SPX431LJCN-L/TR [SIPEX]
Low Voltage Adjustable Precision Shunt Regulator; 低电压可调精密并联稳压器
| 型号： | SPX431LJCN-L/TR |
| 厂家： | 
SIPEX CORPORATION |
| 描述： | Low Voltage Adjustable Precision Shunt Regulator |
| 文件： | 总12页 (文件大小：407K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Solved by
SPX431LJ
TM
Low Voltage Adjustable
Precision Shunt Regulator
Mꢀ Package
(SOT-ꢂꢁ)
Features
gꢀ Wide Programmable Precise Output Voltage from
1.24V to 18V
gꢀ High Stability under Capacitive Load
gꢀ Low Temperature Deviation: 3mV Typical
gꢀ Low Equivalent Full-Range Temperature Coefficient:
2
3
ꢀ
o
20PPM/ C Typical
gꢀ Low Dynamic Output Resistance: 0.05: Typical
gꢀ High Sink Current Capacity from 55PA to 100 mA
gꢀ Low Output Noise
REF ANODE CATHODE
o
gꢀ Wide Operating Range of -40 to 125 C
gꢀ Available in RoHS Compliant, Lead Free Packaging
Applications
gꢀ Graphics Card
gꢀ PC Motherboard
gꢀ Voltage Adapter
gꢀ Switching Power Supply
gꢀ Charger
General Description
The SPX431LJ series ICs are low voltage three-terminal adjustable regulators with guaranteed thermal sta-
bility over a full operation range. These ICs feature sharp turn-on characteristics, low temperature coefficient
and low output impedance, which make them ideal substitutes for Zener diodes in applications such as switch-
ing power supply, charger, motherboard and other adjustable regulators. The output voltage can be set to any
value between 1.24V and 18V with two external resistors. The SPX431LJ precision reference is offered in
two bandgap tolerances: 0.5% and 1%. These ICs are available in TO-92 and SOT-89 packages
.
TO-ꢁ2
SOT-ꢂꢁ
Figure ꢀ. Package Types of SPX43ꢀLJ
Date: 7/26/06 Rev C
SPX43ꢀLJ Low Voltage Adjustable Precision Shunt Regulator
© 2006 Sipex Corporation
ꢀ
Pin Configuration
Mꢀ Package
(SOT-ꢂꢁ)
N Package
(TO-ꢁ2)
3
2
1
CATHODE
ANODE
2
3
ꢀ
REF
REF ANODE CATHODE
Figure 2. Pin Configuration of SPX43ꢀLJ (Top View)
Functional Block Diagram
CATHODE
+
-
REF
VREF
ANODE
Figure 3. Functional Block Diagram of SPX43ꢀLJ
Date: 7/26/06 Rev C
SPX43ꢀLJ Low Voltage Adjustable Precision Shunt Regulator
© 2006 Sipex Corporation
2
Absolute Maximum Ratings (Note 1)
Parameter
Symbol
Value
20
Unit
V
V
Cathode Voltage
KA
I
Cathode Current Range (Continuous)
Reference Input Current Range
-100 to 100
10
mA
mA
KA
I
REF
TO-92, SOT-89
Package
P
D
Power Dissipation
mW
770
o
T
Storage Temperature Range
-65 to 150
TO-92
C
STG
130
100
o
Q
SOT-89
Package Thermal Impedance
C/W
JA
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the
device. These are stress ratings only , and functional operation of the device at these or any other conditions
beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maxi-
mum Ratings" for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter
Symbol
Min
Max
18
Unit
V
V
V
REF
Cathode Voltage
KA
I
Cathode Current
0.1
100
125
mA
KA
o
Operating Ambient Temperature Range
-40
C
Electrical Characteristics
o
(Typical and limits apply for T =25 C unless otherwise noted.)
J
Test
Circuit
Parameter
Symbol
Conditions
I =10mA
REF, KA
Min
Typ
Max
Unit
0.5%
1%
1.234
1.228
1.240
1.240
2
1.246
1.252
10
V
V
=V
Reference Voltage
4
V
REF
KA
o
o
0 C to 70 C
V
I
=V
Deviation of Reference Voltage
Over-Temperature
4
KA
REF
'V
mV
REF
=10mA
o
o
KA
3
10
-40 C to 85 C
to 16V
'V
I
KA
=10mA,
Ratio of Change in V
to the
-0.5
-1.5
REF
REF
5
5
mV/V
'V
'V :V
KA REF
Change in Cathode Voltage
KA
I
I
=10mA, R1=10K:, R2=f
Reference Input Current
0.15
0.4
PꢀA
PꢀA
PꢀA
REF
KA
I
=10mA, R1=10K:, R2=f
KA
Deviation of Reference Current
Over Full Temperature Range
'I
5
4
6
4
0.1
55
0.4
80
REF
o
T =-40 to 85 C
A
I
Minimum Cathode Current for
Regulation
KA
V
=V
REF
KA
(MIN)
V
V
V
=0, V =18V
KA
0.04
0.01
0.10
0.05
REF
I
PꢀA
KA
Off-State Cathode Current
Dynamic Impedance
(OFF)
=6, V =0
KA
KA
REF
=V , I =1 to 100mA
REF KA
Z
0.05
0.15
:
KA
f dꢀ1.0kHz
Date: 7/26/06 Rev C
SPX43ꢀLJ Low Voltage Adjustable Precision Shunt Regulator
© 2006 Sipex Corporation
3
Electrical Characteristics (Continued)
Rꢀ
VKA
VIN
IKA
VREF
Figure 4. Test Circuit 4 for VKA=VREF
R3
VIN
VKA
IKA
Rꢀ
IREF
VKA=VREF(ꢀ+Rꢀ/R2)+ IREF . Rꢀ
R2
VREF
Figure ꢃ. Test Circuit ꢃ for VKA>VREF
VKA
VIN
IOFF
Figure 6. Test Circuit 6 for IOFF
Date: 7/26/06 Rev C
SPX43ꢀLJ Low Voltage Adjustable Precision Shunt Regulator
© 2006 Sipex Corporation
4
Typical Performance Characteristics
ꢀ.242
0.ꢀꢂ
0.ꢀ7
0.ꢀ6
0.ꢀꢃ
0.ꢀ4
0.ꢀ3
0.ꢀ2
VKA=VREF
IKA=ꢀ0mA
R2=f
ꢀ.24ꢀ
I
KA=ꢀ0mA
Rꢀ=ꢀ0K:
ꢀ.240
ꢀ.23ꢁ
ꢀ.23ꢂ
ꢀ.237
ꢀ.236
ꢀ.23ꢃ
-ꢃ0
-2ꢃ
0
2ꢃ
ꢃ0
7ꢃ
ꢀ00
ꢀ2ꢃ
-ꢃ0
-2ꢃ
0
2ꢃ
ꢃ0
7ꢃ
ꢀ00
ꢀ2ꢃ
ꢀꢃ0
Ambient Temperature (oC)
Ambient Temperature (oC)
Figure 7. Reference Voltage vs. Ambient Temperature
Figure ꢂ. Reference Current vs. Ambient Temperature
400
ꢀꢃ0
VKA=VREF
TA=2ꢃoC
VKA=VREF
TA=2ꢃoC
300
ꢀ00
200
ꢃ0
0
ꢀ00
0
-ꢀ00
-200
-300
-ꢃ0
-ꢀ00
-ꢀꢃ0
-ꢀ
0
ꢀ
-ꢀ
0
ꢀ
Cathode Voltage (V)
Cathode Voltage (V)
Figure ꢁ. Cathode Current vs. Cathode Voltage
Figure ꢀ0. Current vs. Cathode Voltage
Date: 7/26/06 Rev C
SPX43ꢀLJ Low Voltage Adjustable Precision Shunt Regulator
© 2006 Sipex Corporation
ꢃ
Typical Performance Characteristics (Continued)
Output
I KA
60
6.ꢂK
4.3K
IKA=ꢀ0mA
360
TA=2ꢃoC
ꢃ0
ꢀ0uF
40
30
20
ꢀ0
0
ꢃV
ꢃ00K
ꢀ00
ꢀk
ꢀ0k
ꢀ00k
GND
Small Signal Frequency (HZ)
Figure ꢀꢀ. Small Signal Voltage Gain vs. Frequency
ꢀ0
Output
ꢀ00:
ꢀ
IKA = ꢀmA to ꢀ00mA
IKA
ꢃ0:
0.ꢀ
0.0ꢀ
ꢀk
GND
ꢀ0k
ꢀ00k
ꢀM
Frequency (Hz)
Figure ꢀ2. Dynamic Impedance vs. Frequency
Date: 7/26/06 Rev C
SPX43ꢀLJ Low Voltage Adjustable Precision Shunt Regulator
© 2006 Sipex Corporation
6
Typical Performance Characteristics (Continued)
3
Input
Output
Rꢀ
2
ꢀ.ꢂK:
Pulse
Generator
f=ꢀ00KHz
R2
ꢃ0:
ꢀ
Output
GND
0
-ꢀ
0
ꢀ
2
3
4
ꢃ
6
Time (PS)
Figure ꢀ3. Pulse Response of Input and Output Voltage
-0.30
IKA=ꢀ0mA
-0.3ꢃ
-0.40
-0.4ꢃ
-0.ꢃ0
-0.ꢃꢃ
'VKA=VREF to ꢀ6V.
-40
-20
0
20
40
60
ꢂ0
ꢀ00
ꢀ20
Ambient Temperature (oC)
Figure ꢀ4. Ratio of Delta Reference Voltage to the Ratio of
Cathode Voltage vs. Ambient Temperature
Date: 7/26/06 Rev C
SPX43ꢀLJ Low Voltage Adjustable Precision Shunt Regulator
© 2006 Sipex Corporation
7
Typical ApplicationS
R3
VOUT
VIN
Rꢀ
VO=(ꢀ+Rꢀ/R2) VREF
VREF
R2
SPX43ꢀLJ
Figure ꢀꢃ. Shunt Regulator
VIN
VOUT
Rꢀ
R4
R2
VO=(ꢀ+R2/R3) VREF
VREF
R3
SPX43ꢀLJ
Figure ꢀ6. High Current Shunt Regulator
R2
VIN
IOUT
IOUT = VREF/R2 + IKA
Rꢀ
SPX43ꢀLJ
Figureꢀ7. Current Source or Current Limit
Date: 7/26/06 Rev C
SPX43ꢀLJ Low Voltage Adjustable Precision Shunt Regulator
© 2006 Sipex Corporation
ꢂ
Typical Application (Continued)
V
SPXꢀꢀꢀ7
2.ꢃV/ꢀA
IN
Rꢀ
ꢂ.2K
R2
2ꢃ0
SPX43ꢀLJ
R3
2ꢃ0
Figureꢀꢂ. Precision 2.ꢃ-V ꢀA Regulator
R3
R4
Cꢀ
Rꢀ
VOUT
R2 6ꢂ0
Rꢃ
C2
U2
Qꢀ
3
4
COMP
2
SPX43ꢀLJ
PWM Controller
VFB
PSꢃ2ꢀ
Figure ꢀꢁ. PWM Converter with Reference
Date: 7/26/06 Rev C
SPX43ꢀLJ Low Voltage Adjustable Precision Shunt Regulator
© 2006 Sipex Corporation
ꢁ
Package: 3 Pin TO-92
Mechanical Dimensions
TO-92
Unit: mm (inch)
ꢈꢁꢈꢃꢃꢄꢃꢁꢃꢂꢉꢇ
ꢈꢁꢂꢃꢃꢄꢃꢁꢃꢋꢋꢇ
ꢉꢁꢂꢉꢃꢄꢃꢁꢈꢉꢋꢇ
0,1
ꢃꢁꢉꢆꢃꢄꢃꢁꢃꢈꢂꢇ
ꢃꢁꢋꢈꢃꢄꢃꢁꢃꢀꢃꢇ
ꢃꢁꢃꢃꢃꢄꢃꢁꢃꢃꢃꢇ
ꢃꢁꢉꢊꢃꢄꢃꢁꢃꢈꢋꢇ
ꢈꢁꢆꢃꢃꢄꢃꢁꢃꢆꢉꢇ
0$;
ꢂꢁꢂꢃꢃꢄꢃꢁꢈꢌꢉꢇ
ꢂꢁꢌꢃꢃꢄꢃꢁꢈꢊꢋꢇ
ꢃꢁꢉꢊꢃꢄꢃꢁꢃꢈꢋꢇ
ꢃꢁꢋꢋꢃꢄꢃꢁꢃꢀꢀꢇ
ꢈꢁꢀꢌꢃꢄꢃꢁꢃꢋꢃꢇ
7<3
ꢀꢁꢂꢂꢃꢄꢃꢁꢃꢅꢆꢇ
ꢀꢁꢆꢂꢃꢄꢃꢁꢈꢃꢂꢇ
Date: 7/26/06 Rev C
SPX43ꢀLJ Low Voltage Adjustable Precision Shunt Regulator
© 2006 Sipex Corporation
ꢀ0
Package: 3 Pin SOT-89
Mechanical Dimensions (Continued)
SOT-89
Unit: mm(inch)
4.400(0.ꢀ73)
4.600(0.ꢀꢂꢀ)
ꢀ.400(0.0ꢃꢃ)
ꢀ.600(0.063)
ꢀ.630(0.064)
ꢀ.ꢂ30(0.072)
0.000(0.000)
0.076(0.003)
ꢀ.400(0.0ꢃꢃ)*
R0.200(0.00ꢂ)
2.300(0.0ꢁꢀ)
2.600(0.ꢀ02)
3e
0.360(0.0ꢀ4)
0.4ꢂ0(0.0ꢀꢁ)
0.440(0.0ꢀ7)
0.360(0.0ꢀ4)
0.440(0.0ꢀ7)
0.360(0.0ꢀ4)
0.4ꢂ0(0.0ꢀꢁ)
0.ꢃ60(0.022)
3.000(0.ꢀꢀꢂ)
e
0
ꢀ
R0.ꢀꢃ0(0.006)
Date: 7/26/06 Rev C
SPX43ꢀLJ Low Voltage Adjustable Precision Shunt Regulator
© 2006 Sipex Corporation
ꢀꢀ
ORDeRing inFORMaTiOn
-
SPX431LJ
/TR: Tape and Reel
Blank: Tube or Bulk
: Lead Free and
Part Number
-L
RoHS Compliant
Bandgap Tolerance
A: 0.5%
Package
N: TO-92
B
lank: 1.0
%
M
1
: SOT-89
C
: 2.0
%
Temperature
Range
Voltage Output
Tolerance Voltage
Pin
Count
Part Number
Package
Packing Type
SPX43ꢀLJAMꢀ-L/TR -40ºC to +ꢀ2ꢃºC
SPX43ꢀLJMꢀ-L/TR -40ºC to +ꢀ2ꢃºC
SPX43ꢀLJCMꢀ-L/TR -40ºC to +ꢀ2ꢃºC
SPX43ꢀLJAN-L/TR -40ºC to +ꢀ2ꢃºC
0.ꢃ%
ꢀ.0%
2.0%
0.ꢃ%
ꢀ.0%
2.0%
Adj
Adj
Adj
Adj
Adj
Adj
SOT-ꢂꢁ
SOT-ꢂꢁ
SOT-ꢂꢁ
TO-ꢁ2
3
3
3
3
3
3
ꢀ,000/TR
ꢀ,000/TR
ꢀ,000/TR
2,000/AMMO
2,000/AMMO
2,000/AMMO
SPX43ꢀLJN-L/TR
-40ºC to +ꢀ2ꢃºC
TO-ꢁ2
SPX43ꢀLJCN-L/TR -40ºC to +ꢀ2ꢃºC
TO-ꢁ2
Solved by
Sꢀpꢁx corporꢂtꢀoꢃ
Hꢁꢂdquꢂrtꢁrs ꢂꢃd
TM
Sales Office
233 South Hillview Drive
Milpitas, CA ꢁꢃ03ꢃ
TEL: (40ꢂ) ꢁ34-7ꢃ00
FAX: (40ꢂ) ꢁ3ꢃ-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: 7/26/06 Rev C
SPX43ꢀLJ Low Voltage Adjustable Precision Shunt Regulator
© 2006 Sipex Corporation
ꢀ2
相关型号：
SPX431LJM1-L/TR
Low Voltage Adjustable Precision Shunt RegulatorWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
SIPEX
SPX431LJN-L/TR
Low Voltage Adjustable Precision Shunt RegulatorWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
SIPEX
SPX431LM
Low Voltage Precision Adjustable Shunt RegulatorWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
SIPEX
SPX431LM-L
Voltage Reference, BIPolar,Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
EXAR
SPX431LM/TR
Precision Adjustable Shunt RegulatorWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
SIPEX
SPX431LM/TR
Voltage Reference, BIPolarWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
EXAR
SPX431LM1
Low Voltage Precision Adjustable Shunt RegulatorWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
SIPEX
SPX431LM1
Voltage Reference, BIPolarWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
EXAR
SPX431LM1-L
Two Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, PSSO3, SOT-89, 3 PINWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
SIPEX
SPX431LM1-L/TR
Two Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, PSSO3, SOT-89, 3 PINWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
SIPEX
SPX431LM1-L/TR
Two Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, PSSO3, SOT-89, 3 PINWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
EXAR
SPX431LM1/TR
Precision Adjustable Shunt RegulatorWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
SIPEX
©2020 ICPDF网 联系我们和版权申明