Overview
The REF4132A25DBVRQ1 is a low-drift, low-power precision bandgap voltage reference from Texas Instruments. This device is designed for excellent initial voltage accuracy and minimal temperature drift, making it suitable for a wide range of applications, particularly in the automotive and industrial sectors. It is AEC-Q100 qualified, ensuring reliability and performance in harsh environments. The REF4132A25DBVRQ1 features a small footprint in a 5-pin SOT-23 package, enhancing its usability in space-constrained designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage Options | 2.5V, 3V, 3.3V, 4.096V, 5V | V |
| Initial Accuracy | ±0.05% (maximum) | % |
| Temperature Coefficient | A grade: 12 ppm/°C (maximum), B grade: 30 ppm/°C (maximum) | ppm/°C |
| Operating Temperature Range | −40°C to +125°C | °C |
| Output Current | ±10 mA | mA |
| Quiescent Current | 100 μA (maximum) | μA |
| Output Noise (0.1 Hz to 10 Hz) | 15 µVPP/V | µVPP/V |
| Long-term Stability | 30 ppm/1000 hrs | ppm/1000 hrs |
| Package | 5-pin SOT-23 | |
| Input Voltage Range | VREF + VDO to 5.5 V | V |
| ESD Rating (HBM) | ±2500 V | V |
Key Features
- Low Temperature Drift: The REF4132A25DBVRQ1 has a low temperature drift of 12 ppm/°C (A grade) and 30 ppm/°C (B grade), ensuring stable output voltage across a wide temperature range.
- High Precision: Offers ±0.05% initial accuracy, making it suitable for high-precision applications.
- Low Power Consumption: Features a low quiescent current of 100 μA (maximum), which is beneficial for battery-powered and portable applications.
- Low Output Noise: Exhibits low output noise of 15 µVPP/V in the 0.1 Hz to 10 Hz frequency range, enhancing signal integrity in noise-critical systems.
- Small Footprint: Packaged in a compact 5-pin SOT-23 package, ideal for space-constrained designs.
- Enable Pin: Allows the device to be placed in a low-power shutdown mode by pulling the ENABLE pin low, reducing the quiescent current to 2.5 µA (typical).
- Automotive Qualified: AEC-Q100 qualified with a device temperature grade 1: −40°C to +125°C ambient operating temperature range.
Applications
- ADAS Systems: Suitable for Advanced Driver Assistance Systems (ADAS) such as front camera and surround view system ECU.
- Traction Inverter: Used in traction inverter applications in electric and hybrid vehicles.
- Automotive DC/DC Converter: Ideal for automotive DC/DC converters due to its high precision and low drift.
- HEV/EV On-board Charger (OBC) & Wireless Charger: Applicable in on-board chargers and wireless chargers for hybrid and electric vehicles.
- Data Acquisition Systems: Used in data acquisition systems, particularly those requiring high precision and low noise.
Q & A
- What is the operating temperature range of the REF4132A25DBVRQ1?
The operating temperature range is −40°C to +125°C.
- What are the available output voltage options for the REF4132A25DBVRQ1?
The available output voltage options are 2.5V, 3V, 3.3V, 4.096V, and 5V.
- What is the maximum quiescent current of the REF4132A25DBVRQ1?
The maximum quiescent current is 100 μA.
- How much output current can the REF4132A25DBVRQ1 source or sink?
The device can source or sink up to ±10 mA of load current.
- What is the ESD rating of the REF4132A25DBVRQ1 according to the HBM model?
The ESD rating is ±2500 V according to the HBM model.
- Can the REF4132A25DBVRQ1 be used in automotive applications?
Yes, it is AEC-Q100 qualified and suitable for automotive applications.
- How does the enable pin function on the REF4132A25DBVRQ1?
Pulling the enable pin high activates the device, while pulling it low places the device in a low-power shutdown mode.
- What is the typical output noise of the REF4132A25DBVRQ1 in the 0.1 Hz to 10 Hz frequency range?
The typical output noise is 15 µVPP/V.
- What is the package type of the REF4132A25DBVRQ1?
The device is packaged in a 5-pin SOT-23 package.
- What is the long-term stability of the REF4132A25DBVRQ1?
The long-term stability is 30 ppm/1000 hours.
