参数资料
型号: TLV431AQDBVRQ1
厂商: TEXAS INSTRUMENTS INC
元件分类: 基准电压源/电流源
英文描述: THREE TERM VOLTAGE REFERENCE, PDSO5
封装: GREEN, PLASTIC, SOT-23, 5 PIN
文件页数: 1/19页
文件大小: 395K
代理商: TLV431AQDBVRQ1
TLV431AQ1, TLV431BQ1
LOW VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS
SLVS905 DECEMBER 2008
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Qualified for Automotive Applications
D Low-Voltage Operation: VREF = 1.24 V
D Adjustable Output Voltage, VO = VREF to 6 V
D Reference Voltage Tolerances at 255C
0.5% for TLV431B
1% for TLV431A
D Typical Temperature Drift: 11 mV
D Low Operational Cathode Current :80 A Typ
D 0.25- Typical Output Impedance
D See TLVH431 and TLVH432 for
Wider VKA (1.24 V to 18 V) and IK (80 mA)
Additional SOT-89 Package
Multiple Pinouts for SOT-23-3 and SOT-89
Packages
NC No internal connection
* For TLV431A: NC No internal connection
* For TLV431B: Pin 2 is attached to Substrate and must
be connected to ANODE or left open.
DBV (SOT-23-5) PACKAGE
(TOP VIEW)
1
2
3
5
4
NC
*
CATHODE
ANODE
REF
DBZ (SOT-23-3) PACKAGE
(TOP VIEW)
1
2
3
REF
CATHODE
ANODE
description/ordering information
The TLV431 is a low-voltage 3-terminal adjustable voltage reference with specified thermal stability over
applicable industrial and commercial temperature ranges. Output voltage can be set to any value between VREF
(1.24 V) and 6 V with two external resistors (see Figure 2). These devices operate from a lower voltage (1.24 V)
than the widely used TL431 and TL1431 shunt-regulator references.
When used with an optocoupler, the TLV431 is an ideal voltage reference in isolated feedback circuits for 3-V
to 3.3-V switching-mode power supplies. These devices have a typical output impedance of 0.25
. Active
output circuitry provides a very sharp turn-on characteristic, making them excellent replacements for
low-voltage Zener diodes in many applications, including on-board regulation and adjustable power supplies.
ORDERING INFORMATION
TJ
25
5C VREF
TOLERANCE
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
0.5%
SOT-23-5 (DBV)
Reel of 3000
TLV431BQDBVRQ1
VOMQ
40
°C to 125°C
0.5%
SOT-23-3 (DBZ)
Reel of 3000
TLV431BQDBZRQ1
VOQQ
40 C to 125 C
1%
SOT-23-5 (DBV)
Reel of 3000
TLV431AQDBVRQ1
VONQ
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see
the TI web site at http://www.ti.com.
Package drawings, thermal data, and symbolization are available at http://www.ti.com/packaging.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright
2008, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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相关代理商/技术参数
参数描述
TLV431AQPK 功能描述:基准电压& 基准电流 Lo Vtg Adj Precision Shunt Regulator RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数(典型值):100 PPM / C 串联 VREF - 输入电压(最大值): 串联 VREF - 输入电压(最小值): 分流电流(最大值):60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel
TLV431AQPKG3 功能描述:基准电压& 基准电流 Lo Vtg Adj Precision Shunt Regulator RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数(典型值):100 PPM / C 串联 VREF - 输入电压(最大值): 串联 VREF - 输入电压(最小值): 分流电流(最大值):60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel
TLV431ASN1T1 功能描述:基准电压& 基准电流 1.24-16V ADJ 1-100mA RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数(典型值):100 PPM / C 串联 VREF - 输入电压(最大值): 串联 VREF - 输入电压(最小值): 分流电流(最大值):60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel
TLV431ASN1T1G 功能描述:基准电压& 基准电流 1.24-16V ADJ 1-100mA RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数(典型值):100 PPM / C 串联 VREF - 输入电压(最大值): 串联 VREF - 输入电压(最小值): 分流电流(最大值):60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel
TLV431ASN1T1G-CUT TAPE 制造商:ON 功能描述:TLV Series 1.24 V Low Voltage Precision Adjustable Shunt Regulator - SOT-23-3