الصفحة الرئيسية > الدوائر المتكاملة لإدارة الطاقة (PMIC) > الدوائر المتكاملة لسائق البوابة > L298N

L298N

Dual full-bridge motor driver, 46V, 4A total, TTL logic, Multiwatt-15, DC/stepper motors

10224

المخزون الفعال

انتقل إلى الاستفسار

Image for reference only

جزء الشركة المصنعة ： جزء الشركة المصنعة

L298N

الحزمة ： الحزمة

Multiwatt-15 Vertical (through-hole, 20.2 x 5.0 mm)

العلامة التجارية ： العلامة التجارية

فئات المنتجات:：فئات المنتجات

الدوائر المتكاملة لسائق البوابة, الدوائر المتكاملة الدوائر المتكاملة

توصيات أخرى قد تكون مهتماً بها.

الوصف

نظرة عامة على المنتج

The L298N from STMicroelectronics is a Dual Full-Bridge Driver IC in a 15-lead Multiwatt vertical package. It is designed to accept standard TTL logic levels and drive inductive loads such as relays, solenoids, DC motors, and stepper motors at supply voltages up to 46 V and total DC current up to 4 A.

المواصفات الرئيسية

التكوين	Dual Full Bridge
جهد الإمداد	Up to 46 V
Output Current (per bridge)	2 A DC
Total DC Current	4 A
Peak Output Current	3 A
Logic Input Voltage	TTL compatible
Enable Inputs	2 (independent)
Saturation Voltage	Low (1.8V typ @ 1A)
درجة حرارة التشغيل	-25°C to +130°C
الحزمة	Multiwatt-15 Vertical

الميزات

Operating supply voltage up to 46 V
Total DC current up to 4 A
Low saturation voltage for higher efficiency
Overtemperature protection
Logical “0” input voltage up to 1.5 V (high noise immunity)
Two independent enable inputs
External sense resistor connections for current monitoring

التطبيقات

Dual brush DC motor drive
Stepper motor control
Relay and solenoid driving
Robotics and automation
Automotive motor control

مقدمة المنتج:L298N مقدمة المنتج

The L298N from STMicroelectronics is a high-voltage, high-current dual full-bridge driver IC designed to accept standard TTL logic levels and drive inductive loads such as DC motors, stepper motors, relays, and solenoids. It is one of the most widely used motor driver ICs in hobbyist and educational projects. The device features two enable inputs for independent bridge control, and the lower transistors of each bridge have their emitters connected together for external current sensing via sense resistors.

مبدأ العمل:L298N مبدأ العمل

The L298N contains two independent full H-bridge circuits, each capable of driving a DC motor bidirectionally or a stepper motor coil. Each bridge consists of four power transistors in an H-bridge configuration. By applying appropriate logic levels to the input pins (IN1/IN2 for bridge A, IN3/IN4 for bridge B), the current direction through the load can be reversed, enabling forward/reverse motor control. The enable pins (ENA, ENB) allow PWM speed control when driven with a pulse-width modulated signal. Current sensing is achieved by connecting sense resistors between the sense pins and ground.

وصف الدبوس:L298N تعريف الدبوس ووظائفه

دبوس	الاسم	النوع	الوظيفة
1	CURRENT SENSE A	المخرجات	Bridge A current sense (connect sense resistor to GND)
2	OUTPUT 1	المخرجات	Bridge A output 1 (motor terminal)
3	OUTPUT 2	المخرجات	Bridge A output 2 (motor terminal)
4	VS	الطاقة	Motor supply voltage (up to 46V)
5	INPUT 1	المدخلات	Bridge A logic input 1
6	ENABLE A	المدخلات	Bridge A enable (active high, PWM input)
7	INPUT 2	المدخلات	Bridge A logic input 2
8	GND	أرضي	أرضي
9	VSS	الطاقة	Logic supply voltage (5V)
10	INPUT 3	المدخلات	Bridge B logic input 1
11	ENABLE B	المدخلات	Bridge B enable (active high, PWM input)
12	INPUT 4	المدخلات	Bridge B logic input 2
13	OUTPUT 3	المخرجات	Bridge B output 1 (motor terminal)
14	OUTPUT 4	المخرجات	Bridge B output 2 (motor terminal)
15	CURRENT SENSE B	المخرجات	Bridge B current sense

Application Scenarios:In which products and applications isL298N مستعمل

DC motor speed and direction control
Bipolar stepper motor driving
Robot locomotion and arm control
Relay and solenoid switching
Automotive wiper and window motor control

Alternative Models:What chips are recommended as replacements for L298N

الشركة المصنعة	رقم الجزء	الحزمة	الملاحظات
STMicroelectronics	L298P	PowerSO-20	SMD version of L298N
STMicroelectronics	L298HN	Multiwatt-15 H	Horizontal mount variant
تكساس إنسترومنتس	DRV8833	HTSSOP-16	Dual H-bridge, lower voltage
Allegro	A4988	TSSOP-28	Stepper driver with microstepping