TL494CNSR

Frequency - Switching:	1kHz ~ 300kHz
Base Part Number:	TL494
Supplier Device Package:	16-SO
Package / Case:	16-SOIC (0.209", 5.30mm Width)
Operating Temperature:	0°C ~ 70°C (TA)
Control Features:	Dead Time Control, Frequency Control
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	No
Duty Cycle (Max):	45%
Series:	--
Voltage - Supply (Vcc/Vdd):	7 V ~ 40 V
Output Phases:	1
Number of Outputs:	2
Topology:	Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull
Output Configuration:	Positive
Function:	Step-Up, Step-Down, Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tape & Reel (TR)

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TL494CNSR Application Field and Working PrincipleThe TL494CNSR is a dc-dc switching controller that is used in applications such as voltage regulation, motor and solenoid control, and switching power supplies. The device can be used as a stand-alone controller, or in combination with secondary components, such as MOSFETs, and even connected to other active devices like Power Transistors. Its switching topology allows it to control a variety of power supplies ranging from a few watts to multiple kilowatts in industrial and automotive applications. The TL494CNSR is composed of two logic and control circuits; the oscillator and the pulse-width-modulated (PWM) output control. The oscillator uses an external resistor and capacitor to set the frequency of the switch. The PWM output is used to control the duty cycle of the switched power supply. The TL494CNSR regulates the output voltage to a predetermined level through a voltage feedback pin. The device also offers several protection features such as over-temperature protection, current limit and short circuit protection. The TL494CNSR is a great choice for applications that need to keep a very precise output voltage with a high accuracy. The device has low standby power consumption and excellent efficiency, making it ideal for large power supplies. Its wide input voltage range, from 4.5V to 40V makes it ideal for a variety of applications in both high and low voltage systems. The device is also compatible with a wide range of transistors, making it an excellent choice for lowESR MOSFET applications.The device is suitable for applications such as voltage regulators, motor and solenoid control, and high power supplies. It can also be used in automotive and industrial applications in which its high efficiency and precision output voltage are needed.To use the device, it must be connected to the power supply and its input voltage must be set within the range of 4.5V to 40V. The frequency can be adjusted by setting the value of the external resistor and capacitor. The pulse-width-modulation (PWM) output is then used to adjust the duty cycle of the switched power supply and the feedback pin is used to regulate the output voltage to the desired level.The TL494CNSR offers several protection features including over-temperature, current limit protection and short circuit protection. By connecting the over-temperature pin, the device can be disabled when the temperature reaches a certain threshold, protecting it from damage due to excessive heat. The current limit protection allows the device to limit the output current to a certain level, which is set using an external resistor. The short circuit protection prevents the device from damage due to a short circuit in the circuit.The TL494CNSR is a great choice for applications that need to keep a very precise output voltage with a high accuracy. Its wide input voltage range, from 4.5V to 40V makes it ideal for a variety of applications in both high and low voltage systems. Its low standby power consumption and excellent efficiency, making it ideal for large power supplies. Its compatibility with a wide range of transistors make it an excellent choice for low-ESR MOSFET applications. The device also offers several protection features such as over-temperature protection, current limit and short circuit protection. With the many advantages of this device, the TL494CNSR is certainly the best device for dc-dc switching applications.

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