Overview
The TLVH431BQDBZRQ1 is an automotive-grade, low-voltage adjustable precision shunt regulator produced by Texas Instruments. This device is packaged in a SOT-23 (DBZ) package with 3 pins and is designed to operate over a wide temperature range, making it suitable for various automotive and industrial applications. It offers high precision and stability, making it an excellent choice for onboard regulation, adjustable power supplies, and switching power supplies.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOT-23 (DBZ) | |
| Pins | 3 | |
| Operating Temperature Range | -40 to 125 | °C |
| Reference Voltage Tolerance at 25°C | ±0.5% (B Grade) | |
| Typical Temperature Drift | 14 mV (Q Temp) | |
| Output Impedance | 0.2 Ω (Typical) | |
| Sink-Current Capability | 1 mA to 100 mA | |
| Adjustable Output Voltage | 1.24 V to 18 V | |
| Maximum Cathode Voltage | 36 V |
Key Features
- Qualified for automotive applications with AEC-Q100 test guidance.
- Device temperature grade 1: –40°C to 125°C ambient operating temperature range.
- Low output noise and 0.2-Ω typical output impedance.
- Sink-current capability: 1 mA to 100 mA.
- Adjustable output voltage from 1.24 V to 18 V.
- High precision reference voltage with ±0.5% tolerance at 25°C.
- Typical temperature drift of 14 mV.
Applications
- Adjustable voltage and current referencing.
- Secondary side regulation in flyback SMPSs.
- Zener replacement.
- Voltage monitoring.
- Comparator with integrated reference.
- Onboard regulation, adjustable power supplies, and switching power supplies.
Q & A
- What is the TLVH431BQDBZRQ1 used for? The TLVH431BQDBZRQ1 is used as an adjustable precision shunt regulator in various applications including onboard regulation, adjustable power supplies, and switching power supplies.
- What is the operating temperature range of the TLVH431BQDBZRQ1? The operating temperature range is from -40°C to 125°C.
- What is the reference voltage tolerance of the TLVH431BQDBZRQ1 at 25°C? The reference voltage tolerance is ±0.5% at 25°C.
- What is the typical output impedance of the TLVH431BQDBZRQ1? The typical output impedance is 0.2 Ω.
- What is the sink-current capability of the TLVH431BQDBZRQ1? The sink-current capability ranges from 1 mA to 100 mA.
- Can the TLVH431BQDBZRQ1 be used as a Zener diode replacement? Yes, the TLVH431BQDBZRQ1 can be used as a replacement for Zener diodes in many applications.
- What is the adjustable output voltage range of the TLVH431BQDBZRQ1? The adjustable output voltage range is from 1.24 V to 18 V.
- Is the TLVH431BQDBZRQ1 qualified for automotive applications? Yes, it is qualified for automotive applications with AEC-Q100 test guidance.
- What is the typical temperature drift of the TLVH431BQDBZRQ1? The typical temperature drift is 14 mV.
- Does the TLVH431BQDBZRQ1 require an external capacitor for stability? No, the TLVH431BQDBZRQ1 is internally compensated and does not require an external capacitor for stability, although one can be used if desired.
