Controller

What is L298N? – Dual H-Bridge Motor Controller

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What is L298N?

This is a dual full-bridge driver integrated circuit (IC) designed to control inductive loads such as DC motors and stepper motors. It can drive up to 2 amps per channel, with a voltage range of 5V to 46V, making it suitable for a wide range of motor control applications.

Function: Dual H-Bridge Motor Controller

Package: Multiwatt15 Type

Manufacturer: STMicroelectronics

Image
L298N motor driver
Description

The L298 is an integrated monolithic circuit in a 15-lead Multiwatt and PowerSO20 packages. It is a high voltage, high current dual full-bridge driver designed to accept standard TTL logic levels and drive inductive loads such as relays, solenoids, DC and stepping motors. Two enable inputs are provided to enable or disable the device independently of the input signals.

The emitters of the lower transistors of each bridge are connected together and the corresponding external terminal can be used for the connection of an external sensing resistor. An additional supply input is provided so that the logic works at a lower voltage.

It is a high voltage, high current, dual full-bridge motor driver designed to accept standard TTL logic levels and drive inductive loads such as relays, solenoids, DC and stepping motors.

 

L298N Image

 

Features

1. OPERATING SUPPLY VOLTAGE UP TO 46 V

2. TOTAL DC CURRENT UP TO 4 A

3. LOW SATURATION VOLTAGE

4. OVERTEMPERATURE PROTECTION

5. LOGICAL “0” INPUT VOLTAGE UP TO 1.5 V (HIGH NOISE IMMUNITY)

Advantages

1. Can control both DC and stepper motors
2. Can handle high current loads
3. Wide voltage range makes it suitable for a variety of applications
4. Built-in diodes protect against back EMF
5. Can be controlled with a microcontroller or other logic circuits

Disadvantages

1. Requires additional components such as power supply and motor
2. May require heat sinks to dissipate heat during operation
3. Limited to two motor channels
4. Requires careful wiring and circuit design to prevent damage to th

Pinout

L298N datasheet pinout

 

Reference Site

1. Full-Bridge Motor Driver Dual  : https://www.sparkfun.com/products/9479

2. Arduino Modules L298N Dual H-Bridge Motor Controller : http://www.instructables.com/

3. Dual Full Bridge Driver : http://www.st.com/

FAQs

Q1: Can this IC be used to control a stepper motor?
A1: Yes, It is suitable for controlling both DC and stepper motors.

Q2: Does the L298N have built-in protection against back EMF?
A2: Yes, It has built-in diodes that protect against back EM

L298N Datasheet


L298N pdf

Other data sheets are available within the file: L298HN, L298P

 

ZEN1020P Datasheet PDF – Interrupt Controller – Zenic

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What is ZEN1020P?

This IC is an integrated circuit that is used to manage interrupts in a computer or electronic system. Interrupts are signals that are sent to the processor to indicate that an event has occurred, such as the completion of a data transfer or the occurrence of an error.

A programmable interrupt control IC typically includes a number of registers that can be programmed to control the behavior of the interrupts. For example, the registers can be used to enable or disable specific interrupts, set the priority level of the interrupts, and specify the type of interrupt handling that should be used.

Function: Z80 for the Interrupt Controller

Package: DIP 28 Pin

Manufacturer: Zenic

Pinouts:

ZEN1020P datasheet

 

Description

The ZEN1020P is a programmable interrupt control IC for Z80 and is used as a peripheral element of Z80 CPU. The ZEN 1020P supports mode 2 interrupts for up to eight factors. The interrupt mask and vector address specification are controlled by the program and it is also selectable whether to detect the occurrence of the interrupt factor by the edge or by the level. Also, by forming a daisy chain, it can handle even more interrupt control.

 

Features

1. Z80 Programmable Interrupt Controller
2. 8 level up to support the cause of interrupt mode 2
3. interrupt mask for each interrupt source, specify the vector address is programmable
4. It can form a daisy chain
5. Maximum clock frequency 8MHz
6. Low power consumption by CMOS process adopted
7. + 5v single supply

Other data sheets are available within the file: ZEN1020

ZEN1020P Datasheet PDF Download


ZEN1020P pdf