Allicdata Part #: | TL594CPW-ND |
Manufacturer Part#: |
TL594CPW |
Price: | $ 0.37 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC REG CTRLR MULT TOP 16TSSOP |
More Detail: | Buck, Boost, Flyback, Forward Converter, Full-Brid... |
DataSheet: | TL594CPW Datasheet/PDF |
Quantity: | 1000 |
900 +: | $ 0.34234 |
Frequency - Switching: | 1kHz ~ 300kHz |
Base Part Number: | TL594 |
Supplier Device Package: | 16-TSSOP |
Package / Case: | 16-TSSOP (0.173", 4.40mm 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: | Tube |
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TL594CPW is a DC/DC controller from Texas Instruments. It is typically used in applications such as synchronous buck and boost converters, AC-DC flyback, twostep rectifier circuits, LTCCs for output currents up to 5A. TL594CPW is one of TI’s most popular switching controllers with advanced features and a wide range of packages. It supports high-speed and low-EMI applications.
TL594CPW has low output RDS(on) drivers with current steering capability. It has optimized gate drives for better efficiency and high-frequency operation. It also has fast transient response with instantaneous adjustability to the changing load requirements. Moreover, TL594CPW has advanced protection features like programmable current limit and thermal shutdown. These features make the device a favorable choice for cost-effective design.
The operating principles of the TL594CPW are based on the fixed-frequency, pulse width modulation (PWM) mode for current or voltage regulation in the secondary side of the power converter. It has a built-in Oscillator which is used to set the fixed switching frequency(F SW) of the device. It also has two inputs for error amplifier and a latch comparator to sense the overvoltage/overcurrent conditions.
The block diagram of the TL594CPW is divided into three parts - Pulse Width Modulator(PWM), Error Amplifier and Latch Comparator. The PWM section controls the output current or voltage by driving the power Mosfet switches with a PWM signal generated by the on-board oscillator. This section also contains a trimable off-time element to control the current limit and a temperature sense circuit which provides a temperature compensated operating temperature range. The Error Amplifier section compares the output voltage with the voltage reference (Vref) and provides a signal to adjust the switching pulse width proportionally to the output voltage. The latch comparator is used to detect an overvoltage/overcurrent situation and turn off the power Mosfet switches accordingly.
In summary, the TL594CPW is an excellent choice for DC/DC conversions in various power supply applications. It is highly integrated and equipped with comprehensive protection features. Moreover, high-speed and low-EMI operations make it suitable for high-performance applications.
The specific data is subject to PDF, and the above content is for reference
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