LP395 POWER TRANSISTOR
LP395 is the most reliable power transistor which had multiple applications at the voltage and current regulator circuits, in this article we explain LP395 transistor specifications and characteristics based on the LP395 datasheet.
Specification & features of the LP395 power transistor
- LP395 is a fast monolithic power transistor
- Collector to emitter voltage (VCE) is 36V
- Collector to base voltage (VCB) is 36V
- Base to emitter voltage (VBE) is 36V
- Base to emitter reverse voltage (VBE (REV)) is 10V
- Base to emitter reverse current (IBE (REV)) is 20mA
- Collector current is internally limited
- Power dissipation is internally limited
- Base current (IB) is -0.3 to -2.5µA
- Quiescent current (IQ) is 24 to 0.60mA
- Saturation voltage is 82 to 2.10v
- Base to emitter break down voltage (BVBE) is 36V
- Switching time is 2µA
- Operating temperature is -65°C to +150°C
- High gain
- Current limiting
- Power limiting
- Overload protection
- Thermal overload protection
- Excessive power dissipation
PINOUT DETAILS & PACKAGE OF LP395 POWER TRANSISTOR
The PINOUT pattern used at the LP395 power transistor is EBC, it is the most common transistor terminal pattern used for the power transistor.
The package used at LP395 transistor is TO-92, it is the common package used at the general transistor.
LP395 power transistor datasheet
If you need the datasheet in pdf please click this link
Electrical characteristics description of the LP395 power transistor
LP395 power transistor had multiple applications at the voltage and current regulate related circuits such as current and voltage limiter circuits.
The collector to emitter voltage, collector to base voltage, and base to emitter voltage values of the LP395 power transistor are the same 36v, this is a clear indication that the LP395 power transistor is a regulator component.
The base to emitter reverse voltage is 10v and saturation voltage is 1.82v to 2.10v, both this value is important for limiter circuits.
The collector current of the LP395 power transistor is internally limited, base to emitter reverse current is 20mA, the base current is -0.3 to -2.5µA, the quiescent current is 0.24 to 0.60mA.
The switching time speed of the LP395 power transistor is 2µs, this is a higher speed for a transistor, and this is why the LP395 transistor had applications at switching regulator circuits.
LAMP FLASHER CIRCUIT USING LP395 TRANSISTOR
The figure shows the lamp flasher circuit using LP395 transistor, the resistor, capacitor network made a voltage divider, and then the LP395 transistor booster up the voltage and pass over to the lamp for to works as a flasher.
Uses of the LP395 power transistor
- Current limiter circuit
- Voltage limiter circuit
- Regulator circuits
- Switching regulator circuits
- Lamp flasher circuits
- Switching applications