SP431 [SYNC-POWER]
High Voltage Adjustable Precision Shunt Regulators; 高电压可调节精密并联稳压器
| 型号： | SP431 |
| 厂家： | 
SYNC POWER CROP. |
| 描述： | High Voltage Adjustable Precision Shunt Regulators |
| 文件： | 总12页 (文件大小：282K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SP431
High Voltage Adjustable Precision Shunt Regulators
DESCRIPTION
APPLICATIONS
z
z
z
z
z
z
z
Battery Power Equipment
The SP431 is high-voltage three-terminal adjustable
voltage references, with specified thermal stability
over applicable industrial and commercial temperature
ranges. Output voltage can be set to any value between
VREF (2.5V) and 36V with two external resistors.
These devices have a typical output impedance of
0.25Ω. Active output circuitry provides a very sharp
turn-on characteristic, making the SP431 excellent
replacements for low-voltage Zener diodes in many
applications, including onboard regulation and
adjustable power supplies.
Linear Regulators
Switch Power Supply
Cellular Phone
Digital Cameras
Computer Disk Drivers
Instrumentation
FEATURES
PIN CONFIGURATION ( TO-92 )
Low Output Noise
Adjustable Output Voltage, VO = Vref to 36 V
Low Operational Cathode Current
0.2Ω Typical Output Impedance
PART MARKING ( TO-92 )
2007/07/15 Ver.3
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SP431
High Voltage Adjustable Precision Shunt Regulators
PIN DESCRIPTION
Pin
Symbol
Description
REF
1
2
3
R
C
A
CATHODE
ANODE
ORDERING INFORMATION
Part Number
SP431AT92AG
SP431BT92AG
Voltage Tolerance
Package
TO-92
TO-92
Part Marking
SP431A
1.0%
0.5%
SP431B
※ Week Code : A ~ Z ( 1 ~ 26 ) ; a ~ z ( 27 ~ 52 )
※ SP431AT92AG / SP431BT92AG : Tape Ammo ; Pb-Free
BLOCK DIAGRAM
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SP431
High Voltage Adjustable Precision Shunt Regulators
ABSOULTE MAXIMUM RATINGS
(TA=25℃ Unless otherwise specified)
Parameter
Symbol
Value
Unit
Cathode Voltage
VZ
37
V
Continuous Cathode Current
Reference Current
IZ
150
10
mA
mA
IREF
Operation Junction Temperature
Range
Storage Temperature Range
Lead Temperature Range
(Soldering 10sec.)
Thermal Resistance
TJ
-40 ~ +150
-65 ~ +150
260
℃
℃
TSTG
TSOL
ӨJA
℃
140
℃/W
The IC has a protection circuit against static electricity. Do not apply high static electricity or high voltage that
exceeds the performance of the protection circuit to the IC.
ELECTRICAL CHARACTERISTICS
(TA=25℃ , Unless otherwise specified)
SP431XT92AG
Parameter
Symbol
Conditions
SP431AT92AG
Min. Typ. Max. Unit
2.475
2.487
2.5
2.5
10
2.525
2.513
25
VZ = VREF
IZ = 10mA
Reference Voltage
VREF
V
SP431BT92AG
TA=-40℃~+80℃
VZ = VREF , IZ = 10mA
VREF Temp Deviation
VDEV
mV
Ratio of change in VREF to change ΔVREF / IZ = 10mA
-1.4
2
-2.7 mV / V
in Cathode voltage
ΔVZ
ΔVZ = 36V ~ VREF
Reference Input
Current
R1=10KΩ , R2 = ∞ ,
IZ = 10mA
IREF
4
uA
uA
TA=-40℃~+80℃
IREF Temp Deviation
IREF(DEV) R1=10KΩ , R2 = ∞ ,
0.8
2.5
IZ = 10mA
Off state Cathode Current
Dynamic output impedance
Minimum Operation Current
IZ(OFF) VREF = 0V VZ
=
36V
0.1
0.25
0.4
0.5
0.5
0.7
uA
Ω
f < 1KHZ , VZ = VREF
IZ = 1mA ~ 100mA
RZ
IZ(MIN) VZ = VREF
mA
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SP431
High Voltage Adjustable Precision Shunt Regulators
TESTING CIRCUIT
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SP431
High Voltage Adjustable Precision Shunt Regulators
APPLICATION CIRCUIT
Shunt Regulator
Single-Supply Comparator With Temperature-Compensated Threshold
Precision High-Current Series Regulator
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SP431
High Voltage Adjustable Precision Shunt Regulators
APPLICATION CIRCUIT
Output Control of a Three-Terminal Fixed Regulator
High-Current Shunt Regulator
Precision 5-V 1.5-A Regulator
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SP431
High Voltage Adjustable Precision Shunt Regulators
APPLICATION CIRCUIT
PWM Converter With Reference
Voltage Monitor
Delay Timer
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SP431
High Voltage Adjustable Precision Shunt Regulators
PERFORMANCE CHARACTERISTICS
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SP431
High Voltage Adjustable Precision Shunt Regulators
PERFORMANCE CHARACTERISTICS
2007/07/15 Ver.3
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SP431
High Voltage Adjustable Precision Shunt Regulators
PERFORMANCE CHARACTERISTICS
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SP431
High Voltage Adjustable Precision Shunt Regulators
TO-92 PACKAGE OUTLINE
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SP431
High Voltage Adjustable Precision Shunt Regulators
Information provided is alleged to be exact and consistent. SYNC Power Corporation presumes no responsibility for the
penalties of use of such information or for any violation of patents or other rights of third parties which may result from its use.
No license is granted by allegation or otherwise under any patent or patent rights of SYNC Power Corporation. Conditions
mentioned in this publication are subject to change without notice. This publication surpasses and replaces all information
previously supplied. SYNC Power Corporation products are not authorized for use as critical components in life support
devices or systems without express written approval of SYNC Power Corporation.
©The SYNC Power logo is a registered trademark of SYNC Power Corporation
©2004 SYNC Power Corporation – Printed in Taiwan – All Rights Reserved
SYNC Power Corporation
9F-5, No.3-2, Park Street
NanKang District (NKSP), Taipei, Taiwan 115
Phone: 886-2-2655-8178
Fax: 886-2-2655-8468
©http://www.syncpower.com
2007/07/15 Ver.3
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