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Número de pieza | AS1431DR4S7 | |
Descripción | Precision Adjustable Shunt Reference | |
Fabricantes | ETC | |
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No Preview Available ! SEMICONDUCTOR
AS1431
Precision Adjustable Shunt Reference
Features
¥ Temperature-compensated: 30 ppm/¡C
¥ Trimmed 0.4% bandgap reference
¥ Internal amplifier with 150 mA capability
¥ Temperature range: Extended to Ð55
to125¡C
¥ Low frequency dynamic output
impedance: < 150 m½
¥ Low output noise
¥ Robust ESD protection
Description
The AS1431 is a three-terminal adjustable shunt regulator providing a
highly accurate 0.4% bandgap reference. The adjustable shunt regulator
is ideal for a wide variety of linear applications that can be implemented
using external components to obtain adjustable currents and voltages.
In the standard shunt configuration, the combination of low temperature
coefficient (TC), sharp turn-on characteristics, low output impedance and
programmable output voltage make this precision reference a perfect
zener diode replacement.
The AS1431 is characterized to operate over the full automotive tem-
perature range of Ð55 to 125¡C and is now available in the SOT-23 (5L)
package.
Pin Configuration Ñ Top view
TO-92 (LP)
CATHODE
ANODE
REFERENCE
CATHODE 1
ANODE 2
ANODE 3
N/C 4
SOIC (D)
8 REFERENCE
7 ANODE
6 ANODE
5 N/C
SOT-23/5L (DBV)
N/C REFERENCE
N/C
CATHODE
ANODE
Ordering Information
Circuit Type:
Precision Adjustable
Shunt Regulator
Temperature Range:
D = –55°C to +125°C
Bandgap Tolerance:
R4 = ±0.4%
AS1431 D R4 D 7
ASTEC Semiconductor
1
SOT-89 (S)
CATHODE
ANODE
REFERENCE
Packaging Option:
A = Ammo Pack
B = Bulk
T = Tube
7 = Tape and Reel (7" Reel Dia)
13 = Tape and Reel (13" Reel Dia)
Package Style:
D = SOIC
DBV = SOT-23/5L
LP = TO-92
S = SOT-89
1 page Precision Adjustable Shunt Reference
Typical Performance Curves
AS1431
900
800
700
600
500
400
300
200
100
0
–100
–200
–1.0
Low Current Operating Characteristics
VKA = VREF
Temperature Range: –55 to 125°C
125°C
25°C
–55°C
0 1.0 2.0
VKA – Cathode Voltage (V)
Figure 2
3.0
150
125
100
75
50
25
0
–25
–50
–75
–100
–2
High Current Operating Characteristics
VKA = VREF
Temperature Range: –55 to 125°C
–1 0
1
VKA – Cathode Voltage (V)
2
Figure 3
3
Off State Leakage
100
VKA = 36 V
VREF = 0 V
10
1
0.1
0.01
–60
–30 0
30 60
90
TA – Ambient Temperature (°C)
Figure 4
120
Reference Voltage vs Ambient Temperature
2.53
2.52
VKA = VREF
IK = 10 mA
2.51
2.50
VREF = 2.500 V at 25°C
2.49
2.48
2.47
2.46
2.45
–60
–30 0 30 60 90
TA – Ambient Temperature (°C)
120
Figure 5
ASTEC Semiconductor
5
5 Page |
Páginas | Total 8 Páginas | |
PDF Descargar | [ Datasheet AS1431DR4S7.PDF ] |
Número de pieza | Descripción | Fabricantes |
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AS1431DR4SB | Precision Adjustable Shunt Reference | ETC |
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