Coefficient
-10oC < TA <70oC
%/oC
∆VDET
∆T × ∆VDET
± 0.02
BLOCK DIAGRAM
CMOS OUTPUT
OPEN DRAIN OUTPUT
V
CC
V
CC
R
A
R
A
OUT
V
B
V
B
+
+
OUT
-
-
R
B
R
R
B
V
REF
VREF
V
SS
VSS
C
R
C
FUNCTIONAL DESCRIPTION
The KK75AXX series is the set of voltage detectors equipped with a high stability voltage reference which is
connected to the negative input of a comparator - denoted as VREF in block diagram.
When the voltage drop to the positive input of the comparator (VB) is high than VREF, VOUT goes high.
If VCC is decreased so that VB falls to a value less than VREF, the comparator output inverts from high to low, VOUT goes low.
The device has hysteresis to prevent the circuit from oscillation when VB ≈ VREF
.
If VCC falls below the minimum operating voltage, the output becomes undefined.
The detectable voltage is defined as:
RA+RB+RC
RB+RC
V −
DET( )
=
×V
REF
The release voltage is defined as:
RA+RB
RB
DET (+) =
V
× V
REF
The hysteresis width is:
V
=
V
(+) − V (−)
DET
HYS
DET
2
KK75Axx
ELECTRICAL CHARACTERISTICS
1. OUTPUT VOLTAGE vs. SUPPLY VOLTAGE
BT75A25
2. OUTPUT LOW CURRENT vs. SUPPLY VOLTAGE
BT75A25
3
1
0
Ta=25OC
V
OUT=0.5V
8
2
1
0
6
4
2
0
Ta=25OC
0
1
3
2
0
1.0 1.5
0.5
2.0 2.5 3.0
Supply Voltage: VCC (V)
Supply Voltage: VCC (V)
3. NORMALIZED VOL vs. TEMPERATURE
NORMALIZED VOH vs. TEMPERATURE
1.06
1.04
1.02
1.6
1.4
1.2
1
V
CC=2.5V, IOH=1.5mA
1
0.98
0.96
0.94
V
CC=5V, IOH=3.5mA
CC=3.5V, IOH=2.5mA
0.8
0.6
V
-50
+50
(OC)
+100
0
-50
0
+50
+100
Temperature, T
A
(OC)
Temperature, T
A
4. VOL vs. OUTPUT CURRENT
VCC - VOH vs. OUTPUT CURRENT
500
400
300
200
100
0
800
700
600
500
400
300
200
100
0
V
CC=1.6V
V
CC=5V
V
CC=2.5V
V
CC=3.5V
V
CC=5V
4
8
2
6
0
4
8
2
6
0
Output Current, IOH (mA)
Output Current, IOL (mA)
3
KK75Axx
5. VOL vs. SUPPLY VOLTAGE
VCC - VOH vs. SUPPLY VOLTAGE
500
400
300
200
100
0
500
400
300
200
100
0
I
OH=4mA
I
OH=2mA
I
OL=4mA
I
OH=1mA
I
OL=2mA
I
OL=1mA
I
OH=500
2
µA
I
OL=500µA
1.5
1.5
3.5
Supply Voltage, VCC (V)
4
5
2.5
Supply Voltage, VCC (V)
2.5
3.5
4.5
3
4.5
6. SUPPLY CURRENT vs. TEMPERATURE
NORMALIZED THRESHOLD vs. TEMPERATURE
1.02
1.015
30
1.010
1.005
1.000
0.995
0.99
20
10
V
CC=5V
V
CC=2.0V
0.985
0.98
0
-50
+50
(OC)
0
+100
-50
+50
(OC)
+100
0
Temperature, T
A
Temperature, T
A
ORDERING INFORMATION
BT75A XX XX - XX
PF = Pb Free
22 -> 2.20V
24 -> 2.40V
25 -> 2.55V
S = SOT-23
LS = TO-92 Straight (Bulk)
LF = TO-92 Form (Taping)
.
.
42 -> 4.20V
47 -> 4.70V
50 -> 5.00V
4
KK75Axx
PACKAGE DIMENSIONS
SOT-23
b
A
Dimension
mm
min
0.75
0.25
0.38
0.50
1.20
2.10
2.80
0.85
0.40
0.09
max
0.95
1.10
0.46
0.65
1.40
2.50
3.00
1.05
0.60
0.15
C
A
A1
b
C
D
D1
E
D1
D
Q
A1
e
e
e
L
L
E
Q
5
KK75Axx
TO-92
6
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