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TLV431CPK

更新时间： 2024-11-26 09:55:27
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
25页 507K
描述
IC,VOLT REGULATOR,ADJUSTABLE,+1.24 TO +6V,BIPOLAR,TO-243,3PIN,PLASTIC

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TLV431CPK 数据手册

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SLVS139J − JULY 1996 − REVISED AUGUST 2004  
D
D
Low-Voltage Operation . . . Down to 1.24 V  
D
D
D
D
Adjustable Output Voltage, V = V  
to 6 V  
O
REF  
Reference Voltage Tolerances are:  
0.5% for TLV431B,  
1% for TLV431A, and  
1.5% for TLV431  
Low Operational Cathode Current . . . 80 µA Typ  
0.25 Ω Typical Output Impedance  
−405C to 1255C Specifications  
DBZ (SOT23-3) PACKAGE  
D (SOIC) PACKAGE  
(TOP VIEW)  
DBV (SOT23-5) PACKAGE  
(TOP VIEW)  
(TOP VIEW)  
REF  
1
2
3
4
8
7
6
5
CATHODE  
REF  
NC  
NC  
CATHODE  
ANODE  
REF  
1
2
1
2
3
5
4
ANODE  
ANODE  
NC  
ANODE  
ANODE  
NC  
ANODE  
3
CATHODE  
NC - No internal connection  
PK (SOT-89) PACKAGE  
(TOP VIEW)  
LP (TO-92/T0-226) PACKAGE  
(TOP VIEW)  
DCK (SC-70) PACKAGE  
(TOP VIEW)  
CATHODE  
ANODE  
REF  
CATHODE  
NC  
ANODE  
NC  
NC  
1
2
3
6
5
4
CATHODE  
ANODE  
REF  
REF  
description/ordering information  
The TLV431, TLV431A, and TLV431B are low-voltage 3-terminal adjustable voltage references with specified  
thermal stability over applicable industrial and commercial temperature ranges. Output voltage can be set to  
any value between V  
(1.24 V) and 6 V with two external resistors (see Figure 2). These devices operate from  
REF  
a lower voltage (1.24 V) than the widely used TL431 and TL1431 shunt-regulator references.  
When used with an optocoupler, the TLV431, TLV431A, and TLV431B are ideal voltage references 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 Ω. Active output circuitry provides a very sharp turn-on characteristic, making the TLV431,  
TLV431A, and TLV431B 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.  
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Copyright 2004, Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...25

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