TLVH431QDBZR

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TLVH431QDBZR

IC VREF SHUNT ADJ 1.5% SOT23-3

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  • Mfr。パート #TLVH431QDBZR
  • パッケージ SOT23-3
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仕様

Package Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus Active
ReferenceType Shunt
OutputType Adjustable
Voltage-Output(Min/Fixed) 1.24V
Voltage-Output(Max) 18 V
Current-Output 70 mA
Tolerance ±1.5%
Current-Cathode 100 µA
OperatingTemperature -40°C ~ 125°C (TA)
MountingType Surface Mount
Package/Case TO-236-3, SC-59, SOT-23-3

概要

Description

TLVH431QDBZR is TI’s automotive-grade, high-voltage programmable shunt regulator (TLV431 family). It acts like a precision Zener with a 2.495 V reference between REF and ANODE. By using external resistors from the output (cathode) to REF and ANODE, you set a regulated output approximately as Vout ≈ Vref × (1 + R1/R2) (Iref term is small). It shunts current to maintain the reference, useful as a fixed, adjustable reference or post-regulation element. Key points: high-voltage capability (HV version), low dynamic impedance, good temperature stability, and automotive-grade reliability (QDBZR). Typical applications include precision references, post-regulation for DC-DC converters, battery chargers, LED drivers, and overvoltage protection in energy-supply circuits.

Features

TLVH431QDBZR features (concise):
- Precision programmable shunt regulator with a 2.495 V reference
- Output set by external resistor divider (Vout = Vref(1 + R1/R2) + Iref·R1)
- Automotive-grade device: Q suffix, AEC-Q100 qualified
- Wide operating temperature: -40°C to +125°C
- Wide cathode-to-anode voltage rating (up to about 36 V for TLV/TL431 family variants)
- 3-pin DBZR package (automotive/ RoHS compliant)
- Low dynamic impedance with good line and load regulation
- Stable, industry-standard TL431-family behavior suitable for precision reference tasks
Notes: It’s a three-terminal precision shunt regulator; it sinks current to regulate the output through the external divider.

Package

3-pin SOT-23 package (SOT-23-3), Pb-free/RoHS compliant.

Pinout

Pin count: 3 (SOT-23/3 package).
Function: Precision adjustable shunt voltage reference (programmable zener). It maintains a fixed reference between REF and ANODE (about 2.495 V) by regulating current through the CATHODE, making it suitable for use in feedback/regulation circuits.
Typical pinout (SOT-23-3): Pin 1 = REF, Pin 2 = ANODE, Pin 3 = CATHODE.

Manufacturer

Manufactor: Texas Instruments (TI).
What kind of company: TI is an American multinational semiconductor company that designs and manufactures a broad range of integrated circuits and analog/embedded processing devices for various industries.

Application

TLVH431QDBZR is a 1.24 V adjustable shunt regulator. Applications: precision reference and error amplifier in linear and switching regulators; reference for DC-DC feedback; post-regulation for microcontroller/ADC power; battery charger/BMS circuits; LED drivers; instrumentation needing a low-drift reference.

Equivalent

TLVH431QDBZR is a programmable shunt regulator. Common equivalent parts include:
- TL431 family (TL431, TLV431, LMV431)
- AZ431 (Diodes Inc)
- KA431 (ROHM)
- NCP431 (ON Semiconductor)
- REF431 / ADM431 (Analog Devices)
These are cross-reference equivalents across major manufacturers.

出荷

出荷方法私たち

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出荷料参照（DHL/FedEx）:

DHL の: 配送費は25ドル〜45ドル（0.5kg）の範囲で、推定配送時間は2〜5営業日です。

フェデックス: 配送費は25ドル〜40ドル（0.5kg）の範囲で、推定配送時間は3〜7営業日。

UPS の: 配送費は25ドル〜45ドル（0.5kg）の範囲で、推定配送時間は3〜7営業日。

TNT社: 配送費は25ドル〜65ドル（0.5kg）の範囲で、推定配送時間は3〜7営業日。

EMS: 配送料金は30〜50ドル（0.5kg）の範囲で、推定配送時間は7〜15営業日です。

登録航空郵便: 配送費は2〜4ドル（0.1kg）で、推定配送時間は5〜20営業日です。

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