Texas Instruments

CD4047BE

The Texas Instruments CD4047BE is a high-gain, programmable unijunction transistor (PUT) oscillator/timer integrated circuit (IC). It is designed to provide a versatile and flexible solution for various timing and pulse generation applications. Here's a brief description, features, and applications of the CD4047BE:

Description:

The CD4047BE is a monolithic integrated circuit that combines a high-gain PUT with an oscillator/timer circuit. It is available in a 16-pin dual-in-line package (DIP) and operates over a wide supply voltage range of 4.5V to 15V. The IC features internal frequency-determining resistors and an external timing capacitor, allowing for easy frequency adjustment.

Features:

1. High-gain PUT: The CD4047BE features a high-gain PUT with a typical gain of 100, making it suitable for a wide range of applications.
2. Oscillator/timer functionality: The IC can be used as an oscillator or timer, providing flexibility in various applications.
3. Wide supply voltage range: The CD4047BE operates over a supply voltage range of 4.5V to 15V, making it suitable for a variety of power supply configurations.
4. Frequency adjustability: The frequency of the oscillator can be easily adjusted by selecting an appropriate external timing capacitor and resistor.
5. Programmable output: The output of the CD4047BE can be programmed to provide either a single pulse or a continuous series of pulses, depending on the application requirements.
6. Low power consumption: The IC offers low power consumption, making it suitable for battery-powered applications.
7. Internal frequency-determining resistors: The CD4047BE includes internal resistors that help set the frequency of the oscillator, reducing the need for external components.

Applications:

1. Pulse generators: The CD4047BE can be used to generate precise time-delayed pulses in various applications, such as electronic circuits, industrial control systems, and telecommunications equipment.
2. Oscillators: The IC can be used as a stable oscillator in applications requiring a fixed frequency output, such as frequency dividers, waveform generators, and signal processing circuits.
3. Timers: The CD4047BE can be used as a timer in applications that require precise time intervals, such as motor control, lighting control, and appliance control.
4. Switching and control circuits: The programmable output of the CD4047BE makes it suitable for use in switching and control circuits, such as power supply control, relay control, and motor speed control.
5. Automotive applications: The IC can be used in automotive applications for functions like ignition timing, fuel injection control, and anti-lock braking systems (ABS).
6. Medical equipment: The CD4047BE can be used in medical equipment for functions like pulse monitoring, defibrillator control, and infusion pump control.

In summary, the Texas Instruments CD4047BE is a versatile and flexible integrated circuit that can be used in a wide range of applications requiring precise timing, pulse generation, and oscillator/timer functionality. Its high-gain PUT, wide supply voltage range, and frequency adjustability make it a popular choice for designers looking for a reliable and easy-to-use timing solution.