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TL594IDR
+BOMIC REG CTRLR MULT TOP 16SOIC
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ManufacturerTexas Instruments
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Mfr. Part #TL594IDR
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Datasheet TL594IDR DataSheet
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Package SOIC-16
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In Stock1628
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Specifications
| Attribute | Value |
| 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) | 97% |
| Synchronous Rectifier | No |
| Clock Sync | No |
| Control Features | Dead Time Control, Frequency Control |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Overview
Description
Key features of the TL594IDR include a wide supply voltage range, low standby current, and the ability to control both single-ended and push-pull configurations. It supports various modulation methods, including voltage-mode and current-mode control. The IC operates over a temperature range of -40°C to 85°C, making it suitable for a variety of industrial and consumer applications.
Moreover, the TL594IDR is packaged in a SOIC-16 (Small Outline Integrated Circuit with 16 pins), allowing for compact PCB designs. Its robust functionality and adaptability make it a popular choice for engineers designing efficient power management systems.
Equivalent
1. LM494 from Texas Instruments
2. KA7500 from ON Semiconductor
3. SG3524 from Texas Instruments
4. UC3524 from Texas Instruments
5. TL594 from Texas Instruments (standard version, not just the IDR package)
These ICs share similar functionalities and can often be used interchangeably in similar circuit designs.
Features
1. PWM Control: Offers both voltage and current control for various power supply applications.
2. Dual Outputs: Can drive push-pull or parallel configurations, enhancing flexibility.
3. Dead-Time Control: Provides adjustable dead-time to avoid overlap in switching for efficient operation.
4. Variable Duty Cycle: Supports a range from 0% to 100%, enabling precise control.
5. Internal Reference: Features a stable 5V reference with ±1% accuracy for reliable operation.
6. Low Standby Current: Minimizes power consumption when inactive.
7. Built-in Flip-Flop: Synchronizes the output with the oscillator, ensuring stable operations.
8. Wide Supply Voltage Range: Operates between 7V to 40V, accommodating diverse applications.
9. Protection Features: Includes under-voltage lockout and short-circuit protection to enhance reliability.
10. Temperature Range: Suitable for industrial environments, operating between -40°C to 85°C.
These features make the TL594IDR suitable for various power management tasks, including DC-DC converters and motor speed control.
Pinout
1. VREF (Pin 14): Provides a stable 5V reference voltage.
2. IN+ and IN- (Pins 1 and 2): Non-inverting and inverting inputs of the error amplifier, respectively.
3. FEEDBACK (Pin 3): Used for feedback to control the PWM.
4. DTC (Pin 4): Dead-time control input to prevent overlap in the output transistors.
5. CT (Pin 5): Timing capacitor for setting the oscillation frequency.
6. RT (Pin 6): Timing resistor for setting the oscillation frequency.
7. GND (Pins 7 and 12): Ground connections.
8. C1 and C2 (Pins 8 and 11): Outputs for controlling the external transistors.
9. VCC (Pin 15): Supply voltage.
10. COMP (Pin 9): Compensation for the error amplifier.
11. E1 (Pin 10): Emitter connection for output transistor.
12. E2 (Pin 13): Emitter connection for output transistor.
13. ON/OFF (Pin 16): Controls the output stage operation.
The TL594IDR's flexibility in controlling PWM makes it suitable for various applications involving power regulation and management.
Manufacturer
Application
1. Switching Power Supplies: It is commonly used in AC-DC and DC-DC converters for efficient power regulation.
2. Motor Control: The device is employed in controlling motor speed and direction in applications such as fans and pumps.
3. Battery Chargers: It helps in managing battery charge cycles efficiently.
4. Lighting Systems: Used in dimming controls for LED and other lighting systems.
5. Inverters and UPS: Integral in designing uninterruptible power supplies and solar inverters for voltage regulation.
Its dual-output capability, adjustable duty cycle, and wide input voltage range make it suitable for various power management applications.