TDA21106

Current - Peak Output (Source, Sink):	4A, 4A
Base Part Number:	TDA21106
Supplier Device Package:	PG-DSO-8
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-25°C ~ 150°C (TJ)
Rise / Fall Time (Typ):	20ns, 15ns
High Side Voltage - Max (Bootstrap):	45V
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Part Status:	Obsolete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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TDA21106 is a high-performance gate driver made by ST Microelectronics. It is used to control the switching of three-phase brushless dc motors, typically up to 3.2 amps. It works by providing a controlled current to the gate of a MOSFET in order to switch it on and off.The TDA21106 has several features and characteristics that make it a suitable driver for motor control applications. It is suitable for high- and low-current switches, has a wide operating voltage range of 6V to 26V, a current limit of 3.16A, and provides number of on-board protection features such as current protection, latch-up protection, and thermal shutdown.The TDA21106 can be used to drive both double-digit and unipolar motors with the same device. To control double-digit motors, the device has an internal logic circuit which provides a signal to the gate driver depending on whether the driver is in an active or inactive state. This signal is then used to control the speed and direction of the motor.The TDA21106 also provides an internal charge pump to drive the gate driver with high-current transistors, allowing it to switch faster and to drive high-inductance loads, while still providing a low switching noise and signal integrity. In addition, it has an internal clock oscillator and a low-power standby mode.The TDA21106 can be implemented in various motor control applications, such as motor speed and position control, regenerative braking, self-locking, speed and torque control, and current detection and control. This driver is also suitable for other motor control applications such as starter motor control, soft start, over-current protection and dynamic braking.The working principle of TDA21106 is simple. It provides a controlled current to the gate of MOSFET in order to switch it on and off. This current is adjusted according to the logic signals received from the driver\'s internal logic block. The device provides protection by monitoring the current, the voltage, and the temperature and can interface with control systems such as MCU and DSP’s.The TDA21106 is a very reliable and cost-effective solution for high-current motor control applications. It is ideal for fast switching motors with high-inductance loads, providing low switching noise and signal integrity. The device also provides protection features like thermal shutdown and current protection, making it a suitable driver for motor control applications.

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