TL594IPWR-837618123 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The TL594IPWR is a pulse-width modulation controller IC from Texas Instruments, a widely-used PWM control circuit for switch-mode power supply design. It features two error amplifiers, a precision 5V reference, and adjustable dead-time control with oscillator frequency up to 300kHz in a 16-pin TSSOP package. Available in tape-and-reel format from stock worldwide with competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- TL594IPWR-837618123 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Industry-standard PWM control IC with two independent error amplifiers for dual-loop voltage and current regulation in switch-mode power supplies
- On-chip precision 5V voltage reference and programmable oscillator operating up to 300kHz enabling flexible transformer-isolated and non-isolated converter designs
- Adjustable dead-time control and output stage compatible with both single-ended and push-pull power stage topologies
- 16-pin TSSOP (TSSOP-16) package in tape-and-reel (PWR) format for automated assembly in high-volume production
Applications
The TL594IPWR is a cornerstone controller for designing flyback, forward, and push-pull switch-mode power supplies in industrial equipment, telecommunications infrastructure, and computing power delivery systems. Its dual error amplifier architecture supports simultaneous voltage and current mode regulation loops, enabling well-regulated outputs with fast transient response for demanding load conditions. It is also widely used in educational and prototype power supply designs due to its comprehensive integration of all core PWM control functions in a single compact IC.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the TL594IPWR used for?
The TL594IPWR is a PWM controller IC used as the primary control element in switch-mode power supplies (SMPS), including flyback, forward converter, and push-pull topologies. It integrates two error amplifiers, a 5V precision reference, oscillator, dead-time control, and output drivers, enabling a complete PWM control function in a single 16-pin IC.
What is the maximum switching frequency supported by the TL594IPWR?
The TL594 family oscillator can be programmed up to approximately 300kHz by selecting appropriate external resistor and capacitor values. Higher switching frequencies allow smaller magnetic components and output filtering capacitors, making it suitable for compact and high power-density SMPS designs in industrial and computing applications.
What package does the TL594IPWR come in?
The TL594IPWR is housed in a 16-pin TSSOP package (the PWR suffix indicates TSSOP packaging) and is supplied in tape-and-reel format for automated SMT assembly. This surface-mount package offers a smaller PCB footprint compared to the traditional 16-pin DIP version (TL594IN), making it preferred for modern compact power supply board designs.
What output modes does the TL594IPWR support?
The TL594IPWR output transistors can be configured for single-ended operation (both collectors tied together) or push-pull operation (outputs switching alternately at half the oscillator frequency). The output mode is selected via the output control input pin, providing design flexibility for driving both single-switch and dual-switch power stage topologies.
What are common alternatives to the TL594IPWR?
Pin-compatible and functionally equivalent alternatives include the KA7500 (Samsung/Fairchild), SG3525A (ON Semiconductor, with slight differences in soft-start and error amplifier configuration), and UC2842/3842 (for current-mode control). The TL594 itself is available in multiple package variants: TL594IN (DIP-16) and TL594CDR (SOIC-16), so verify the pinout and supply voltage range when substituting.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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