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BD681

Name: BD681
Rating: 4.7 (12 reviews)

TRANS NPN DARL 100V 4A TO126

Производитель
Мфр. Часть #BD681
Пакет TO-225AA, TO-126-3
Лист данных BD681 DataSheet
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Спецификации

Supplier	onsemi
Package	Bulk
ProductStatus	Obsolete
TransistorType	NPN - Darlington
Current-Collector(Ic)(Max)	4 A
Voltage-CollectorEmitterBreakdown(Max)	100 V
VceSaturation(Max)@IbIc	2.5V @ 30mA, 1.5A
Current-CollectorCutoff(Max)	500µA
DCCurrentGain(hFE)(Min)@IcVce	750 @ 1.5A, 3V
Power-Max	40 W
OperatingTemperature	-55°C ~ 150°C (TJ)
MountingType	Through Hole
Package/Case	TO-225AA, TO-126-3

Обзор

Description

BD681 is a high-performance, power NPN transistor designed for audio and general-purpose applications. It features a high current gain and is capable of handling significant power levels, making it suitable for use in amplifiers and power management circuits. The transistor typically has a maximum collector current rating of around 4A and a collector-emitter voltage rating of 50V, which allows it to efficiently drive loads in various electronic devices.
It has a wide frequency response and can operate effectively in both linear and switching modes. BD681 is often housed in a TO-220 package, providing good thermal performance and ease of heat sinking. When using this transistor, it is important to consider its thermal characteristics and ensure proper biasing to avoid thermal runaway.
Overall, BD681 is a versatile component widely utilized in audio amplifiers, power supplies, and other electronic circuits requiring reliable amplification and switching capabilities.

Features

The BD681 is a biphasic DC motor driver IC designed for use in various applications, including DC fans and electric vehicles. Key features include:
1. High-Current Handling: Capable of driving high currents, making it suitable for demanding applications.
2. Dual H-Bridge Configuration: Allows for bidirectional control of motors, enabling forward and reverse operation.
3. Integrated Protection Features: Includes overcurrent protection, thermal shutdown, and undervoltage lockout to ensure safe operation.
4. PWM Control: Supports Pulse Width Modulation for speed control, enhancing efficiency and performance.
5. Low On-Resistance: Minimizes power loss and heat generation, improving overall efficiency.
6. Compact Package: Available in a small form factor, making it easy to integrate into various designs.
7. Wide Operating Voltage Range: Suitable for a variety of power supply voltages, enhancing versatility.
These features make the BD681 a reliable choice for driving motors in diverse electronic applications.

Package

The BD681 is typically available in a TO-220 package type. This package features a metal tab for heat dissipation and is commonly used for power transistors in applications requiring efficient thermal management.

Pinout

The BD681 is a power amplifier IC primarily used for driving motors and other inductive loads. It typically comes in a multi-pin package, specifically the TO-220 or similar configurations, featuring 7 pins.
Pin Count and Functions:
1. Pin 1 (VCC): Positive power supply (typically +15V to +40V).
2. Pin 2 (GND): Ground connection.
3. Pin 3 (IN): Input signal; received from the control circuit.
4. Pin 4 (COM): Common output; connects to the load.
5. Pin 5 (OUT): Output to the motor/load.
6. Pin 6 (NC): Not connected; reserved for future use or internal circuitry.
7. Pin 7 (VEE): Negative power supply (typically -15V to -40V).
The BD681 operates as a complementary push-pull amplifier, effectively controlling the power to the attached load based on the input signal. It is widely utilized in applications such as audio amplifiers and motor drivers.

Manufacturer

The BD681 is manufactured by ON Semiconductor, a global semiconductor company. ON Semiconductor specializes in providing a wide range of semiconductor solutions, including analog, discrete, and power management devices. The company serves various industries, such as automotive, communications, computing, consumer, and industrial sectors. It focuses on energy-efficient solutions and has a strong commitment to innovation in electronics, enhancing performance and sustainability across its product offerings.

Application

The BD681 is a power amplifier primarily used in audio applications, including home audio systems, musical instrument amplification, and public address systems. It is suitable for driving speakers in various consumer and professional audio equipment. Additionally, the BD681 can be utilized in automotive audio systems and other applications requiring high-performance amplification with low distortion.

Equivalent

The BD681 is a power amplifier transistor used primarily in audio applications. Equivalent products include the BD680, BD682, and other similar power transistors such as the TIP31, TIP32, and MPSU06. However, always check the specifications for exact current, voltage ratings, and other characteristics before substitution.

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