參數(shù)資料
型號: TLVH431BIDBZTG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 基準電壓源/電流源
英文描述: 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.24 V, PDSO3
封裝: GREEN, PLASTIC, SOT-23, 3 PIN
文件頁數(shù): 12/50頁
文件大?。?/td> 990K
代理商: TLVH431BIDBZTG4
SLVS555I – NOVEMBER 2004 – REVISED SEPTEMBER 2009....................................................................................................................................... www.ti.com
DESCRIPTION/ORDERING INFORMATION
The TLVH431 and TLVH432 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 18 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 TLVH431 and TLVH432 are ideal voltage references in isolated feedback
circuits for 3-V to 3.3-V switching-mode power supplies. They have a typical output impedance of 0.25
. Active
output circuitry provides a very sharp turn-on characteristic, making the TLVH431 and TLVH432 excellent
replacements for low-voltage Zener diodes in many applications, including on-board regulation and adjustable
power supplies.
The TLVH432 is identical to the TLVH431, but is offered with different pinouts for the SOT-23-3 and SOT-89
packages.
2
Copyright 2004–2009, Texas Instruments Incorporated
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