Overview
The LM336BMX-5.0, produced by Texas Instruments (formerly National Semiconductor), is a precision 5.0V shunt regulator diode. This monolithic IC voltage reference operates as a low temperature coefficient 5.0V zener with a dynamic impedance of 0.6Ω. The LM336 series is particularly useful for applications requiring a stable voltage reference from low voltage supplies. It can be used as either a positive or negative voltage reference due to its shunt regulator operation.
The device is available in various packages, including TO-92, TO-46, and SOIC, making it versatile for different design needs. The LM336-5.0 is rated for operation over a temperature range of 0°C to +70°C, ensuring reliability in a variety of environmental conditions.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Reverse Breakdown Voltage | TA=25°C, IR=1 mA | 4.8 | 5.00 | 5.2 | V |
| Reverse Dynamic Impedance | TA=25°C, IR=1 mA, f = 100 Hz | 0.6 | 1.2 | 2 | Ω |
| Operating Current | 600 µA | 10 mA | |||
| Operating Temperature Range | 0°C | +70°C | |||
| Storage Temperature | -60°C | +150°C | |||
| Forward Current | 10 mA | ||||
| Reverse Current | 15 mA |
Key Features
- Adjustable 4V to 6V reference voltage
- Low temperature coefficient
- Wide operating current range of 600 µA to 10 mA
- 0.6Ω dynamic impedance
- ± 1% initial tolerance available
- Guaranteed temperature stability
- Easily trimmed for minimum temperature drift
- Fast turn-on
- Available in three lead transistor packages (TO-92, TO-46, SOIC)
Applications
- Precision 5.0V reference for digital voltmeters, power supplies, or op amp circuitry
- Precision power regulators with low temperature coefficient
- 5V crowbar circuits
- Adjustable shunt regulators
- Linear ohmmeters
- Op amp circuits with output clamped
- Bipolar output references
- Low noise buffered references
- Wide input range references
Q & A
- What is the primary function of the LM336BMX-5.0?
The LM336BMX-5.0 is a precision 5.0V shunt regulator diode, serving as a stable voltage reference.
- What are the operating temperature ranges for the LM336-5.0?
The LM336-5.0 operates over a temperature range of 0°C to +70°C.
- What is the dynamic impedance of the LM336-5.0?
The dynamic impedance of the LM336-5.0 is 0.6Ω.
- Can the LM336-5.0 be used as both a positive and negative voltage reference?
- What is the typical operating current range of the LM336-5.0?
The typical operating current range is from 600 µA to 10 mA.
- How can the temperature coefficient of the LM336-5.0 be minimized?
The temperature coefficient can be minimized by using a circuit with additional diodes and a potentiometer to adjust the reference voltage, as shown in the datasheet.
- What are the absolute maximum ratings for forward and reverse current?
The absolute maximum ratings are 10 mA for forward current and 15 mA for reverse current.
- What are the storage temperature limits for the LM336-5.0?
The storage temperature limits are from -60°C to +150°C.
- In what packages is the LM336BMX-5.0 available?
The LM336BMX-5.0 is available in TO-92, TO-46, and SOIC packages.
- Can the LM336-5.0 be used in life support devices or systems?
No, the LM336-5.0 is not authorized for use as a critical component in life support devices or systems without the express written approval of Texas Instruments.
