MM1431AT [MITSUMI]
Precision Adjustable Shunt Regulator; 精密可调并联稳压器
| 型号： | MM1431AT |
| 厂家： | 
MITSUMI ELECTRONICS, CORP. |
| 描述： | Precision Adjustable Shunt Regulator |
| 文件： | 总5页 (文件大小：56K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Precision Adjustable Shunt Regulator MM1530 AT/AN
MITSUMI
Precision Adjustable Shunt Regulator
Monolithic IC MM1530 AT/AN
Outline
The MM1530AT/AN is 3-termial adjustable shunt regulator, which provides a highly accurate 0.8% bandgap
reference voltage. The output voltage can be adjusted to any value between reference voltage VREF and 12
volts with two external resistors. Moreover, there are a lot of ranges of the application as a zener diode
besides the replacement is possible because it has steep turn-on characteristics.
Features
1. Reference voltage tolerance
2. Output voltage can be adjusted
3. Low Dynamic Output Impedance
VREF=1.260V 0.8%
VREF≤Vo≤12V
ZKA =0.13Ω typ.
Package
TO-92 (TAPING)
SOT-25A
Pin Assignment
1
2
3
4
5
NC
SUB
5
4
3
1
2
3
Reference
Anode
Cathode
Reference
Anode
Cathode
1
2
1
2
3
-
SOT 25A
(TOP VIEW)
note:The second terminal is SUB, so connect the terminal to GND.
-
TO 92
(TAPING)
Precision Adjustable Shunt Regulator MM1530 AT/AN
MITSUMI
Equivalent Circuit Diagram
3
2
VK
1
REF
VA
-
TO 92 Package
*
(Ambient Temperature, Ta=25°C)
Absolute Maximum Ratings
Item
Symbol
TOPR
TSTG
VKA
Ratings
30~+85
Unit
°C
°C
V
Operating Temperature
Storage Temperature
Cathode to Anode voltage
Cathode current
-
-40~+125
12
50
50
IK
mA
µA
Reference input current
IREF
500 (TO-92)
Allowable loss
Pd
mW
150 (SOT-25A)
(Ambient Temperature, Ta=25°C)
Recommended Operating Conditions
Cathode to Anode voltage
Cathode current
VKA
IK
VREF~12
V
1~30
mA
Precision Adjustable Shunt Regulator MM1530 AT/AN
MITSUMI
(Ambient Temperature, Ta=25°C)
Electrical Characteristics
Item
Symbol
VREF
Measurement conditions
Min. Typ. Max. Unit
Reference voltage
VKA=VREF
1.250 1.260 1.270
V
Reference voltage deviation
over temperature range
V
REF
/
Ta
VKA=VREF Ta=0~+70°C
3
12
mV
<
<
=
VREF
VKA=VREF, VREF VKA 5V
1.0
1.0
2
2.7 mV/V
2.0 mV/V
=
Lord regulation
<
5V VKA 12V
=
<
/ VKA
IREF
=
Reference input current
Reference input current deviation
over temperature range
Minimum Cathode Current
Off-state Cathode Current
Dynamic Impedance
VKA=VREF R1=10K, R2=∞
4
µA
I
REF
/
Ta
VKA=VREF, R1=10K, R2=∞ Ta=0~+70°C
0.3
1.2
µA
IKmin.
IOFF
VKA=VREF,
VREF=2%
0.15 0.3 mA
VKA=12V, VREF=0V
0.1
1.0
µA
<
ZKA
VKA=VREF, f 1kHz IK=1~30mA
=
0.13 0.5
Ω
Measuring Circuit
(1) VKA=VREF
(3) IOFF
>
(2) VKA VREF Vo=VKA=VREF
(4) Open Loop Voltage Gain
=
Precision Adjustable Shunt Regulator MM1530 AT/AN
MITSUMI
Characteristics
High Voltage Operating Characteristics
Input Current
1200
4
1000
800
600
400
200
0
3
2
1
0
0
0.5
1
1.5
-
50
0
50
100
150
Cathode Voltage VKA (V)
Ambient Temperature Ta (°C)
Low Current Operating Characteristics
Reference Voltage
1.3
1.28
1.26
1.24
1
0.8
0.6
0.4
0.2
0
1.22
1.2
-
0.2
0
5
10
15
20
25
0
10
20
30
Cathode Voltage VKA (V)
Cathode Voltage VKA (V)
Detection Voltage Character
Off State Leakage
1
1.3
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
1.28
1.26
1.24
1.22
1.2
0.1
0
-
-
50
0
50
100
150
50
0
50
100
150
Ambient Temperature Ta (°C)
Ambient Temperature Ta (°C)
Precision Adjustable Shunt Regulator MM1530 AT/AN
Open loop Voltage Gain · Phase
MITSUMI
Dynamic Output Impedance
100
10
200
150
100
50
10V
1
7.5V
5V
2.5V
0
0.1
-
50
1k
10k
100k
1M
10M
1k
10k
100k
1M
10M
Frequency f (Hz)
Frequency f (Hz)
Pulse Response
Stability Boundary Conditions
6
5
4
3
2
1
3
2.5
2
VIN
1.5
1
VOUT
0.5
0
0
0
10
20
30
00.1µ
0.01µ
0.1µ
1µ
10µ
Time t (µs)
Load Capacitance CL (µF)
Notes concerning stability operation region
The MM1431AT/AN requires external capasitors for regulator stability. These capacitors must be correctly
selected for good performance.
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