FOD8321

Current - Output High, Low:	2A, 2A
Approvals:	UL
Supplier Device Package:	5-SOP
Package / Case:	6-SOIC (0.346", 8.80mm Width), 5 Leads
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 100°C
Voltage - Supply:	16 V ~ 30 V
Current - DC Forward (If) (Max):	25mA
Voltage - Forward (Vf) (Typ):	1.5V
Current - Peak Output:	3A
Series:	--
Rise / Fall Time (Typ):	60ns, 60ns
Pulse Width Distortion (Max):	300ns
Propagation Delay tpLH / tpHL (Max):	500ns, 500ns
Common Mode Transient Immunity (Min):	20kV/µs
Voltage - Isolation:	5000Vrms
Number of Channels:	1
Technology:	Optical Coupling
Part Status:	Active
Packaging:	Tube

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Isolators - Gate Drivers: FOD8321 Application Field and Working Principle

The FOD8321 gate driver is an optically isolated module designed to provide galvanic isolation to dc motors and other motion control applications. This device isolates the input signal from the motor, thus providing galvanic isolation between the input signal and the flange actuator. It also isolates the power supply from the motor, preventing power leakage and voltage drop.The FOD8321 is designed to accommodate dc motors and actuators up to three amps. Its logic input interface accepts a wide range of input signal types and logic levels including 0V~5V, 0V~10V or 0V~15V. The device supports forward and reverse logic, and has a user selectable control logic feature, allowing the same logic input for various control signals. The device supports both PWM and TTL logic signals, and includes an enable/disable control in the form of an open drain output. The enable input (EN) is also optically isolated for noise immunity.The FOD8321 includes a highly efficient drive stage which provides an output current of up to three amps (depending on the power supply voltage). The device includes programmable features such as fan speed control and motor braking which can be implemented through simple configuration modifications. The FOD8321 also includes a non-volatile storage element, allowing it to maintain the last known speed setting across power cycles.The FOD8321 offers a wide range of features including adjustable soft-start, current limiting and thermal protection. These features ensure that the motor is adequately protected against over-current and excessive heating. The device also has an integrated over-voltage protection circuit which disables the gate driver output in the event of an over-voltage condition.The FOD8321 is compatible with a wide range of dc motors and actuators from many leading vendors. It is suitable for use in a variety of applications including brushless dc motorists, disk drives, and window actuators. The device provides a reliable, cost-effective solution for motion control applications.Overall, the FOD8321 gate driver is an ideal solution for motion control applications requiring galvanic isolation. It provides optimal performance, reliability, and cost-effectiveness. The device provides flexibility through its wide input and output range and adjustable features, making it the perfect choice for a variety of motion control applications.

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