IRF540 Datasheet – 100V, Power MOSFET

Part number : IRF540

Function : 100V, Power MOSFET

Package :  TO-220AB Pin Type

Manufacturer : Vishay, International Rectifier, STMicroelectronics

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IRF540 MOSFET Transistor

Description

Third generation Power MOSFETs from Vishay provide the designer with the best combi nation of fast swi tching, ruggedized device des ign, low on -resistance a nd
cost-effectiveness. The TO-220AB package is univers ally preferred for all commercial-industrial app lications at powe r dissipation levels to approximately 50 W. The low thermal resistance and low package c ost of th e TO- 220AB con tribute to its wide acceptance throughout the industry.

This MOSFET series realized with STMicroelectronics unique STripFET process has specifically been designed to minimize input capacitance and gate charge. It is therefore suitable as primary switch in advanced highefficiency, high-frequency isolated DC-DC converters for Telecom and Computer applications. It is also intended for any applications with low gate drive requirements.

Pinout

IRF540 datasheet pinout

Features

1. Dynamic dV/dt Rating
2. Repetitive Avalanche Rated
3. 175 °C Operating Temperature
4. Fast Switching
5. Ease of Paralleling
6. Simple Drive Requirements

Applications

1. HIGH-EFFICIENCY DC-DC CONVERTERS
2. UPS AND MOTOR CONTROL

IRF540 Datasheet

 

 

NE555 Datasheet – Precision Timer

Part number : NE555, NE555P, NE555PS, NE555PW,

Function : Precision Timer

Package :  DIP 8, SOP 8 Pin Type

Manufacturer : Texas Instruments, Philips Semiconductor

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NE555 Precision Timer

Description

The NE555 monolithic timing circuit is a highly stable controller capable of producing accurate time delays, or oscillation. In the time delay mode of operation, the time is precisely controlled by one external resistor and capacitor. For a stable operation as an oscillator, the free running frequency and the duty cycle are both accurately controlled with two external resistors and one capacitor. The circuit may be triggered and reset on falling waveforms, and the output structure can source or sink up to 200 mA.

Pinout

NE555 datasheet pinout

Features

1. Turn-off time less than 2 µs
2 Max. operating frequency greater than 500 kHz
3. Timing from microseconds to hours
4. Operates in both astable and monostable modes
5. High output current
6. Adjustable duty cycle
7. TTL compatible
8. Temperature stability of 0.005% per °C

Simplified Schemetic

NE555 Schematic

APPLICATIONS
1. Precision timing
2. Pulse generation
3. Sequential timing
4. Time delay generation
5. Pulse width modulation

Reference sites

1. http://www.ti.com/product/NE555
2. https://en.wikipedia.org/wiki/555_timer_IC

NE555 Datasheet