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參數資料
| 型號： | TLV43IQLPR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PBCY3 |
| 封裝： | PLASTIC, TO-92, 3 PIN |
| 文件頁數： | 1/25頁 |
| 文件大小： | 511K |
| 代理商： | TLV43IQLPR |
TLV431, TLV431A, TLV431B
LOW VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS
SLVS139M JULY 1996 REVISED OCTOBER 2004
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Low-Voltage Operation . . . Down to 1.24 V
D Reference Voltage Tolerances Are:
0.5% for TLV431B
1% for TLV431A
1.5% for TLV431
D Adjustable Output Voltage, VO = VREF to 6 V
D Low Operational Cathode Current ...80 A Typ
D 0.25- Typical Output Impedance
D 405C to 1255C Specifications
REF
ANODE
CATHODE
LP (TO-92/T0-226) PACKAGE
(TOP VIEW)
NC - No internal connection
DBV (SOT23-5) PACKAGE
(TOP VIEW)
1
2
3
5
4
NC
CATHODE
ANODE
REF
DBZ (SOT23-3) PACKAGE
(TOP VIEW)
1
2
3
REF
CATHODE
ANODE
D (SOIC) PACKAGE
(TOP VIEW)
1
2
3
4
8
7
6
5
REF
ANODE
NC
CATHODE
ANODE
NC
DCK (SC-70) PACKAGE
(TOP VIEW)
1
2
3
6
5
4
CATHODE
NC
REF
ANODE
NC
PK (SOT-89) PACKAGE
(TOP VIEW)
CATHODE
ANODE
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 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, 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
. 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.
Copyright
2004, 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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