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TL494BDR2G
IC REG CTRLR BCK/PSH-PULL 16SOIC
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規格
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | SWITCHMODE™ |
| ProductStatus | Active |
| OutputType | Transistor Driver |
| Function | Step-Down, Step-Up/Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck, Push-Pull |
| NumberofOutputs | 2 |
| OutputPhases | 1 |
| Voltage-Supply(Vcc/Vdd) | 7V ~ 40V |
| Frequency-Switching | 200kHz |
| DutyCycle(Max) | 48% |
| SynchronousRectifier | Yes |
| ClockSync | No |
| ControlFeatures | Dead Time Control, Frequency Control |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 16-SOIC (0.154, 3.90mm Width) |
概述
Description
The TL494BDR2G is a versatile pulse-width modulation (PWM) control circuit designed for controlling switching power supplies and DC-DC converters. Manufactured by ON Semiconductor, it is part of the TL494 series, widely used for its robust performance and flexibility. This integrated circuit offers dual error amplifiers, an on-chip oscillator, and a dead-time control comparator, all essential for efficient power supply regulation.
Key features of the TL494BDR2G include a wide input voltage range, low standby current, and variable duty cycle control. It supports both single-ended and push-pull configurations, making it adaptable to various power supply designs. The PWM controller achieves precise regulation through feedback provided by the error amplifiers, which compare the output voltage to a reference voltage.
The TL494BDR2G is commonly used in applications like power inverters, chargers, and other electronic devices requiring efficient power management. Its compact design, typically in an SOIC-16 package, allows for integration into space-constrained applications. Overall, the TL494BDR2G is a reliable component for designing energy-efficient power supply systems.
Key features of the TL494BDR2G include a wide input voltage range, low standby current, and variable duty cycle control. It supports both single-ended and push-pull configurations, making it adaptable to various power supply designs. The PWM controller achieves precise regulation through feedback provided by the error amplifiers, which compare the output voltage to a reference voltage.
The TL494BDR2G is commonly used in applications like power inverters, chargers, and other electronic devices requiring efficient power management. Its compact design, typically in an SOIC-16 package, allows for integration into space-constrained applications. Overall, the TL494BDR2G is a reliable component for designing energy-efficient power supply systems.
Features
The TL494BDR2G is a versatile PWM (Pulse Width Modulation) controller IC designed for power supply control applications. Key features include:
1. Dual-Output PWM Control: It has two error amplifiers, a PWM comparator, and a flip-flop for precise control of two outputs.
2. Adjustable Dead-Time Control: Enables optimization of switching characteristics and power efficiency.
3. Internal Circuitry: Includes an on-chip voltage reference, oscillator, error amplifier, and output control logic.
4. Wide Supply Voltage Range: Operates efficiently over a wide voltage range, enhancing its applicability across different systems.
5. High Frequency: Capable of operating at frequencies up to 500 kHz to accommodate various design needs.
6. Output Control: Provides flexibility with single-ended or push-pull configurations.
7. Low Standby Current: Optimizes energy efficiency when the device is idle.
8. Thermal Stability: Designed to operate reliably under varying temperature conditions.
The TL494BDR2G is ideal for use in switch-mode power supplies (SMPS), DC-DC converters, and other applications requiring high-precision and efficient PWM control.
1. Dual-Output PWM Control: It has two error amplifiers, a PWM comparator, and a flip-flop for precise control of two outputs.
2. Adjustable Dead-Time Control: Enables optimization of switching characteristics and power efficiency.
3. Internal Circuitry: Includes an on-chip voltage reference, oscillator, error amplifier, and output control logic.
4. Wide Supply Voltage Range: Operates efficiently over a wide voltage range, enhancing its applicability across different systems.
5. High Frequency: Capable of operating at frequencies up to 500 kHz to accommodate various design needs.
6. Output Control: Provides flexibility with single-ended or push-pull configurations.
7. Low Standby Current: Optimizes energy efficiency when the device is idle.
8. Thermal Stability: Designed to operate reliably under varying temperature conditions.
The TL494BDR2G is ideal for use in switch-mode power supplies (SMPS), DC-DC converters, and other applications requiring high-precision and efficient PWM control.
Package
The TL494BDR2G is a PWM controller IC commonly used for power supply applications. It is available in a surface-mount package format, specifically the SOIC-16 (Small Outline Integrated Circuit with 16 pins). This package type is designed for compactness and ease of assembly on printed circuit boards.
Pinout
The TL494BDR2G is a pulse-width modulation (PWM) controller integrated circuit used for power supply regulation. It typically comes in a 16-pin package. The main functions of the TL494 include voltage regulation, output voltage monitoring, and frequency control. Here's a brief overview of its pin functions:
1. Comparator Inputs (Pins 1, 2, 15, 16): Used for error voltage input and feedback.
2. Dead-Time Control (Pin 4): Sets the dead-time for PWM switching.
3. Feedback (Pin 3): Receives feedback from the output to maintain regulation.
4. Output Control (Pin 13): Determines the configuration of the output stage.
5. Collector Outputs (Pins 8, 11): Complementary PWM outputs.
6. Emitter Outputs (Pins 9, 10): Common outputs derived from the collector.
7. Timing Capacitor (Pin 5) and Timing Resistor (Pin 6): Set the oscillator frequency.
8. GND (Pin 7): Ground connection.
9. VCC (Pin 12): Supply voltage input.
10. Reference Voltage (Pin 14): Provides a stable reference voltage for other components in the circuit.
The TL494 is commonly used in applications like power supplies, battery chargers, and DC-DC converters.
1. Comparator Inputs (Pins 1, 2, 15, 16): Used for error voltage input and feedback.
2. Dead-Time Control (Pin 4): Sets the dead-time for PWM switching.
3. Feedback (Pin 3): Receives feedback from the output to maintain regulation.
4. Output Control (Pin 13): Determines the configuration of the output stage.
5. Collector Outputs (Pins 8, 11): Complementary PWM outputs.
6. Emitter Outputs (Pins 9, 10): Common outputs derived from the collector.
7. Timing Capacitor (Pin 5) and Timing Resistor (Pin 6): Set the oscillator frequency.
8. GND (Pin 7): Ground connection.
9. VCC (Pin 12): Supply voltage input.
10. Reference Voltage (Pin 14): Provides a stable reference voltage for other components in the circuit.
The TL494 is commonly used in applications like power supplies, battery chargers, and DC-DC converters.
Manufacturer
The TL494BDR2G is manufactured by ON Semiconductor, which is now known as onsemi. Onsemi is a semiconductor supplier company that produces a wide range of products including power management, analog, sensors, logic, timing, connectivity, discrete, and custom devices. The company is headquartered in Phoenix, Arizona, and serves various markets such as automotive, industrial, communication, computing, and consumer electronics. As a leading semiconductor manufacturer, onsemi focuses on providing energy-efficient solutions to support sustainable technology advancements.
Application
The TL494BDR2G is primarily used in applications such as switch-mode power supplies, DC-DC converters, and voltage regulation systems. It is widely employed in power management for computers, telecommunications, and industrial control systems due to its ability to provide efficient and stable power conversion. Its integrated control functions make it suitable for pulse-width modulation (PWM) control and power switching applications.
Equivalent
The TL494BDR2G is a PWM controller commonly used in power supply circuits. Equivalent products include the KA7500C, SG3525A, and UC3842A. These integrated circuits share similar functionality, such as PWM control and voltage regulation, but it's crucial to verify specifications and pin configurations to ensure compatibility with your application.
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