TPS2814P

Logic Voltage - VIL, VIH:	1V, 4V
Current - Peak Output (Source, Sink):	2A, 2A
Input Type:	Inverting, Non-Inverting
Rise / Fall Time (Typ):	14ns, 15ns
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Through Hole
Package / Case:	8-DIP (0.300", 7.62mm)
Supplier Device Package:	8-PDIP
Base Part Number:	TPS2814
Series:	--
Packaging:	Tube
Part Status:	Active
Driven Configuration:	Low-Side
Channel Type:	Synchronous
Number of Drivers:	2
Gate Type:	N-Channel, P-Channel MOSFET
Voltage - Supply:	4 V ~ 14 V

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TPS2814P Application Field and Working Principle

The TPS2814P is a high-performance, low-side gate driver IC that provides an integrated bipolar drive for small motors in power management integrated circuits (PMICs). It is widely used in automotive and industrial applications. The device integrates the necessary circuitry to drive both positive and negative sides of a small motor load, including a PMOS transistor for the high-side power switch, a bipolar driver for the low-side power switch, and a low-dropout (LDO) regulator to provide power to the device.The TPS2814P comprises an integrated full-bridge gate driver, which features a PMOS and NMOS switch in combination with a bipolar driver. The PMOS device, commonly referred to as the high-side switch, is used to control the power supply and provide a high-side current. The NMOS device, or low-side switch, is used to control the ground side of the motor. The bipolar driver is used to drive the control signals of the two switches and actuate the functions of the PMOS and NMOS switches. The gate driver also integrates a low-dropout (LDO) regulator, which provides power to the gate driver, allowing it to operate with a single supply.The TPS2814P gate driver can operate over a wide input voltage range (2.5V to 42V) and a low RDS(ON) (drain-source on-resistance), which ensures a low level of power-delivered to the motor load. The wide operating range of the TPS2814P gate driver allows for the use of a single device for multiple applications. In addition, the wide operating range of the TPS2814P gate driver allows for the use of different overall system power levels.The TPS2814P gate driver also features a programmable frequency with a wide range (2 kHz to 16 kHz). This frequency range allows the user to adjust the switching frequency of the power switch, depending on the desired power level and the overall motor performance. The fast switching capability of the TPS2814P gate driver allows for the power switch to be actuated quickly, providing a high-level response and high efficiency within the overall system.The TPS2814P gate driver also provides an adjustable current limit (IQ) and dead time (TD) for peak-current limiting, and a low-side inrush current limit (ICL). These features enable the user to program the current limits, providing a controlled peak current that can be used to protect vulnerable parts from damage. The adjustable current limit helps to prevent the motor load from stalling, and the adjustable dead time helps to minimize electromagnetic interference (EMI).The TPS2814P gate driver is also equipped with various pin options, including the gate voltage pin, gate voltage sense pin, low-side inrush current limit pin, and ground pins. These pin options provide flexibility in the application, allowing the user to adjust the voltage of the gate driver, sense the voltage of the gate driver, monitor the current of the gate driver, and ensure a low level of interference.In conclusion, the TPS2814P gate driver is an integrated unit that provides an integrated bipolar drive for small motors in power management integrated circuits (PMICs). It provides a wide input voltage range, a programmable switching frequency, adjustable current limit, adjustable dead time, and various pin options, making it ideal for automotive and industrial applications.

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