Part Number: L293D
Function: PUSH-PULL FOUR CHANNEL DRIVER WITH DIODES
Package: DIP 16 Pin Type
Manufacturer: STMicroelectronics
Pinout
Description:
A push-pull four-channel driver, also known as a quad push-pull driver, is an electronic circuit or integrated circuit (IC) designed to drive multiple output channels in a push-pull configuration. It is commonly used in audio amplifiers and other applications where multiple signals need to be amplified and delivered to corresponding output devices.
The push-pull configuration consists of two complementary output stages, typically one NPN (negative-positive-negative) and one PNP (positive-negative-positive) transistor. Each output stage is responsible for amplifying and driving one half of the audio waveform. When one transistor is conducting, the other is in a non-conducting state, allowing for efficient amplification and improved output signal quality.
The Device is a monolithic integrated high voltage, high current four channel driver designed to accept standard DTL or TTL logic levels and drive inductive loads (such as relays solenoides, DC and stepping motors) and switching power transistors.
To simplify use as two bridges each pair of channels is equipped with an enable input. A separate supply input is provided for the logic, allowing operation at a lower voltage and internal clamp diodes are included.
This device is suitable for use in switching applications at frequencies up to 5 kHz.
Features
1. 600mA OUTPUT CURRENT CAPABILITY PER CHANNEL
2. 1.2A PEAK OUTPUT CURRENT (non repetitive) PER CHANNEL
3. ENABLE FACILITY
4. OVERTEMPERATURE PROTECTION
5. LOGICAL “0” INPUT VOLTAGE UP TO 1.5 V (HIGH NOISE IMMUNITY)
6. INTERNAL CLAMP DIODES
This type of driver is commonly used in multi-channel audio amplifiers found in home theater systems, car audio systems, professional audio equipment, and other applications where multiple channels need to be amplified and controlled independently. It allows for precise control and amplification of each channel’s signal, resulting in accurate reproduction and improved audio performance.
L293D Datasheet PDF
Other data sheets are available within the file: L293DD
