Overview
The LM4041BIDBZRG4 is a precision micropower shunt voltage reference from Texas Instruments. It is part of the LM4041 series, which is designed to be versatile and easy to use across a wide array of applications. This component is available in both fixed and adjustable output versions, with the adjustable version allowing for output voltages between 1.225V and 10V using an external resistor divider. The LM4041BIDBZRG4 is packaged in a SOT-23 (DBZ) package with 3 pins and operates within an industrial temperature range of –40°C to 85°C.
Key Specifications
| Parameter | Test Conditions | Unit | Min | Max | |
|---|---|---|---|---|---|
| Reference Voltage (VREF) | IZ = 100μA, VZ = 5V at 25°C | V | 1.233 | 1.233 | 1.233 |
| Reference Voltage Tolerance | IZ = 100μA, VZ = 5V at 25°C | mV | -2.5 | 2.5 | 2.5 |
| Minimum Cathode Current (IZ,min) | 25°C | μA | 45 | 75 | 75 |
| Reference Voltage Change with Cathode Current Change (ΔVREF/ΔIZ) | IZ,min < IZ < 1mA at 25°C | mV | 0.7 | 1.5 | 1.5 |
| Output Noise | Typical | μVRMS | 20 | ||
| Operating Current Range | Typical | μA to mA | 45μA to 12mA | ||
| Operating Temperature Range | °C | -40 | 85 | ||
| Package Thermal Impedance (θJA) | SOT-23 (DBZ) package | °C/W | 206 | ||
Key Features
- Fixed and Adjustable Outputs: The LM4041BIDBZRG4 offers both fixed (1.225V nominal) and adjustable output voltages (1.225V to 10V) using an external resistor divider.
- Tight Output Tolerances and Low Temperature Coefficient: Available in four grades with output voltage tolerances ranging from 0.1% (A grade) to 1.0% (D grade) and a low temperature coefficient of 100ppm/°C for B grade.
- Low Output Noise: Typical output noise of 20μVRMS.
- Wide Operating Current Range: Operates with a minimum cathode current of 45μA (typical) to a maximum of 12mA.
- Stable with All Capacitive Loads: No external output capacitor is required for operation.
- Compact Packaging: Available in space-saving SOT-23 (DBZ) package with 3 pins.
- Industrial and Extended Temperature Ranges: Operates over an industrial temperature range of –40°C to 85°C and an extended temperature range of –40°C to 125°C.
Applications
- Data-Acquisition Systems
- Power Supplies and Power-Supply Monitors
- Instrumentation and Test Equipment
- Process Control
- Precision Audio
- Automotive Electronics
- Energy Management/Metering
- Battery-Powered Equipment
Q & A
- What is the nominal output voltage of the LM4041BIDBZRG4?
The nominal output voltage is 1.225V, but it can be adjusted between 1.225V and 10V using an external resistor divider.
- What are the different grades of output voltage tolerance available for the LM4041 series?
The LM4041 series is available in four grades: A (0.1%), B (0.2%), C (0.5%), and D (1.0%) output voltage tolerance.
- What is the typical output noise of the LM4041BIDBZRG4?
The typical output noise is 20μVRMS.
- What is the operating current range of the LM4041BIDBZRG4?
The operating current range is from 45μA (typical) to 12mA.
- Does the LM4041BIDBZRG4 require an external output capacitor for operation?
No, it does not require an external output capacitor and is stable with all capacitive loads.
- What are the available temperature ranges for the LM4041BIDBZRG4?
The component operates over an industrial temperature range of –40°C to 85°C and an extended temperature range of –40°C to 125°C.
- In what package is the LM4041BIDBZRG4 available?
The LM4041BIDBZRG4 is available in a SOT-23 (DBZ) package with 3 pins.
- What are some common applications of the LM4041BIDBZRG4?
Common applications include data-acquisition systems, power supplies, instrumentation, process control, precision audio, automotive electronics, energy management, and battery-powered equipment.
- How does the LM4041BIDBZRG4 maintain its output voltage stability?
The component maintains its output voltage stability through low dynamic impedance, low noise, and a low temperature coefficient.
- What is the thermal impedance of the SOT-23 (DBZ) package for the LM4041BIDBZRG4?
The thermal impedance (θJA) for the SOT-23 (DBZ) package is 206°C/W.
