Overview
The LM385BZ-2.5G is a micropower two-terminal bandgap voltage regulator diode produced by onsemi. This device is part of the LM285/LM385 series, designed to operate over a wide current range from 10 μA to 20 mA. It features exceptionally low dynamic impedance, low noise, and stable operation over a broad temperature range. The LM385BZ-2.5G is specifically rated for an operating temperature range of 0°C to +70°C and is available in a TO-92 package, making it suitable for various applications requiring precise voltage regulation.
Key Specifications
| Characteristic | Symbol | Value | Unit |
|---|---|---|---|
| Reverse Breakdown Voltage | V(BR)R | 2.462 - 2.538 | V |
| Minimum Operating Current | IRmin | 13 - 30 | μA |
| Reverse Dynamic Impedance | Z | 0.6 | Ω |
| Average Temperature Coefficient | ΔV(BR)/ΔT | 80 | ppm/°C |
| Wideband Noise (RMS) | n | 120 | μV |
| Long Term Stability | S | 20 | ppm/kHR |
| Operating Ambient Temperature Range | TA | 0 to +70 | °C |
| Operating Junction Temperature | TJ | +150 | °C |
| Storage Temperature Range | Tstg | -65 to +150 | °C |
| Electrostatic Discharge Sensitivity (HBM) | ESD | 4000 | V |
Key Features
- Operating current range from 10 μA to 20 mA
- 1.0%, 1.5%, 2.0%, and 3.0% initial tolerance grades
- Low temperature coefficient
- Low dynamic impedance (0.6 Ω at 100 μA)
- Surface mount package available
- Pb-free and RoHS compliant
Applications
The LM385BZ-2.5G is ideal for applications requiring precise voltage regulation, such as portable instrumentation, regulators, and other analog circuitry where extended battery life is crucial. It is also suitable for use in micropower circuitry and in systems with widely varying supply voltages.
Q & A
- What is the operating temperature range of the LM385BZ-2.5G? The operating temperature range is from 0°C to +70°C.
- What are the available voltage versions for the LM385 series? The LM385 series is available in 1.235 V and 2.500 V versions.
- What is the minimum operating current for the LM385BZ-2.5G? The minimum operating current is between 13 μA and 30 μA.
- Is the LM385BZ-2.5G Pb-free and RoHS compliant? Yes, the device is Pb-free and RoHS compliant.
- What is the reverse dynamic impedance of the LM385BZ-2.5G? The reverse dynamic impedance is 0.6 Ω at 100 μA.
- What is the average temperature coefficient of the LM385BZ-2.5G? The average temperature coefficient is 80 ppm/°C.
- What is the wideband noise (RMS) of the LM385BZ-2.5G? The wideband noise (RMS) is 120 μV.
- What is the long-term stability of the LM385BZ-2.5G? The long-term stability is 20 ppm/kHR.
- What are the maximum ratings for forward current and reverse current? The maximum forward current is 10 mA, and the maximum reverse current is 30 mA.
- What is the storage temperature range for the LM385BZ-2.5G? The storage temperature range is from -65°C to +150°C.
