Overview
The TL4051B12IDBZR is a precision micropower shunt voltage reference from Texas Instruments. This device is part of the TL4051 series, known for its versatility and ease of use in a wide range of applications. The TL4051B12IDBZR offers a fixed 1.225-V output and is characterized by its low temperature coefficient, low noise, and stability across various operating currents and temperatures.
The device is available in the SOT-23-3 package and is suitable for industrial temperature ranges from –40°C to 85°C. It requires no external capacitors for operation and is stable with all capacitive loads, making it ideal for applications where space and power efficiency are critical.
Key Specifications
| Parameter | Unit | Min | Max | |
|---|---|---|---|---|
| Reverse Breakdown Voltage (VZ) | V | 1.225 | 1.225 | 1.225 |
| Temperature Coefficient | ppm/°C | 50 | ||
| Operating Temperature Range | °C | –40 | 85 | |
| Minimum Cathode Current (IZ,min) | µA | 45 | 60 | |
| Continuous Cathode Current (IZ) | mA | 12 | ||
| Output Noise | µVRMS | 20 | ||
| Package Thermal Impedance (θJA) | °C/W | 206 |
Key Features
- Fixed and Adjustable Output: The TL4051B12IDBZR offers a fixed 1.225-V output, and the adjustable version allows the output voltage to be set by an external resistor divider.
- Low Temperature Coefficient: With a temperature coefficient of 50 ppm/°C, the device ensures stable output voltage over a wide temperature range.
- Low Noise: The device features low output noise of 20 µVRMS (typical).
- Wide Operating Current Range: Operates with a minimum current of 45 µA and a maximum current of 12 mA.
- No External Capacitor Required: Stable with all capacitive loads without the need for an external capacitor.
- Compact Packaging: Available in space-saving SOT-23-3 and SC-70 packages.
- Industrial Temperature Range: Operates over an ambient temperature range of –40°C to 85°C.
Applications
- Power Supplies and Power-Supply Monitors: Ideal for precision voltage regulation in power supply systems.
- Instrumentation and Test Equipment: Used in various measurement and testing instruments due to its high precision.
- Process Control: Suitable for process control systems requiring stable reference voltages.
- Precision Audio: Used in audio equipment to ensure high-quality signal processing.
- Automotive Electronics: Applicable in automotive systems where reliability and precision are crucial.
- Energy Management/Metering: Used in energy management and metering applications for accurate voltage references.
- Battery-Powered Equipment: Ideal for portable and battery-powered devices due to its low power consumption.
Q & A
- What is the fixed output voltage of the TL4051B12IDBZR?
The fixed output voltage of the TL4051B12IDBZR is 1.225 V.
- What is the temperature coefficient of the TL4051B12IDBZR?
The temperature coefficient is 50 ppm/°C.
- Does the TL4051B12IDBZR require an external capacitor for stability?
No, the TL4051B12IDBZR is stable with all capacitive loads and does not require an external capacitor.
- What is the operating temperature range of the TL4051B12IDBZR?
The operating temperature range is from –40°C to 85°C.
- What is the minimum cathode current required for the TL4051B12IDBZR?
The minimum cathode current is 45 µA.
- What is the maximum continuous cathode current for the TL4051B12IDBZR?
The maximum continuous cathode current is 12 mA.
- What is the typical output noise of the TL4051B12IDBZR?
The typical output noise is 20 µVRMS.
- In what package is the TL4051B12IDBZR available?
The TL4051B12IDBZR is available in the SOT-23-3 package.
- Is the TL4051B12IDBZR suitable for automotive applications?
- Can the TL4051B12IDBZR be used in battery-powered equipment?
