SPX431LM1-L/TR [SIPEX]
Two Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, PSSO3, SOT-89, 3 PIN;
| 型号： | SPX431LM1-L/TR |
| 厂家： | 
SIPEX CORPORATION |
| 描述： | Two Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, PSSO3, SOT-89, 3 PIN 输出元件 |
| 文件： | 总12页 (文件大小：97K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
®
SPX431L
Precision Adjustable Shunt Regulator
FEATURES
■ Tight Voltage Tolerance 0.5% at 10mA
■ Wide Operating Current 1mA to 100mA
ANODE
SPX431L
■ Extended Temperature Range:
0°C to 105°C
■ Low Temperature Coefficient 30 ppm/°C
3 Pin SOT-23
1
■ Improved Replacement in Performance for
REF
CATHODE
TL431 and AS431
Now Available in Lead Free Packaging
■ Low Cost Solution
APPLICATIONS
■ Error Amplifiers
■ Single Supply Amplifier
■ Monitors / VCRs / TVs
■ Battery Operating Equipment
■ Adjustable Supplies
■ Switching Power Supplies
■ Personal Computers
DESCRIPTION
The SPX431L is a 3-terminal adjustable shunt voltage regulator providing a highly accurate
bandgap reference.The SPX431L acts as an open-loop error amplifier with a 2.5V temperature
compensation reference.The SPX431L’s thermal stability, wide operating current (100mA) and
temperature range (0°C to 105°C) makes it suitable for a variety of applications that require a
low cost, high performance solution. SPX431L tolerance of 0.5% is proven to be sufficient to
overcome all of the other errors in the system to virtually eliminate the need for trimming in the
power supply manufacturer's assembly line and contribute a significant cost savings.
The output voltage may be adjusted to any value between VREF and 20V with two external
resistors. The SPX431L is available in TO-92, SOIC-8, SOT-89, and SOT-23-3 packages.
BLOCK DIAGRAM
Cathode (K)
Reference
(R)
+
-
2.5V
Anode (A)
Date: 5/25/04
SPX431L Precision Adjustable Shunt Regulator
© Copyright 2004 Sipex Corporation5
1
ABSOLUTE MAXIMUM RATINGS
Junction Temperature TJ ........................................................... 150 °C
Storage Temperature TSTG .............................................. -65 to 150 °C
Lead Temperature (Soldering 10 sec.) TL .................................. 300°C
Cathode-Anode Reverse Breakdown VKA ....................................... 20V
Anode-Cathode Forward Current, (<10ms) IAK ................................. 1A
Operating Cathode Current IKA .................................................. 100mA
Reference Input Current IREF ........................................................ 10mA
Continuos Power Dissipation at 25°C PD
NOTE: 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 condi-
tions for extended periods may affect reliability.
TO-92 ..................................................................... 775mW
SOT-23 .................................................................. 200 mW
SOIC-8 .................................................................... 750mW
SOT-89 ................................................................. 1000mW
RECOMMENDED CONDITIONS
TYPICAL THERMAL RESISTANCES
PARAMETER
SYMBOL
VKA
RATING
VREF to 20
10
UNIT
V
PACKAGE
TO-92
0JA
0JC
TYPICAL DERATING
6.3 mW/°C
Cathode Voltage
Cathode Current
160°C/W 80°C/W
575°C/W 150°C/W
175°C/W 45°C/W
110°C/W 8°C/W
IK
mA
SOT-23
SOIC-8
SOT-89
1.7 mW/°C
5.7 mW/°C
9.1 mW/°C
Typical deratings of the thermal resistances are given for ambient
temperature >25°.
ELECTRICAL CHARACTERISTICS
Electrical characteristics at 25°C IK = 10mA VK = VREF, unless otherwise specified.
PARAMETER
SYMBOL FIGURE
CONDITIONS
MIN
TYP
MAX
UNITS
SPX431LA
Reference Voltage
∆VREF withTemp.*
VREF
TC
2
2
3
2.490
2.503
0.07
2.515
0.20
V
mV/°C
mV/V
Ratio of Change in VREF
to Cathode Voltage
∆ VREF
∆VK
VREF to 10V
10V to 20V
-2.7
-2.0
-1.0
-0.4
0.3
4.0
1.2
1.0
1.0
0.5
Reference Input Current
IREF Temp Deviation
Min IK for Regulation
Off State Leakage
IREF
∆IREF
IK(MIN)
IK(OFF)
ZKA
3
3
2
4
2
0.7
0.4
µA
µA
mA
µA
Ω
TJ = 0°C to 105°C
0.4
VREF = 0V, VKA = 20V
0.04
0.15
Dynamic Output
Impedance
ƒz ≤ 1kHz
IK = 1 to 100mA
SPX431L
Reference Voltage
∆VREF withTemp.*
VREF
TC
2
2
3
2.470
2.495
0.07
2.520
0.20
V
mV/°C
mV/V
Ratio of Change in VREF
to Cathode Voltage
∆ VREF
∆VK
VREF to 10V
10V to 20V
-2.7
-2.0
-1.0
-0.4
0.3
4.0
1.2
1.0
1.0
0.5
Reference Input Current
IREF Temp Deviation
Min IK for Regulation
Off State Leakage
IREF
∆IREF
IK(MIN)
IK(OFF)
ZKA
3
3
2
4
2
0.7
0.4
µA
µA
mA
µA
Ω
TJ = 0°C to 105°C
0.4
VREF = 0V, VKA = 20V
0.04
0.15
Dynamic Output
Impedance
ƒz ≤ 1kHz
IK = 1 to 100mA
Date: 5/25/04
SPX431L Precision Adjustable Shunt Regulator
© Copyright 2004 Sipex Corporation5
2
ELECTRICAL CHARACTERISTICS
Electrical characteristics at 25°C IK = 10mA VK = VREF, unless otherwise specified.
PARAMETER
SYMBOL
FIGURE
CONDITIONS
MIN
TYP
MAX
UNITS
SPX431LC
Reference Voltage
∆VREF withTemp.*
VREF
TC
2
2
3
2.445
2.495
0.07
2.545
0.20
V
mV/°C
mV/V
Ratio of Change in VREF
to Cathode Voltage
∆ VREF
∆VK
VREF to 10V
10V to 20V
-2.7
-2.0
-1.0
-0.4
0.3
4.0
1.2
1.0
1.0
0.5
Reference Input Current
IREF Temp Deviation
Min IK for Regulation
Off State Leakage
IREF
∆IREF
IK(MIN)
IK(OFF)
ZKA
3
3
2
4
2
0.7
0.4
µA
µA
mA
µA
Ω
TJ = 0°C to 105°C
0.4
VREF = 0V, VKA = 16V
0.04
0.15
Dynamic Output
Impedance
ƒz ≤ 1kHz
IK = 1 to 100mA
Operating Range (TJ) = 0°C to 105°C.
* See appropiate test circuit (Figure 2)
CALCULATING AVERAGE TEMPERATURE COEFFICIENT (TC)
mV
0
ppm
0
%
0
∆
VREF (mV)
∆
VREF
•
TC in mV/°C =
∆TA
∆
T
∆
VREF
x 100
x 106
-10
(
∆
VREF at 25°C
)
)
•
TC in %/°C =
5000
0.5
∆TA
∆VREF
(
∆
VREF at 25°C
•
TC in ppm/°C =
0
15
30
45
60
75
90
105
∆TA
Junction Temperature (°C)
0.07 mV/°C
0.003 %/°C
27 ppm/°C
Figure 1. VREF VS Temperature.
Date: 5/25/04
SPX431L Precision Adjustable Shunt Regulator
© Copyright 2004 Sipex Corporation5
3
TEST CIRCUITS
VIN
VKA = VREF
VIN
VKA
VIN
VKA
IK (OFF)
R1
IK
IREF
IK
IREF
(VREF
)
R2
Figure 2. Test Circuit for VKA = VREF
Figure 3. Test Circuit for VKA > VREF
Figure 4. Test Circuit for IKOFF
TYPICAL PERFORMANCE CHARACTERISTICS
150
2.53
125
100
75
V
= V
REF
KA
V
K
= V
REF
KA
= 10mA
2.52
2.51
2.50
2.49
2.48
2.47
2.46
2.45
0°C to 105°C
I
50
25
0
-25
-50
-75
-100
-2
-1
0
1
2
3
-60
-30 0
T Ambient Temperature (°C)
A
30
60
90
120
V
Cathode Voltage (V)
KA
Figure 5. High Current Operating Characteristics
Figure 6. Reference Voltage VS Ambient Tempetature
900
800
3.0
R1 = 10kΩ
V
= V
REF
KA
R2 = ∞
K
2.5
0° to 105°C
700
600
500
400
300
200
100
0
I
= 10mA
2.0
1.5
1.0
0.5
0
105°C
25°C
-0°C
-100
-200
-60
-30
0
30
60
90
120
-1.0
0
1.0
2.0
3.0
T
A
Ambient Temperature (°C)
V
Cathode Voltage (V)
KA
Figure 8. Reference Input Current VS Ambient
Temperature.
Figure 7. Low Current Operating Characteristics.
Date: 5/25/04
SPX431L Precision Adjustable Shunt Regulator
© Copyright 2004 Sipex Corporation5
4
TYPICAL PERFORMANCE CHARACTERISTICS
70
60
50
40
30
20
0
-10
-20
-30
-40
0°C
25°C
75°C
125°C
I
= 10mA
KA
VKA = VREF
10 IK = 10mA
TA = 25°C
0
10
-50
0
100
1K
10K
100K
3
6
9
12 15 18 21 24 27 30
V
Cathode Voltage (V)
(Hz)
f Frecuency
KA
Figure 10. Noise Voltage VS Frequency
Figure 9. Reference Voltage Line Regulation VS
Cathode Voltage and TAMBIENT
REF LEVEL
60.000dB
0.0deg
/DIV
10.000dB
45.000deg
MARKER 25 297 698.000 Hz
MAG (A/R) -0.025 dB
MARKER 25 297 698.000 Hz
0.150
V
= V
REF
KA
PHASE (A/R)
93.320 deg
60dB
50dB
I
= 1 to 100mA
f≤1kHz
215°
180°
K
0.125
0.100
0.075
0.050
0.025
0.0
PHASE
135°
40dB
30dB
20dB
10dB
0dB
90°
45°
0°
GAIN
-45°
-90°
-10dB
-135°
-20dB
-30dB
-180°
-215°
-60
-30
0
30
60
90
120
-40dB
10
100
1K
10K
100K
1M
10M
T
Free Air Temperature
A
START 10.000Hz
STOP 50 000 000.000Hz
Figure 12. Small Signal Gain and Phase VS Frequency;
IK = 10mA, TA = 25°C
Figure 11. Low Frequency Dynamic Output Impedance
VS TAMBIENT
VOUT
VV
IINN
230Ω
15kΩ
IK
9µF
V
V
OUT
OUT
VIN
8.25kΩ
GND
Figure 13. Test Circuit for Gain and Phase Frequency
Response
Figure 14. FZ = 100kHz, IK = 10mA, TA = 25°C
Date: 5/25/04
SPX431L Precision Adjustable Shunt Regulator
© Copyright 2004 Sipex Corporation5
5
TYPICAL PERFORMANCE CHARACTERISTICS
100
V
IN
A: V = V
KA REF
90
80
70
60
50
40
30
20
10
0
B: V = 5V at I =10mA
250Ω
KA
K
C: V =10V at I =10mA
KA
K
D: V =15V at I =10mA
KA
K
VOUT
C
IK
STABLE
STABLE
fp = 100kHz
A
50Ω
T
A = 25°C
B
D
100 101 102
103 104 105 106 107
GND
C
Load Capacitance (pF)
L
Figure 16. Stability Boundry Conditions
Figure 15. Test Circuit for Pulse Response
100
150 Ω
T
= 25°C
A
I
= 1 to 100mA
K
IK
10
1.0
R
CL
10kΩ
0.1
0.01
1K
10K
100K
1M
10M
F Frecuency (Hz)
Figure 18. Dynamic Output Impedance TA = 25°C,
Figure 17. Test Circuit for Stability
IK = 1 to 100mA
100
R3
V
V
IN
OUT
10
R1
0.1%
V
V
= 20V
KA
= 0V
REF
1
V
REF
SPX431L
0.1
R2
0.1%
0.01
-50
0
50
100
150
T
Ambient Temperature (°C)
A
Figure 19. Off State Leakage
Figure 20. Shunt Regulator VOUT = (1+R1/R2)VREF
Date: 5/25/04
SPX431L Precision Adjustable Shunt Regulator
© Copyright 2004 Sipex Corporation5
6
TYPICAL PERFORMANCE CHARACTERISTICS
V
V
OUT
IN
I
SINK
R3
R2
R1
0.1%
Opto Isolator
Q1
R3 sets feedback gain,
C1 provides feedback
compensation
Isolated
Feedback
SPX431L
C1
+
C2
R1
0.1%
SPX431L
R2
0.1%
V
RTN
OUT
Figure 22. Reference Amplifier for Isolated Feedback in
Off-Line DC-DC Converters
Figure 21. Constant Current Sink, ISINK = VREF/R1
V
V
IN
V
OUT
IN
R5
R4
R1
0.1%
R3
R2
0.1%
Q1
R3
R1
0.1%
C1
V
OUT
SPX431L
SPX431L
R2
0.1%
Figure 24. High Current Shunt regulator
VOUT = (1+R1/R2)VREF
Figure 23. Precision High Current Series Regulator
VOUT = (1+R1/R2)VREF
V
CC
* Resistor values are chosen such that the effect to
IREF is negligible.
R2
V
OUT
R1
V
IN
SPX431L
Figure 25. Single Supply Comparator with Temperature
Compensated Threshold. VIN threshold = 2.5V.
Date: 5/25/04
SPX431L Precision Adjustable Shunt Regulator
© Copyright 2004 Sipex Corporation5
7
PINOUTS
8-Pin SOIC (S)
SOT-23-3 (M)
TO-92 (N)
SOT-89 (M1)
3
1
2
3
4
8
7
6
5
REF
CATHODE
ANODE
ANODE
N/C
1
2
3
ANODE
ANODE
ANODE
N/C
1
3
1
2
2
CATHODE
REF
CATHODE
REF
REF
CATHODE
ANODE
ANODE
Top View
Bottom View
Top View
Top View
PACKAGE: 8 PIN NSOIC
D
e
E/2
E1
E
E1/2
SEE VIEW C
1
b
INDEX AREA
(D/2 X E1/2)
Ø1
A
TOP VIEW
Gauge Plane
L2
Ø
Ø1
Seating Plane
L
L1
VIEW C
A2
A
SEATING PLANE
A1
SIDE VIEW
b
WITH PLATING
DIMENSIONS
Minimum/Maximum
(mm)
8 Pin NSOIC
(JEDEC MS-012,
AA - VARIATION)
COMMON HEIGHT DIMENSION
SYMBOL
MIN NOM MAX
c
1.75
0.25
1.65
0.51
0.25
A
1.35
-
-
-
-
-
A1
A2
b
0.10
1.25
0.31
c
0.17
BASE METAL
D
E
E1
e
4.90 BSC
6.00 BSC
3.90 BSC
1.27 BSC
CONTACT AREA
L
0.40
-
1.27
L1
L2
1.04 REF
0.25 BSC
0º
5º
-
-
8º
Ø
Ø1
PACKAGE:
8 PIN NSOIC
15º
Date: 5/25/04
SPX431L Precision Adjustable Shunt Regulator
© Copyright 2004 Sipex Corporation5
8
PACKAGE: 3 PIN SOT-23
D
b
3
B
B
SEE VIEW C
VIEW A-A
E1
E
1
2
e
Gauge Plane
e1
Seating Plane
L
Ø
L1
VIEW C
3 PIN SOT-23
JEDEC TO-236
(AB) Variation
Dimensions in (mm)
MIN NOM MAX
A
A2
A
A
0.89
0.01
-
1.12
0.10
Seating Plane
A1
A2
b
-
C
A
A1
SIDE VIEW
0.88 0.95 1.02
0.30
0.08
-
0.50
0.20
c
-
D
2.80 2.90 3.04
0.95 BSC
b
e
WITH PLATING
1.90 BSC
e1
E
2.10
-
2.64
c
1.20 1.30 1.40
E1
L
0.40
0º
0.50
0.54 REF
-
0.60
8º
L1
Ø
BASE METAL SECTION B-B
3 PIN SOT-23
Date: 5/25/04
SPX431L Precision Adjustable Shunt Regulator
© Copyright 2004 Sipex Corporation5
9
PACKAGE: 3 PIN SOT-89
D
D1
3
Ø1.0
H
E
5º(2x)
L
1
2
e
e1
C
Dimensions in (mm)
MIN NOM MAX
3 PIN SOT-89
A
b
1.40 1.50
1.60
8º(2x)
0.36
0.42 0.48
0.80
0.41
-
1.20
L
0.47 0.53
b1
C
Ro.15
0.38
4.40
0.40 0.43
4.50 4.60
D
D1
1.40 1.60 1.75
3.94 4.25
H
E
e
-
b
b
b1
2.40 2.50 2.60
1.45 1.50 1.55
2.90 3.00 3.10
e1
3 PIN SOT-89
Date: 5/25/04
SPX431L Precision Adjustable Shunt Regulator
© Copyright 2004 Sipex Corporation5
10
PACKAGE: 3 PIN TO-92
L
e1
e
W
D
A
b
S1
DIMENSIONS
IN
INCHES
3 PIN TO-92
SYMBOL
MIN NOM MAX
R
.195
.020
.155
.105
A
b
E
e
e1
L
R
.170
.014
.130
.095
-
-
-
-
-
-
.045
.500
.085
.045
.055
.610
.095
.060
E
-
S1
W
-
-
-
-
.016
.175
4º
0.022
.195
6º
D
a
a(2x)
3 PIN TO-92
Date: 5/25/04
SPX431L Precision Adjustable Shunt Regulator
© Copyright 2004 Sipex Corporation5
11
ORDERING INFORMATION
ACCURACY OUTPUT VOLTAGE PACKAGES
PART NUMBER
SPX431LAM ........................ 0.5%..............2.503V ................................ 3-Pin SOT-23
SPX431LAM/TR .................. 0.5%..............2.503V ................................ 3-Pin SOT-23
SPX431LAM1 ...................... 0.5%..............2.503V ................................ 3-Pin SOT-89
SPX431LAM1/TR ................ 0.5%..............2.503V ................................ 3-Pin SOT-89
SPX431LAS ........................ 0.5%..............2.503V ..................................8-Pin nSOIC
SPX431LAS/TR................... 0.5%..............2.503V ..................................8-Pin nSOIC
SPX431LAN ........................ 0.5%..............2.503V .................................. 3-Pin TO-92
SPX431LAN/TR .................. 0.5%..............2.503V .................................. 3-Pin TO-92
SPX431LM .......................... 1.0%..............2.495V ................................ 3-Pin SOT-23
SPX431LM/TR .................... 1.0%..............2.495V ................................ 3-Pin SOT-23
SPX431LM1 ........................ 1.0%..............2.495V ................................ 3-Pin SOT-89
SPX431LM1/TR .................. 1.0%..............2.495V ................................ 3-Pin SOT-89
SPX431LS ........................... 1.0%..............2.495V ..................................8-Pin nSOIC
SPX431LS/TR ..................... 1.0%..............2.495V ..................................8-Pin nSOIC
SPX431LN........................... 1.0%..............2.495V .................................. 3-Pin TO-92
SPX431LN/TR ..................... 1.0%..............2.495V .................................. 3-Pin TO-92
SPX431LCM........................ 2.0%..............2.495V ................................ 3-Pin SOT-23
SPX431LCM/TR .................. 2.0%..............2.495V ................................ 3-Pin SOT-23
SPX431LCM1...................... 2.0%..............2.495V ................................ 3-Pin SOT-89
SPX431LCM1/TR................ 2.0%..............2.495V ................................ 3-Pin SOT-89
SPX431LCS ........................ 2.0%..............2.495V ..................................8-Pin nSOIC
SPX431LCS/TR .................. 2.0%..............2.495V ..................................8-Pin nSOIC
SPX431LCN ........................ 2.0%..............2.495V .................................. 3-Pin TO-92
SPX431LCN/TR .................. 2.0%..............2.495V .................................. 3-Pin TO-92
Available in lead free packaging. To order add “-L” suffix to part number.
Example: SPX431LM/TR = standard; SPX431LM-L/TR = lead free
/TR = Tape and Reel
Pack quantity is 2,000 for TO-92, 2,500 for SOT-89, SOT-23, and SOT-23.
Corporation
ANALOG EXCELLENCE
Sipex Corporation
Headquarters and
Sales Office
233 South Hillview Drive
Milpitas, CA 95035
TEL: (408) 934-7500
FAX: (408) 935-7600
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 herein; neither does it convey any license under its patent rights nor the rights of others.
Date: 5/25/04
SPX431L Precision Adjustable Shunt Regulator
© Copyright 2004 Sipex Corporation5
12
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