Overview
The REF4132B25DBVRQ1 from Texas Instruments is a low-drift, low-power, high-precision CMOS voltage reference designed for applications requiring excellent initial voltage accuracy and minimal temperature drift. This device is part of the REF4132-Q1 family, which is qualified for automotive applications and meets the AEC-Q100 standards. It features a compact SOT-23-5 package, making it ideal for space-limited designs. The REF4132B25DBVRQ1 offers low quiescent current consumption, typically 75 μA, and a wide operating temperature range of -40°C to +125°C, ensuring robust performance in various environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage (VO) | 2.5, 3, 3.3, 4.096, 5 | V |
| Initial Accuracy (max) | ±0.05% | % |
| Temperature Coefficient (max) | 12 ppm/°C (A grade), 30 ppm/°C (B grade) | ppm/°C |
| Input Voltage (VIN) Range | 3 to 5.5 | V |
| Quiescent Current (typ) | 75 μA | μA |
| Output Current (max) | ±10 mA | mA |
| Operating Temperature Range | -40°C to +125°C | °C |
| Low Frequency Noise (0.1 Hz to 10 Hz) | 15 μVPP/V (typ) | μVPP/V |
| Package | SOT-23-5 |
Key Features
- Precise Voltage Regulation: Offers high initial accuracy of ±0.05% and low temperature drift of 12 ppm/°C (A grade) and 30 ppm/°C (B grade).
- Low Power Consumption: Typical quiescent current of 75 μA, which is beneficial for battery-powered and portable applications.
- Low Noise and Distortion: Features low output noise of 15 μVPP/V in the 0.1 Hz to 10 Hz frequency range.
- Compact Design: Packaged in a small SOT-23-5 footprint, making it suitable for space-constrained designs.
- Enable Pin: Allows the device to be placed in a low-power shutdown mode, reducing the quiescent current to 2.5 μA (typical).
- Robust Reliability: Qualified for automotive applications with AEC-Q100 certification and a wide 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 automotive traction inverters due to its high precision and reliability.
- Automotive DC/DC Converters: Ideal for automotive DC/DC converters requiring stable and accurate voltage references.
- HEV/EV On-board Chargers and Wireless Chargers: Applicable in Hybrid Electric Vehicle (HEV) and Electric Vehicle (EV) on-board chargers and wireless charging systems.
- Portable and Battery-Powered Devices: Beneficial for portable electronics and battery-powered applications due to its low power consumption.
Q & A
- What is the typical quiescent current of the REF4132B25DBVRQ1?
The typical quiescent current is 75 μA.
- What are the available output voltage options for the REF4132B25DBVRQ1?
The available output voltage options are 2.5V, 3V, 3.3V, 4.096V, and 5V.
- What is the maximum temperature coefficient of the REF4132B25DBVRQ1?
The maximum temperature coefficient is 12 ppm/°C for the A grade and 30 ppm/°C for the B grade.
- What is the operating temperature range of the REF4132B25DBVRQ1?
The operating temperature range is -40°C to +125°C.
- How much output current can the REF4132B25DBVRQ1 source or sink?
The device can source or sink up to ±10 mA of load current.
- What is the package type of the REF4132B25DBVRQ1?
The package type is SOT-23-5.
- Is the REF4132B25DBVRQ1 qualified for automotive applications?
Yes, it is qualified for automotive applications and meets the AEC-Q100 standards.
- How does the enable pin function on the REF4132B25DBVRQ1?
The enable pin allows the device to be placed in a low-power shutdown mode, reducing the quiescent current to 2.5 μA (typical).
- What is the low frequency noise specification of the REF4132B25DBVRQ1?
The low frequency noise is typically 15 μVPP/V in the 0.1 Hz to 10 Hz frequency range.
- What are some common applications of the REF4132B25DBVRQ1?
Common applications include ADAS systems, traction inverters, automotive DC/DC converters, and HEV/EV on-board chargers and wireless chargers.
