Overview
The LM4051AIM3-1.2/NOPB is a precision micropower shunt voltage reference produced by Texas Instruments (formerly National Semiconductor). This component is designed for space-critical applications and is available in the sub-miniature SOT-23 surface-mount package. It is ideal for use in various applications requiring stable voltage reference with minimal power consumption and compact size.
The LM4051-N series, including the LM4051AIM3-1.2/NOPB, features advanced design that eliminates the need for an external stabilizing capacitor, ensuring stability with any capacitive load. This makes the component easy to use and integrate into designs.
Key Specifications
| Parameter | Test Conditions | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|
| Reverse Breakdown Voltage (VR) | IR = 100 μA | 1.225 | V | ||
| Reverse Breakdown Voltage Tolerance | IR = 100 μA, A-grade | ±1.2 mV | |||
| Minimum Operating Current (IRMIN) | TJ = 25°C | 39 μA | 60 μA | μA | |
| Maximum Operating Current | 12 mA | mA | |||
| Temperature Coefficient (∆VREF /∆T) | VOUT = 2.5 V, ∆T = −40°C to +125°C | 20 ppm/°C | ±50 ppm/°C | ppm/°C | |
| Operating Temperature Range | −40°C | +125°C | °C | ||
| Storage Temperature Range | −65°C | +150°C | °C | ||
| Power Dissipation (TA = 25°C) | 280 mW | mW |
Key Features
- Precision micropower shunt voltage reference with a fixed output voltage of 1.225V or adjustable output voltage.
- Available in the sub-miniature SOT-23 surface-mount package, ideal for space-critical applications.
- No external stabilizing capacitor required for stable operation.
- Low minimum operating current of 60 μA.
- Maximum operating current of 12 mA.
- Temperature coefficient of ±50 ppm/°C guaranteed from −40°C to +125°C.
- Three grades available: A-grade (0.1% accuracy), B-grade (0.2% accuracy), and C-grade (0.5% accuracy).
Applications
- Portable, battery-powered equipment.
- Data acquisition systems.
- Instrumentation.
- Process control.
- Energy management.
- Automotive and industrial applications.
- Precision audio components.
- Base stations.
- Battery chargers.
- Medical equipment.
- Communication systems.
Q & A
- What is the LM4051AIM3-1.2/NOPB used for?
The LM4051AIM3-1.2/NOPB is used as a precision micropower shunt voltage reference in various applications requiring stable voltage reference with minimal power consumption.
- What package type is the LM4051AIM3-1.2/NOPB available in?
The component is available in the sub-miniature SOT-23 surface-mount package.
- Does the LM4051AIM3-1.2/NOPB require an external stabilizing capacitor?
No, the LM4051AIM3-1.2/NOPB does not require an external stabilizing capacitor for stable operation.
- What is the minimum operating current of the LM4051AIM3-1.2/NOPB?
The minimum operating current is 60 μA.
- What is the temperature coefficient of the LM4051AIM3-1.2/NOPB?
The temperature coefficient is ±50 ppm/°C guaranteed from −40°C to +125°C.
- What are the different grades available for the LM4051AIM3-1.2/NOPB?
The component is available in three grades: A-grade (0.1% accuracy), B-grade (0.2% accuracy), and C-grade (0.5% accuracy).
- What is the operating temperature range of the LM4051AIM3-1.2/NOPB?
The operating temperature range is from −40°C to +125°C.
- What is the storage temperature range of the LM4051AIM3-1.2/NOPB?
The storage temperature range is from −65°C to +150°C.
- What is the maximum power dissipation of the LM4051AIM3-1.2/NOPB at 25°C?
The maximum power dissipation at 25°C is 280 mW.
- In which applications is the LM4051AIM3-1.2/NOPB commonly used?
The component is commonly used in portable battery-powered equipment, data acquisition systems, instrumentation, process control, energy management, automotive and industrial applications, precision audio components, base stations, battery chargers, medical equipment, and communication systems.
- Is the LM4051AIM3-1.2/NOPB still in production?
No, the LM4051AIM3-1.2/NOPB has been discontinued by Texas Instruments.
