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參數資料
| 型號： | TLV431ALPRP |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 基準電壓源/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： | 1/34頁 |
| 文件大小： | 646K |
| 代理商： | TLV431ALPRP |
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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PDF資料 |
PDF描述 |
|---|---|
| TLV431BLP | Low Voltage Precision Adjustable Shunt Regulator |
| TLV431BLPRA | Low Voltage Precision Adjustable Shunt Regulator |
| TLV431BLPRAG | Low Voltage Precision Adjustable Shunt Regulator |
| TLV431BLPRE | Low Voltage Precision Adjustable Shunt Regulator |
| TLV431BLPRM | Low Voltage Precision Adjustable Shunt Regulator |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TLV431ALPRPG | 功能描述:基準電壓& 基準電流 1.24-16V ADJ 1-100mA RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構:Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數（典型值）:100 PPM / C 串聯 VREF - 輸入電壓（最大值）: 串聯 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 |
| TLV431A-Q1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS |
| TLV431AQDBVRQ1 | 功能描述:基準電壓& 基準電流 Auto Cat Lo Vltg Adj Prec Shunt Reg RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構:Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數（典型值）:100 PPM / C 串聯 VREF - 輸入電壓（最大值）: 串聯 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 |
| TLV431AQPK | 功能描述:基準電壓& 基準電流 Lo Vtg Adj Precision Shunt Regulator RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構:Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數（典型值）:100 PPM / C 串聯 VREF - 輸入電壓（最大值）: 串聯 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 |
| TLV431AQPKG3 | 功能描述:基準電壓& 基準電流 Lo Vtg Adj Precision Shunt Regulator RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構:Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數（典型值）:100 PPM / C 串聯 VREF - 輸入電壓（最大值）: 串聯 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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