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TL494CNSR
+NomenclatureIC REG CTRLR MULT TOPOLOGY 16SO
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FabricantTexas Instruments
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Pièce fabricant #TL494CNSR
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Package SOP-16
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En stock4311
365 Garantie qualité 24h/24
7*24 Garantie de service 24h/24
90-Garantie après-vente 24h/24
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Spécifications
| Attribut | Valeur |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Part Status | Active |
| Output Type | Transistor Driver |
| Function | Step-Up, Step-Down, Step-Up/Step-Down |
| Output Configuration | Positive |
| Topology | Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull |
| Number of Outputs | 2 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 7V ~ 40V |
| Frequency - Switching | 1kHz ~ 300kHz |
| Duty Cycle(Max) | 45% |
| Synchronous Rectifier | No |
| Clock Sync | No |
| Control Features | Dead Time Control, Frequency Control |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Mounting Type | Surface Mount |
Présentation
Description
The TL494CNSR allows for precise control of output voltage and current, enhancing efficiency and performance in systems. It supports push-pull and single-ended power supply designs. By offering flexibility in configuration, it enables designers to optimize their power solutions for specific needs. Its compact design and array of features make it suitable for use in a variety of applications, including DC-DC converters, motor speed controllers, and other power management systems.
Equivalent
Features
1. PWM Control: Offers PWM control with adjustable dead-time, enabling precise regulation of output voltage and current.
2. Dual Output: Provides two error amplifiers, allowing for flexible configuration and increased system control.
3. Dead-Time Control: Adjustable dead-time control for protecting circuits from cross-conduction.
4. Reference Voltage: Includes a stable 5V reference voltage for consistent performance and reliability.
5. Oscillator: Built-in oscillator with an adjustable frequency range, enhancing design flexibility.
6. Low Standby Current: Designed for minimal power consumption in standby mode, improving efficiency.
7. Protection: Features overvoltage protection and error flags to enhance system safety and reliability.
8. Temperature Range: Operates within a broad temperature range, making it suitable for various environments.
9. Package Type: Comes in an 16-pin SOIC package, facilitating compact circuit design.
These features make the TL494CNSR a robust choice for designing efficient and reliable power supplies.
Pinout
1. GND (Pin 7): Ground reference for the IC.
2. VCC (Pin 12): Supply voltage input.
3. COMP (Pin 3): Compensation, used for feedback loop compensation.
4. FEEDBACK (Pin 2): Error amplifier input for feedback voltage.
5. CT (Pin 5): Timing capacitor connection for setting oscillator frequency.
6. RT (Pin 6): Timing resistor connection for frequency setting.
7. DTC (Pin 4): Dead-time control, adjusts dead-time between output transitions.
8. IN+ (Pins 1, 16): Non-inverting inputs for the error amplifiers.
9. IN- (Pins 15, 9): Inverting input for the error amplifiers.
10. OUTPUT A/B (Pins 8, 11): PWM outputs, driving the different phases.
11. E1, E2 (Pins 13, 14): Transistor emitters for output transistors.
12. VREF (Pin 14): Reference voltage output.
The TL494's configurability and reliable performance make it a popular choice for various applications.