參數(shù)資料
型號(hào): TLV431ALPRE
廠商: ON SEMICONDUCTOR
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Low Voltage Precision Adjustable Shunt Regulator
中文描述: 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PBCY3
封裝: PLASTIC, TO-92, 3 PIN
文件頁數(shù): 1/34頁
文件大?。?/td> 646K
代理商: TLV431ALPRE
SLVS139R JULY 1996 REVISED SEPTEMBER 2005
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Low-Voltage Operation . . . V
REF
= 1.24 V
Adjustable Output Voltage, V
O
= V
REF
to 6 V
Reference Voltage Tolerances at 25 C
0.5% for TLV431B
1% for TLV431A
1.5% for TLV431
Typical Temperature Drift
4 mV (0 C to 70 C)
6 mV (–40 C to 85 C)
11 mV (–40 C to 125 C)
Low Operational Cathode Current . . .
80
μ
A Typ
0.25-
Typical Output Impedance
Ultra-Small SC-70 Package Offers 40%
Smaller Footprint Than SOT-23-3
See TLVH431 and TLVH432 for
Wider V
KA
(1.24 V to 18 V) and I
K
(80 mA)
Additional SOT-89 Package
Multiple Pinouts for SOT-23-3 and SOT-89
Packages
REF
ANODE
CATHODE
LP (TO-92/TO-r
(TOP VIEW)
NC No internal connection
* For TLV431, TLV431A: NC No internal connection
* For TLV431B: Leave open or connect to ANODE
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
D (SOIC) PACKAGE
(TOP VIEW)
1
2
3
4
8
7
6
5
REF
ANODE
ANODE
NC
CATHODE
ANODE
ANODE
NC
DCK (SC-70) PACKAGE
(TOP VIEW)
1
2
3
6
5
4
CATHODE
NC
REF
ANODE
NC
NC
NC - No internal connection
PK (SOT-89) PACKAGE
(TOP VIEW)
1
3
2
REF
CATHODE
ANODE
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 V
REF
(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.
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
2005, Texas Instruments Incorporated
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相關(guān)PDF資料
PDF描述
TLV431ALPREG Low Voltage Precision Adjustable Shunt Regulator
TLV431ALPRM Low Voltage Precision Adjustable Shunt Regulator
TLV431ALPRP Low Voltage Precision Adjustable Shunt Regulator
TLV431BLP Low Voltage Precision Adjustable Shunt Regulator
TLV431BLPRA Low Voltage Precision Adjustable Shunt Regulator
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLV431ALPREG 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 1.24-16V ADJ 1-100mA 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
TLV431ALPRM 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 1.24-16V ADJ 1-100mA 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
TLV431ALPRMG 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 1.24-16V ADJ 1-100mA 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
TLV431ALPRP 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 1.24-16V ADJ 1-100mA 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
TLV431ALPRPG 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 1.24-16V ADJ 1-100mA 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