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Datasheet ELM0431BA PDF ( 特性, スペック, ピン接続図 )

部品番号 ELM0431BA
部品説明 2.5V Programable shunt regulator
メーカ ELM
ロゴ ELM ロゴ 
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ELM0431BA Datasheet, ELM0431BA PDF,ピン配置, 機能
ELM0431BA 2.5V Programable shunt regulator
■General description
ELM0431BA is three-terminal adjustable shunt regulator utilizing an accurate 2.5V band-gap reference. The
output voltage can be set to any value between 2.5V (Vref) to 29V with two external resistors as shown in the
typical application circuit. The device exhibit a wide operating current range of 0.4 to 100 mA with a typical
dynamic impedance of 0.25Ω. The characteristics of these reference make it excellent replacements for zener
diodes in many applications such as digital voltmeters, power supplies, and op amp circuitry. The 2.5V volt
reference makes it convenient to obtain a stable reference from 5.0V logic supplies.
ELM0431BA shunt regulator is available in a SOT-23 package.
■Features
• Low cost solution
• Shunt capacity
• Output voltage range(adj.)
• Output impedance
• Trimmed band-gap design
• Package
: 100mA
: Set up to 29V
: Typ.0.25Ω
: 1%
: SOT-23
■Application
• Linear regulator
• Precision voltage reference
• Switching power supplies
• Battery operating equipment
• Instrumentation
■Maximum absolute ratings
Parameter
Cathode-Anode reverse breakdown voltage
Cathode –Anode current
Reference input current
Power dissipation
Junction temperature
Storage temperature
Symbol
Vka
Ika
Iref
Pd
Tj
Tstg
Limit
30
100
10
200
150
-65 to +150
Unit
V
mA
mA
mW
°C
°C
■Selection guide
ELM0431BA-S
Symbol
a Package
b Product version
c Taping direction
* Taping direction is one way.
B: SOT-23
A
S: Refer to PKG file
ELM0431 B A - S
↑↑ ↑
ab c
■Pin configuration
SOT-23(TOP VIEW)
3
12
Pin No.
1
2
3
Pin name
REFERENCE
CATHODE
ANODE
■Circuit
Cathod(K)
Reference(R)
Anode(A)
4 - 1 Rev.1.1

1 Page



ELM0431BA pdf, ピン配列
ELM0431BA 2.5V Programable shunt regulator
■Electrical characteristics
Vka=Vref, Ik=10mA, Top=25°C, unless otherwise stated
Parameter
Symbol
Condition
Min. Typ. Max. Unit Note
Reference voltage
Vref
2.470 2.495 2.520 V 1
Reference voltage
with temperature
ΔVref/
ΔTop
0.07 0.20 mV/°C 1
Ration of change in
Vref to cathode voltage
Vref/ Vref to 10V
Vin 10V to 30V
-2.7
-2.0
-1.0
-0.4
0.3 mV/V 2
Reference input current
Iref
0.7 4.0 μA 2
Iref temperature deviation ΔIref Ta=-20 to 85°C
0.4 1.2 μA 2
Min. Ik for regulation
Ik(min)
0.4 1.0 mA 1
Stand-by current
Istandby Vref=0V, Vka=30V
0.04 250 nA 3
Dynamic output impedance Zout f≤1kHz, Ik=1 to 100mA
0.25 0.50 Ω 1
Note : test circuit No.
■Test circuits
Vin
Vka Vin
Vka
Iref Ik
R1 Iref
Vref
R2
Ik
Test circuit 1 : Vka=Vref
Vin Vka
Ik(off)
Test circuit 2 : Vka>Vref
Test circuit 3 : Off state current
4- 3
Rev.1.1


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