參數(shù)資料
型號(hào)： TLV431BQDBVRQ1
廠商： TEXAS INSTRUMENTS INC
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： THREE TERM VOLTAGE REFERENCE, PDSO5
封裝： GREEN, PLASTIC, SOT-23, 5 PIN
文件頁(yè)數(shù)： 1/19頁(yè)
文件大?。?/td> 395K
代理商： TLV431BQDBVRQ1
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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLV431BQDBVT 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 Lo-Vtg Adj Precision Shunt Regulator RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel
TLV431BQDBVTE4 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 Lo-Vtg Adj Precision Shunt Regulator RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel
TLV431BQDBVTG4 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 Lo Vltg Adj Prec Shunt Reg RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel
TLV431BQDBZR 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 Lo-Vtg Adj Precision Shunt Regulator RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel
TLV431BQDBZRG4 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 Lo-Vtg Adj Precision Shunt Regulator RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel
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