Overview
The TL431QDBZR,215 is an adjustable precision shunt regulator produced by Nexperia USA Inc. This three-terminal shunt regulator is part of the TL431 family and is designed to provide a programmable output voltage range between 2.495 V and 36 V, which can be set using two external resistors. The device is packaged in a SOT23 package, making it suitable for a variety of applications where space is limited.
The TL431QDBZR,215 is known for its high precision and stability, making it a reliable choice for voltage regulation in various electronic systems. It is qualified according to AEC-Q100 (grade 1), which recommends it for use in automotive applications, among others.
Key Specifications
| Type number | Package version | Package name | Size (mm) | Pinning configuration | Temperature range (T amb) (°C) | Reference voltage tolerance (%) | Reference voltage (V) | Output voltage range (V KA) | Sink current capability (I K) (mA) |
|---|---|---|---|---|---|---|---|---|---|
| TL431QDBZR | SOT23 | SOT23 | 2.9 x 1.3 x 1 | normal | -40 to 125 | 2 | 2.495 | 36 | 100 |
Key Features
- Programmable output voltage up to 36 V using two external resistors.
- Reference voltage tolerance of 2% (standard grade), with options for 1% and 0.5% tolerances in other variants.
- Typical temperature drift of 9 mV over the range of 0 °C to 70 °C.
- Low output noise and typical output impedance of 0.2 Ω.
- Sink current capability from 1 mA to 100 mA.
- Qualified according to AEC-Q100 (grade 1) for automotive applications.
- Isolated feedback loop suitable for Switch Mode Power Supply (SMPS) applications.
Applications
The TL431QDBZR,215 is versatile and finds applications across various industries, including:
- Automotive: For voltage regulation in automotive systems, given its AEC-Q100 qualification.
- Industrial: In industrial control systems, power supplies, and other voltage regulation needs.
- Power: In power supplies, Switch Mode Power Supplies (SMPS), and other power management systems.
- Consumer and Mobile: In consumer electronics and mobile devices where precise voltage regulation is required.
- Wearables: In wearable devices where space and power efficiency are critical.
Q & A
- What is the TL431QDBZR,215 used for?
The TL431QDBZR,215 is used as an adjustable precision shunt regulator for voltage regulation in various electronic systems.
- What is the output voltage range of the TL431QDBZR,215?
The output voltage range is programmable between 2.495 V and 36 V using two external resistors.
- What is the temperature range of the TL431QDBZR,215?
The device operates over a temperature range of -40 °C to 125 °C.
- What is the reference voltage tolerance of the TL431QDBZR,215?
The reference voltage tolerance is 2% for the standard grade.
- What is the sink current capability of the TL431QDBZR,215?
The sink current capability ranges from 1 mA to 100 mA.
- Is the TL431QDBZR,215 suitable for automotive applications?
Yes, it is qualified according to AEC-Q100 (grade 1) for automotive applications.
- What package type is the TL431QDBZR,215 available in?
The device is packaged in a SOT23 package.
- What are some typical applications of the TL431QDBZR,215?
It is used in automotive, industrial, power supplies, consumer electronics, and wearable devices.
- How does the TL431QDBZR,215 handle temperature drift?
The device has a typical temperature drift of 9 mV over the range of 0 °C to 70 °C.
- Is the TL431QDBZR,215 RoHS compliant?
Yes, the TL431QDBZR,215 is RoHS compliant.
