SPX431CM1 [SIPEX]
Precision Adjustable Shunt Regulator; 精密可调并联稳压器
| 型号： | SPX431CM1 |
| 厂家： | 
SIPEX CORPORATION |
| 描述： | Precision Adjustable Shunt Regulator |
| 文件： | 总9页 (文件大小：162K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SPX431C
Precision Adjustable Shunt Regulator
FEATURES
APPLICATIONS
•
•
•
•
•
•
Wide Operating Current…………………….1mA to 150mA
•
•
•
•
•
•
•
Battery Operating Equipments
Adjustable Supplies
Extended Termperature Range……………………… 105°C
Low Temperature Coeffecient 30 ppm/°C
Offered in TO-92, SOT-89 & SOT-23-5 Packages
Improved Replacement in Performance for TL431
Low Cost Solution
Switching Power Supplies
Error Amplifiers
Single Supply Amplifier
Monitors / VCR / TV
Personal Computers
PRODUCT DESCRIPTION
The SPX431C is a 3-Terminal Adjustable Shunt Voltage Regulator providing a highly accurate bandgap reference. SPX431C acts as
an open-loop error amplifier with a 2.5V temperature compensation reference. The SPX431C thermal stability, wide operating current
(150mA) and temperature range (105°C) makes it suitable for all variety of applications that are looking for a low cost solution with
high performance.
The output voltage may be adjusted to any value between VREF and 36V with 2 external resistors. The SPX431C is operating in full
industrial temperature range of 0°C to 105°C. The SPX431C is available in TO-92, SOT-23-5 and SOT-89 packages.
PIN CONFIGURATION
TO-92 (N)
SOT-89 (M1)
SOT-23-5 (M5)
REF
ANODE
1
2
3
5
4
SPX431C
SPX431C
1
1
3
2
3
2
REF
CATHODE
ANODE
CATHODE
REF
N/C N/C CATHODE
ANODE
Bottom View
Top View
Top View
CATHODE (K)
REFERENCE
(R)
+
-
2.5V
ANODE (A)
Rev. 10/30/00
SPX431C
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
VKA
IAK
Rating
37
Units
V
Cathode-Anode Reverse Breakdown
Anode-Cathode Forward Current
Operating Cathode Current
Reference Input Current
Continuous Power Dissipation at 25°C
TO-92
1
A
IKA
150
10
mA
mA
IREF
PD
775
200
mW
mW
mW
°C
°C
°C
SOT-23
1000
SOT-89
Junction Temperature
Storage Temperature
Lead Temperature (Soldering 10 sec.)
TJ
TSTG
TL
150
- 65 to +150
30
Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect reliability.
RECOMMENDED CONDITIONS
TYPICAL THERMAL RESISTANCE
Parameter
Symbol
VKA
Rating
VREF to 20
10
Unit
V
mA
Package Type
TO-92
Typical Derating
6.3 mW/°C
θJA
θJC
Cathode Voltage
Cathode Current
160°C/W
80°C/W
IK
SOT-23
575°C/W 150°C/W
1.7 mW/°C
SOT-89
110°C/W
8°C/W
9.1 mW/°C
ELECTRICAL CHARACTERISTICS at 25°C Ik @ 10mA Vk=Vref , unless otherwise specified.
Parameter
Symbol
Test Conditions
SPX431C
Unit
Max
Min
Typ
Reference Voltage
VREF
∆ VREF
∆VK
2.445
-2.7
-2
2.495
-1.0
2.545
V
TA = 25°C TC = 1
VREF to 10V
Ratio of Change in VREF to Cathode Voltage
mV/V
10V to 36V TC = 2
-0.4
0.3
4
1.2
1
1
Reference Input Current
IREF Temp Deviation
Min IK for Regulation
Off State Leakage
IREF
TC = 2
0.7
µA
µA
mA
µA
Over Temp. TC = 2
TC = 1
0.4
∆IREF
IK(MIN)
IK(OFF)
0.4
VREF = 0V,
0.04
V
KA = 36V TC=3
Dynamic Output Impedance
TC = Test Circuit
ZKA
TC = 1
0.15
0.5
Ω
Rev. 10/30/00
SPX431C
*CALCULATING AVERAGE TEMPERATURE COEFFICEINT (TC)
0
0
0
∆
VREF (mV)
∆
TA
∆
VREF
TC in mV/°C =
TC in mV/°C =
TC in ppm/°C =
∆T
∆
VREF
-10
x 100
(∆V )
REF at 25°C
TA
5000
0.5
∆
∆
VREF
V at 25°C
REF
x 106
∆
( )
0
15
30
45
60
75
90
105
∆
TA
0.07 mV/°C
0.003 %/°C
27 ppm/°C
TEST CIRCUITS
VIN
VKA = VREF
VIN
VKA
VIN
VKA
IREF
IK
IK
IK (OFF)
R
1
IREF
(VREF
)
R
2
1G-40
1G-38
1G-39
TEST CIRCUIT
For VKA > VREF
TEST CIRCUIT
For IROFF
TEST CIRCUIT
For VKA= VREF
Rev. 10/30/00
SPX431C
TYPICAL PERFORMANCE CURVES
Low Current Operating Characteristics
High Current Operating Characteristics
900
150
125
100
75
VKA = VREF
VKA = VREF
800
700
600
500
400
300
200
100
0
Temperature Range: - 0 °C to 125 °C
Temperature Range: - 0°C to 125 °C
50
25
105 °C
25 °C
-0°C
0
-25
-50
-75
-100
-100
-200
-2
-1
0
1
2
3
VKA - Cathode Voltage (V)
Figure 3
-1.0
0
1.0
2.0
3.0
VKA - Cathode Voltage (V)
Figure 2
Off State Leakage
Reference Voltage vs. Ambient Temperature
100
10
2.53
2.52
2.51
2.50
2.49
2.48
2.47
2.46
2.45
VKA = VREF
VKA = 36V
VREF = 0V
IK = 10 mA
VREF = 2.500 V at 25 °C
1
0.1
0.01
-60
-30
0
30
60
90
120
-60
-30
0
30
60
90
120
TA - Ambient Temperature ( °C)
Figure 4
TA - Ambient Temperature ( °C)
Figure 5
Rev. 10/30/00
SPX431C
TYPICAL PERFORMANCE CURVES
Reference Input Current
Reference Voltage Line Regulation
3.0
0
-10
-20
-30
R1 = 10 k
R2 =
IK = 10 mA
Ω
∞
2.5
2.0
1.5
1.0
0.5
0
0 °C
25 °C
75 °C
105 °C
-40
-50
0
3
6
9
12
15
18
21
24
27
30
VKA - Cathode Voltage (V)
Figure 7
-60
-30
0
30
60
90
120
TA - Ambient Temperature ( °C)
Figure 6
Noise Voltage
Low Frequency Dynamic Output Impedance
70
60
50
40
30
20
10
0
0.150
0.125
0.100
0.075
0.050
0.025
0.0
VKA = V
REF
IKA = 1 to 100 mA
f < 1 kHz
-60
-30
0
30
60
90
120
TA - Free Air Temperature
Figure 9
10
100
1 k
10 k
100 k
f - Frequency (Hz)
Figure 8
Rev. 10/30/00
SPX431C
TYPICAL PERFORMANCE CURVES
Dynamic Output Impedance
100
10
TA = 25 °C
IK = 1 to 100 mA
1.0
0.1
0.01
1 k
10 k
100 k
1 M
10 M
f - Frequency (Hz)
Figure 10
Small Signal Voltage Gain vs. Frequency
70
Temperature Range: -0°C to 125 °C
60
IK = 10 mA
50
40
30
20
10
0
OUT
230
Ω
IK
15 k
µ
9 F
8.25 k
GND
1 k
10 k
100 k
1 M
10 M
f - Frequency (Hz)
Figure 11
Rev. 10/30/00
SPX431C
TYPICAL PERFORMANCE CURVES
Pulse Response
6
INPUT
5
INPUT
MONITOR
220
Ω
4
OUT
3
OUTPUT
50
Ω
2
1
fP = 100 kHz
GND
0
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
t - Time ( s)
µ
Figure 12
Stability Boundary Conditions
100
90
80
70
60
50
40
30
20
10
0
A:
V
= VREF
KA
B:
C:
D:
V
= 5V at I = 10 mA
= 10V atKI = 10 mA
= 15V at IKK = 10 mA
KA
V
KA
V
KA
C
150
Ω
IK
STABILITY
REGION
CL
10 k
A
B
TA = 25 °C
D
100
101
102
103
104
105
106
107
CL - Load Capacitance (pF)
Figure 13
Rev. 10/30/00
SPX431C
ORDERING INFORMATION
Ordering No Precision
Output Voltage
Packages
5 Lead SOT-23
3 Lead SOT-89
3 Lead TO-92
.
2%
2%
2%
2.5V
2.5V
2.5V
SPX431CM5
SPX431CM1
SPX431CN
Corporation
SIGNAL PROCESSING EXCELLENCE
Sipex Corporation
Headquarters and Main Offices:
22 Linnell Circle
Billerica, MA 01821
TEL: (978) 667-8700
FAX: (978) 670-9001
e-mail: sales@sipex.com
233 South Hillview Drive
Milpitas, CA 95035
TEL: (408) 935-7600
FAX: (408) 934-7500
Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the application or use of any product or circuit described
hereing; neither does it convey any license under its patent rights nor the rights of others.
Rev. 10/30/00
Rev. 10/30/00
相关型号：
SPX431CM1-L/TR
Three Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, BIPolar, PSSO3, ROHS COMPLIANT, TO-243AA, SOT-89, 3 PIN
EXAR
SPX431CM5-L
1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.495V, PDSO5, ROHS COMPLIANT, MO-178AA, SOT-23, 5 PIN
ROCHESTER
SPX431CM5-L/TR
Three Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, PDSO5, ROHS COMPLIANT, MO-178AA, SOT-23, 5 PIN
SIPEX
SPX431CM5-L/TR
1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.495V, PDSO5, ROHS COMPLIANT, MO-178AA, SOT-23, 5 PIN
ROCHESTER
SPX431CN-L
Three Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, BIPolar, PBCY3, ROHS COMPLIANT, TO-226AA, TO-92, 3 PIN
EXAR
SPX431CN-L
Three Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, PBCY3, ROHS COMPLIANT, TO-226AA, TO-92, 3 PIN
SIPEX
SPX431CN-L/TR
Two Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, PBCY3, LEAD FREE, TO-92, 3 PIN
SIPEX
©2020 ICPDF网 联系我们和版权申明