SPX431BM5-L/TR [SIPEX]
Three Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, PDSO5, ROHS COMPLIANT, MO-178AA, SOT-23, 5 PIN;
| 型号： | SPX431BM5-L/TR |
| 厂家： | 
SIPEX CORPORATION |
| 描述： | Three Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, PDSO5, ROHS COMPLIANT, MO-178AA, SOT-23, 5 PIN 稳压器 电源电路 参考电压源 光电二极管 输出元件 |
| 文件： | 总13页 (文件大小：1249K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SPX431A,B,C
Precision Adjustable Shunt Regulator
FEATURES
APPLICATIONS
• Trimmed Bandgap: 0.5%, 1% and 2%
• Wide Operating Current: 1mA to 150mA
• Extended Temperature Range:
0°C to 105°C
• Low Temperature Coefficient: 30 ppm/°C
• Improved Replacement in Performance
for TL43ꢀ
• Battery Operated Equipment
• Adjustable Supplies
• Switching Power Supplies
• Error Amplifiers
• Single Supply Amplifier
• Monitors/VCRs/TVs
• Personal Computers
• Low Cost Solution
• Available in Lead Free, RoHS compliant
packaging: SOIC, SOT-89, SOT-23-3,
SOT-23-5, and TO-92
DESCRIPTION
TheSPX43ꢀisathree-terminaladjustableshuntvoltageregulatorprovidingahighlyaccurate
bandgapreference.TheSPX431actsasanopen-looperroramplifierwitha2.5Vtemperature
compensation reference. The SPX431 has thermal stability, wide operating current of 150mA
and broad temperature range of 0°C to 150°C, making it suitable for a variety of applications
which require a low-cost, high performance solution. SPX431A tolerance of 0.5% is proven
to be sufficient to overcome all 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 36 volts with
two external resistors. The SPX431 is available in SOIC-8, SOT-23-3, SOT-23-5, SOT89,
and TO-92 packages.
TyPICAL APPLICATIONS CIRCUIT
Cathode (K)
Reference
(R)
+
-
2.5V
Anode (A)
Rev F: Nov 2ꢀ-06
SPX43ꢀA,B,C Precision Adjustable Shunt Regulator
© 2006 Sipex Corporation
ꢀ
ABSOLUTE mAXImUm RATINGS
Cathode-Anode Reverse Breakdown Vka ......................................37V
Anode-Cathode Forward Current, (<10ms) Iak ................................ꢀA
Operating Cathode Current Ika ..................................................150mA
Reference Input Current Iref ......................................................ꢀ0mA
Continuous Power Dissipation at 25°C Pd
SOIC-8 .....................................................................750mW
SOT-23-5 ................................................................200 mW
SOT-23-3 ................................................................4ꢀ7 mW
SOT-89..................................................................ꢀ000mW\
TO-92.......................................................................775mW
Junction Temperature Tj ...........................................................150 °C
Storage Temperature Tstg ...............................................-65 to 150 °C
NOTE: Stresses greater than those listed underABSOLUTE 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 speci-
fication is not implied. Exposure to absolute maximum rating conditions
for extended periods may affect reliability.
TyPICAL TꢀERmAL RESISTANCES
RECOmmENDED CONDITIONS
PACKAGE
ØJA
ØJC
TyPICAL DERATING
PARAmETER
SymBOL
RATING
UNIT
Cathode Voltage
VKA
VREF to 36
V
SOIC-8
TO-92
124.8°C/W 45°C/W
131.9°C/W 80°C/W
5.7 mW/°C
6.3 mW/°C
9.1 mW/°C
1.7 mW/°C
3.3 mW/°C
Cathode Current
IK
ꢀ0
mA
SOT-89 107.1°C/W 8°C/W
SOT-23-5 191°C/W 150°C/W
SOT-23-3 300°C/W 136°C/W
Typical deratings of the thermal resistances are given for ambient
temperature >25°.
ELECTRICAL CꢀARACTERISTICS
Electrical characteristics at 25°C Ik = 10mA Vk = Vref, unless otherwise specified.
Test
Conditions
Test
Circuit
Paraꢁeter
Sꢂꢁbol
SPX431A
Tꢂp
SPX431B
Tꢂp
SPX431C
Tꢂp max
Unit
min
max
min
max min
ꢀ
ꢀ
2.490
2.469
2.515 2.470
2.536 2.449
2.520
2.541
V
V
Reference Voltage
∆VREF with Temp.
VREF
TJ = 0°C to
105°C
2.503
2.495
2.445 2.495 2.545
mV/
°C
TC
ꢀ
0.07 0.20
0.07
0.20
0.07
0.20
Ratio of Change
in VREF to Cath-
ode Voltage
∆Vref
∆Vk
VREF to 10V
10V to 36V
-2.7
-2
-ꢀ.0
-0.4
-2.7
-2.0
-ꢀ.0
-0.4
-2.7
-2
-ꢀ.0
-0.4
mV/
V
2
2
2
ꢀ
0.3
4
0.3
4
0.3
4
Reference Input
Current
IREF
0.7
0.4
0.7
0.4
0.7
0.4
0.4
µA
µA
mA
nA
IREF Temp
Deviation
TJ = 0°C to
105°C
∆IREF
IK(MIN)
IK(OFF)
ꢀ.2
ꢀ
ꢀ.2
ꢀ
ꢀ.2
ꢀ
Min IK for
Regulation
0.4
0.4
Off State Leak-
age
VREF = 0V,
VKA = 36V
0.04
250
0.04
500
0.04 ꢀ000
3
ꢀ
Dynamic Output
Impedance
fZ = 1kHz
IK = 1 to 150mA
ZKA
0.15
0.5
0.15
0.5
0.15
0.5
Ω
Rev F: Nov 2ꢀ-06
SPX43ꢀA,B,C Precision Adjustable Shunt Regulator
© 2006 Sipex Corporation
2
CALCULATING AvERAGE TEmPERATURE COEFFICIENT (TC)
mV/°C
0
ppm/°C
0
%/°C
0
DVREF (mV)
DVREF
TC in mV/°C =
DTA
D
DVREF
x 100
-10
(
)
DVREF at 25°C
%
TC in
/°C =
5000
0.5
DTA
DVREF
DV at 25°C
6
x 10
(
)
REF
TC in ppm/°C =
0
15
30
45
60
75
90
105
DTA
Junction Temperature (°C)
0.07 mV/°C
0.003 %/°C
27 ppm/°C
Figure 1. Vref VS Temperature.
PACKAGE PINOUTS
SOT-89 (M1)
SPX431
8-Pin Surface Mount (S)
SOT-23-5 (M5)
TO-92 (N)
SOT-23-3 (M)
REF
ANODE
ANODE
1
2
3
8
7
6
CATHODE
ANODE
REF
1
2
3
5
4
3
ANODE
ANODE
N/C
SPX431
SPX431
SPX431
2
1
3
1
2
3
ANODE
N/C
2
1
REF
CATHODE
ANODE CATHODE
REF
N/C
CATHODE
N/C
ANODE
4
5
CATHODE
REF
Top View
Top View
Top View
Bottom View
Top View
TEST CIRCUITS
V
IN
VKA =
V
REF
VIN
VKA
VIN
VKA
IK (OFF)
R1
(VREF)
R2
IK
I
REF
IK
IREF
Test Circuit ꢀ.
Test Circuit for Vka = Vref
Test Circuit 2.
Test Circuit for Vka > Vref
Test Circuit 3.
Test Circuit for Ikoff
Rev F: Nov 2ꢀ-06
SPX43ꢀA,B,C Precision Adjustable Shunt Regulator
© 2006 Sipex Corporation
3
TyPICAL PERFORmANCE CꢀARACTERISTICS
2.53
150
125
100
75
V
KA = VREF
VKA = VREF
2.52
Temperature Range: 0°C to 105°C
IK = 10mA
2.51
2.50
2.49
2.48
2.47
2.46
2.45
50
25
0
-25
-50
-75
-100
-2
-1
0
1
2
3
-60
-30
0
30
60
90
120
V
KA - Cathode Voltage (V)
TA Ambient Temperature (°C)
High Current Operating Characteristics
Reference Voltage vs. Ambient Temperature
3.0
900
800
R1 = 10kΩ
R2 = ∞
IK = 10mA
V
KA = VREF
2.5
0° to 105°C
700
600
500
400
300
200
100
0
2.0
1.5
1.0
0.5
0
105°C
25°C
-0°C
-100
-200
-1.0
0
1.0
2.0
3.0
-60
-30
0
30
60
90
120
VKA Cathode Voltage (V)
T
A Ambient Temperature (°C)
Reference Input Current vs. Ambient Temperature
Low Current Operating Characteristics
0
70
60
50
40
30
20
-10
0°C
-20
-30
-40
25°C
75°C
125°C
I
KA = 10mA
V
KA = VREF
= 10mA
10
0
I
K
T
A = 25°C
-50
0
3
6
9
12 15 18 21 24 27 30
V
KA Cathode Voltage (V)
f Frequency (Hz)
Noise Voltage vs. Frequency
Reference Voltage Line Regulation vs, Cathode Volt-
age and Tambient
Rev F: Nov 2ꢀ-06
SPX43ꢀA,B,C Precision Adjustable Shunt Regulator
© 2006 Sipex Corporation
4
TyPICAL PERFORmANCE CꢀARACTERISTICS (continued)
0.150
0.125
0.100
0.075
0.050
0.025
0.0
REF LEVEL
60.000dB
0.0deg
/DIV
10.000dB
45.000deg
MARKER 19 422611.000Hz
MAG (A/R) -0.125dB
MARKER 19 422611.000Hz
V
KA = VREF
PHASE (A/R)
46.717deg
IK
= 1 to 100mA
60dB
50dB
40dB
30dB
20dB
10dB
0dB
215°
180°
135°
90°
f≤1kHz
PHASE
45°
0°
GAIN
-45°
-90°
-135°
-180°
-215°
-10dB
-20dB
-30dB
-40dB
-60
-30
0
30
60
90
120
T
A Free Air Temperature
10
100
1K
10K
100K
1M
10M
START 10.000Hz
STOP 50 000 000.000Hz
Small Signal Gain and Phase vs. Frequency; Ik =
ꢀ0mA, Ta = 25°C
Low Frequency Dynamic Output Impedance vs.
Tambient
V
OUT
V
IN
230Ω
15kΩ
I
K
9µF
V
OUT
V
IN
8.25kΩ
GND
Test Circuit for Gain and Phase Frequency Re-
Fz = 100kHz, Ik = ꢀ0mA, Ta = 25°C
sponse
100
VIN
A: VKA = VREF
B: VKA= 5V at IK=10mA
90
C: VKA=10V at I
K
=10mA
250Ω
80
70
60
50
40
30
20
10
0
D: VKA=15V at I
K
=10mA
VOUT
C
IK
STABLE
STABLE
A
fp = 100kHz
50Ω
TA = 25°C
B
D
10
0
10
1
10
2
10
3
10
4
10
5
10
6
107
C
L Load Capacitance (pF)
GND
Stability Boundry Conditions
Test Circuit for Pulse Response
Rev F: Nov 2ꢀ-06
SPX43ꢀA,B,C Precision Adjustable Shunt Regulator
© 2006 Sipex Corporation
5
TyPICAL PERFORmANCE CꢀARACTERISTICS (continued)
100
150 W
TA = 25 °C
IK
=
1 to 100mA
IK
10
1.0
R
CL
10kΩ
0.1
0.01
1K
10K
100K
1M
10M
f Frequency (Hz)
Dynamic Output Impedance Ta = 25°C,
Ik = ꢀ to ꢀ00mA
Test Circuit for Stability
100
R3
V
IN
V
OUT
10
R1
0.1%
V
KA = 36V
VREF = 0V
1
V
REF
SPX431A,B,C
0.1
R2
0.1%
0.01
-50
0
50
100
150
TA Ambient Temperature (°C)
Off-State Leakage
Shunt Regulator Vout = (1+R1/R2)Vref
V
OUT
VIN
I
SINK
Q1
R3
R2
R1
0.1%
Opto Isolator
R3 sets feedback gain,
C1 provides feedback
compensation
Isolated
Feedback
SPX431A,B,C
C1
+
C2
R1
0.1%
SPX431A,B,C
R2
0.1%
V
OUTRTN
Reference Amplifier for Isolated Feedback in Off-Line
DC-DC Converters
Constant Current, Sink, Isink = Vref/R1
Rev F: Nov 2ꢀ-06
SPX43ꢀA,B,C Precision Adjustable Shunt Regulator
© 2006 Sipex Corporation
6
TyPICAL PERFORmANCE CꢀARACTERISTICS (continued)
V
IN
V
OUT
V
IN
R5
R1
0.1%
R4
R3
R2
0.1%
Q1
R3
R1
0.1%
C1
SPX431A,B,C
VOU
SPX431A,B,C
R2
0.1%
Figure 24. High Current Shunt Regulator
Figure 23. Precision High Current Series Regulator
Vout = (1+R1/R2)Vref
Vout = (1+R1/R2)Vref
* Resistor values are chosen such that the ef-
fect to Iref is negligible.
VCC
R2
VOUT
R1
VIN
SPX431A,B,C
Figure 25. Single Supply Comparator with Tempera-
ture Compensated Threshold. Vin Threshold = 2.5V
Rev F: Nov 2ꢀ-06
SPX43ꢀA,B,C Precision Adjustable Shunt Regulator
© 2006 Sipex Corporation
7
PACKAGE: 8 PIN NSOIC
Rev F: Nov 2ꢀ-06
SPX43ꢀA,B,C Precision Adjustable Shunt Regulator
© 2006 Sipex Corporation
8
PACKAGE: 5 PIN SOT-23
Rev F: Nov 2ꢀ-06
SPX43ꢀA,B,C Precision Adjustable Shunt Regulator
© 2006 Sipex Corporation
9
PACKAGE: 3 PIN SOT-89
Rev F: Nov 2ꢀ-06
SPX43ꢀA,B,C Precision Adjustable Shunt Regulator
© 2006 Sipex Corporation
ꢀ0
PACKAGE: 3 PIN TO-92
Rev F: Nov 2ꢀ-06
SPX43ꢀA,B,C Precision Adjustable Shunt Regulator
© 2006 Sipex Corporation
ꢀꢀ
PACKAGE: 3 PIN SOT-23
Rev F: Nov 2ꢀ-06
SPX43ꢀA,B,C Precision Adjustable Shunt Regulator
© 2006 Sipex Corporation
ꢀ2
ORDERING INFORmATION
OUTPUT vOLTAGE PACKAGE
PART NUmBER
ACCURACy
SPX431AM5 .........................0.5% ..................... 2.503V ..........................5-Pin SOT-23
SPX431AM5/TR....................0.5% ..................... 2.503V ..........................5-Pin SOT-23
SPX43ꢀAMꢀ .........................0.5% ..................... 2.503V ..........................3-Pin SOT-89
SPX431AM1/TR....................0.5% ..................... 2.503V ..........................3-Pin SOT-89
SPX43ꢀAS............................0.5% ..................... 2.503V ............................. 8-Pin SOIC
SPX431AS/TR ......................0.5% ..................... 2.503V ............................. 8-Pin SOIC
SPX43ꢀAN............................0.5% ..................... 2.503V ............................3-Pin TO-92
SPX43ꢀAM ...........................0.5% ..................... 2.503V ..........................3-Pin SOT-23
SPX431AM/TR......................0.5% ..................... 2.503V ..........................3-Pin SOT-23
SPX431BM5 .........................1.0% ..................... 2.495V ..........................5-Pin SOT-23
SPX431BM5/TR....................1.0% ..................... 2.495V ..........................5-Pin SOT-23
SPX43ꢀBMꢀ .........................1.0% ..................... 2.495V ..........................3-Pin SOT-89
SPX431BM1/TR....................1.0% ..................... 2.495V ..........................3-Pin SOT-89
SPX43ꢀBS............................1.0% ..................... 2.495V ............................. 8-Pin SOIC
SPX431BS/TR ......................1.0% ..................... 2.495V ............................. 8-Pin SOIC
SPX43ꢀBN............................1.0% ..................... 2.495V ............................3-Pin TO-92
SPX43ꢀBM ...........................1.0% ..................... 2.495V ..........................3-Pin SOT-23
SPX431BM/TR......................1.0% ..................... 2.495V ..........................3-Pin SOT-23
SPX431CM5 .........................2.0% ..................... 2.495V ..........................5-Pin SOT-23
SPX431CM5/TR ...................2.0% ..................... 2.495V ..........................5-Pin SOT-23
SPX43ꢀCMꢀ .........................2.0% ..................... 2.495V ..........................3-Pin SOT-89
SPX431CM1/TR ...................2.0% ..................... 2.495V ..........................3-Pin SOT-89
SPX43ꢀCS............................2.0% ..................... 2.495V ............................. 8-Pin SOIC
SPX431CS/TR......................2.0% ..................... 2.495V ............................. 8-Pin SOIC
SPX43ꢀCN............................2.0% ..................... 2.495V ............................3-Pin TO-92
SPX43ꢀCM ...........................2.0% ..................... 2.495V ..........................3-Pin SOT-23
SPX431CM/TR .....................2.0% ..................... 2.495V ..........................3-Pin SOT-23
Available in lead free packaging. To order add “-L” suffix to part number.
Example: SPX431AM5/TR = standard; SPX431AM5-L/TR = lead free
/TR = Tape and Reel
TR pack quantity is 3000 for SOT-23-3, 2500 for SOT-23-5, SOT-89 and NSOIC, and 2000 for TO-92 in
ammo pack.
Sipex Corporation
ꢀeadquarters 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.
Rev F: Nov 2ꢀ-06
SPX43ꢀA,B,C Precision Adjustable Shunt Regulator
© 2006 Sipex Corporation
ꢀ3
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