TDA21107

Current - Peak Output (Source, Sink):	--
Base Part Number:	TDA21107
Supplier Device Package:	PG-DSO-8
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 150°C (TJ)
Rise / Fall Time (Typ):	30ns, 40ns
High Side Voltage - Max (Bootstrap):	30V
Input Type:	Non-Inverting
Series:	CoreControl™
Logic Voltage - VIL, VIH:	--
Voltage - Supply:	10.8 V ~ 13.2 V
Gate Type:	N-Channel MOSFET
Number of Drivers:	2
Channel Type:	Synchronous
Driven Configuration:	Half-Bridge
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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TDA21107 Application Field and Working Principle

The TDA21107 integrated circuit, or IC, is a high-efficiency gate drive that has been designed for precision power, motor, and lighting control systems. Developed by STMicroelectronics, this AC/DC switching device is a versatile and efficient gate driver suitable for many applications. The integrated circuit contains multiple built-in safety features, as well as built-in low-V slope, variable speed, over-current, and phase-delay control options, making it a powerful and robust system that can be used in many different fields.

Application Field

The TDA21107 gate drive can be used in a variety of industrial, commercial, and consumer applications. Industrial applications include motion control, AC/DC inverter drives, solenoid and current control, and laser processing. Commercial applications include LED lighting, heating and air conditioning, power supply design, and water treatment. Consumer applications include consumer electronic devices, HVAC systems, and small motors. The TDA21107 is also suitable for automotive applications due to its durability and low power consumption. It can be used for speed control in vehicles with traction control, for braking systems, for engine control systems, for power steering, and for suspension adjustment.

Working Principle

The TDA21107 is an AC/DC switching device which functions by passing a small current through an integrated coil, which in turn produces a large voltage between the circuit’s source and sink. This large voltage can then be used to drive a load, providing necessary power to the device while also reducing losses. The gate drive contains four main functions responsible for its operation:

• Control Logic - This is responsible for controlling the amplitude of the gate current, timing of the switching signals, and sensing of the power supply voltage.
• Reverse Current Protection - This prevents large reverse currents from flowing between the load and power source, increasing the efficiency and lifespan of the device.
• Current Limit Protection - This prevents the flow of too much current from the power supply, which can cause damage to the device.
• Over-temperature Protection - This protects the device by dynamically limiting the output current when the temperature exceeds the threshold.

The gate driver has adjustable gate drive current and gate voltage ranges, which can be used to tailor the performance of the device for specific applications. This can be done by adjusting the peak gate current and the maximum allowed supply voltage simultaneously.The gate driver has been designed to reduce electrical noise and durable when compared to other ICs. It can handle higher levels of current and voltage, and is capable of operating at high frequencies. This makes it ideal for a wide range of applications, particularly those involving switching large currents, such as motor control, lighting control, and high-power supplies.

Conclusion

The TDA21107 integrated circuit is a versatile and powerful gate drive capable of many different applications. Designed by STMicroelectronics, it provides high-efficiency, safety, and durability, along with adjustable current and voltage ranges and adjustable peak gate current. This makes it suitable for use in many industrial, commercial, and consumer applications, such as motion control, AC/DC inverter drives, LED lighting, and HVAC systems.

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