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Name: TL494CN
Brand: Texas Instruments
SKU: TL494CN
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Texas Instruments TL494CN

Part No.:: TL494CN

Manufacturer:: Texas Instruments

Package:: 16-DIP (0.300, 7.62mm)

Datasheet:: TL494CN.pdf

Description:: IC REG CTRLR MULT TOPOLOGY 16DIP

In Stock:: 2162

Quantity:: Add To Cart

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TL494CN Typical application Circuitry

TL494CN

The TL494CN is a specialized integrated circuit (IC) primarily employed for its Pulse Width Modulation (PWM) capabilities in power control applications. This article elucidates its core functionality, prevalent usage scenarios, key parameters, an elaborate circuit application, and essential considerations for circuit designers.

1. Principal Function: The TL494CN is adept at PWM control, crucial for effective power supply regulation by dynamically adjusting the PWM signal's duty cycle.

2. Application Domains: Predominantly utilized in DC-to-DC converters, switch-mode power supplies (SMPS), and motor control circuits, it finds its place across various sectors including consumer electronics, automotive technology, and industrial power systems.

3. Notable Specifications: Characteristic traits of the TL494CN encompass a versatile frequency range (typically 1 kHz to 300 kHz), dual error amplifiers for precise voltage adjustments, an operational voltage span of 7V to 40V, and integrated dead-time control for enhanced power efficiency.

4. Circuit Design - Switch-Mode Power Supply:

- Oscillator Frequency Setup: Configure the oscillator by connecting a resistor (Rt) to pin 6 and a capacitor (Ct) to pin 5.

- Error Amplifier Connections: Employ pins 1 and 2 to link the error amplifiers, pivotal for the voltage feedback mechanism.

- PWM Duty Cycle Modulation: Adjust the PWM signal via the dead-time control connected to pin 4.

- Output Arrangement: Utilize pins 8 and 11 for the output setup, capable of single-ended or dual-output modes.

- Power Inputs: Assign the supply voltage to pin 12, with pin 7 as the ground.

- Regulatory Feedback Loop: Implement a feedback route from the output to the error amplifiers to ensure stable voltage control.

5. Design Considerations:

- Heat Dissipation Strategies: Prioritize thermal management to prevent IC overheating.

- Voltage Range Compliance: Ensure that the circuit operates within the TL494CN's specified voltage boundaries.

- Load Fluctuation Planning: Design for variable load conditions to sustain output steadiness.

- Oscillation Frequency Maintenance: Keep the oscillator frequency stable for consistent power control.

Incorporating these design elements into a TL494CN-based circuit, particularly for a switch-mode power supply, can lead to a highly efficient and stable power management system. Tailoring the values of components like resistors and capacitors to fit the specific requirements of the application is crucial for optimal circuit functionality.

TL494CN information

TL494CN Specifications

Package/Case:
16-DIP (0.300, 7.62mm)
Packaging:
Tube
Series:
-
ProductStatus:
Active
OutputType:
Transistor Driver
Function:
Step-Up, Step-Down, Step-Up/Step-Down
OutputConfiguration:
Positive
Topology:
Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull
NumberofOutputs:
2
OutputPhases:
1
Voltage-Supply(Vcc/Vdd):
7V ~ 40V
Frequency-Switching:
1kHz ~ 300kHz
DutyCycle(Max):
45%
SynchronousRectifier:
No
ClockSync:
No
SerialInterfaces:
-
ControlFeatures:
Dead Time Control, Frequency Control
OperatingTemperature:
0°C ~ 70°C (TA)
MountingType:
Through Hole

TL494CN FAQ

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6. What is the process for return or replacement of TL494CN?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the TL494CN we delivered, we will accept the replacement or return of the TL494CN only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of TL494CN.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations