TL594IPWRG4 Equivalent & Substitute Parts

Part Overview

The TL594IPWRG4 is a Power Management IC (PMIC) functioning as a multi-topology DC-DC controller. It supports Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, and Push-Pull topologies with positive output configuration. The device is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing design support and procurement.

Substiute Parts

TL594IPWRG4

Texas InstrumentsIn Stock: 988TL594IPWRG4 Datasheet

Current PartRFQ

TL594IPWR

Texas InstrumentsIn Stock: 47219TL594IPWR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TL594IPWRG4 is determined by strict equivalence across the following critical parameters:

• Manufacturer and Base Product Number: Texas Instruments TL594 series
• Package Type: 16-TSSOP form factor with identical 0.173" width and 4.40mm dimensions
• Electrical Specifications: Voltage supply range (7V ~ 40V), switching frequency (1kHz ~ 300kHz), duty cycle (97% max), and control features (Dead Time Control, Frequency Control)
• Functional Topology: Support for Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, and Push-Pull configurations
• Output Configuration: Positive output with 2 outputs, 1 phase, transistor driver output type
• Compliance: ROHS3 compliance, MSL 1, REACH unaffected status

The TL594IPWR meets all these criteria and serves as a direct parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

The TL594IPWR is the appropriate substitute for the discontinued TL594IPWRG4. Both parts are manufactured by Texas Instruments and share identical electrical specifications, package dimensions, and functional capabilities. The TL594IPWR maintains active product status, ensuring ongoing availability and supply chain continuity. Both parts comply with ROHS3 standards and carry MSL 1 moisture sensitivity ratings, meeting equivalent environmental and regulatory requirements. The difference in packaging designation (Cut Tape & Digi-Reel for TL594IPWR versus the original packaging) does not affect electrical or mechanical compatibility. Selection of the TL594IPWR eliminates obsolescence risk while preserving full design compatibility.

Frequently Asked Questions (FAQ)

Q: Can the TL594IPWR be used as a direct replacement for the TL594IPWRG4?

A: Yes. Both parts are identical in electrical specifications, package type (16-TSSOP), and functional topology support. The TL594IPWR is the active equivalent.

Q: Are there any pin configuration differences between these parts?

A: No. Both parts use the 16-TSSOP package with identical pin assignments and electrical characteristics.

Q: Does the packaging format (Cut Tape & Digi-Reel) affect circuit performance?

A: No. Packaging format refers only to the delivery method and does not affect the electrical or mechanical properties of the component itself.

Q: What is the primary reason to substitute the TL594IPWRG4?

A: The TL594IPWRG4 is discontinued at DiGi Electronics. The TL594IPWR maintains active status and identical specifications, ensuring continued availability and design compatibility.

Q: Are compliance certifications equivalent between these parts?

A: Yes. Both parts carry ROHS3 compliance, MSL 1 rating, and REACH unaffected status.

Q: Can both parts support the same DC-DC converter topologies?

A: Yes. Both support Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, and Push-Pull topologies with identical operating parameters.