TL594CPWRG4 Equivalent & Substitute Parts

Part Overview

The TL594CPWRG4 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 converter topologies with positive output configuration. The device is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement.

Substiute Parts

TL594CPWRG4

Texas InstrumentsIn Stock: 2813TL594CPWRG4 Datasheet

Current PartRFQ

TL594CPWR

Texas InstrumentsIn Stock: 5906TL594CPWR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TL594CPWRG4 is determined by strict equivalence across the following critical parameters:

• Base Product Number: TL594
• Package / Case: 16-TSSOP (0.173", 4.40mm Width)
• Voltage - Supply (Vcc/Vdd): 7V ~ 40V
• Frequency - Switching: 1kHz ~ 300kHz
• Duty Cycle (Max): 97%
• Output Type: Transistor Driver
• Function: Step-Up, Step-Down, Step-Up/Step-Down
• Output Configuration: Positive
• Topology Support: Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull
• Number of Outputs: 2
• Output Phases: 1
• Control Features: Dead Time Control, Frequency Control
• Operating Temperature: 0°C ~ 70°C (TA)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The primary difference between the main part and its substitute is the packaging format: the TL594CPWRG4 is supplied in tube packaging, while the TL594CPWR is supplied in Tape & Reel (TR) format. Both parts are electrically and mechanically identical.

Parameter Comparison

Engineering Selection Recommendations

The TL594CPWR is a direct electrical and mechanical equivalent to the TL594CPWRG4. Both parts share identical electrical specifications, pin configurations, and functional capabilities. The TL594CPWR maintains active product status at Texas Instruments, ensuring continued availability and support.

Selection between these parts is determined by procurement requirements: the TL594CPWR in Tape & Reel format is suitable for automated assembly processes, while the TL594CPWRG4 tube packaging is discontinued. For new designs or ongoing production, the TL594CPWR is the appropriate choice.

Both parts comply with ROHS3 and REACH requirements, with MSL rating of 1 (Unlimited), indicating no moisture sensitivity constraints during storage and handling.

Frequently Asked Questions (FAQ)

Q: Can the TL594CPWR directly replace the TL594CPWRG4 in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format: TL594CPWRG4 uses tube packaging, while TL594CPWR uses Tape & Reel format. Pin configuration, electrical performance, and functional capabilities are identical.

Q: What is the difference between tube and Tape & Reel packaging?

A: Tube packaging is used for manual or low-volume assembly, while Tape & Reel packaging is designed for automated pick-and-place assembly equipment. Both contain the same die and provide identical electrical performance.

Q: Are there any thermal or performance differences between these parts?

A: No. Both parts operate across the same temperature range (0°C ~ 70°C) and support identical switching frequencies (1kHz ~ 300kHz), duty cycles (97% max), and supply voltage ranges (7V ~ 40V).

Q: Why is the TL594CPWRG4 discontinued?

A: The TL594CPWRG4 is discontinued at DiGi Electronics. The TL594CPWR remains in active production and is the recommended substitute for ongoing procurement.

Q: Do both parts support the same converter topologies?

A: Yes. Both the TL594CPWRG4 and TL594CPWR support Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, and Push-Pull topologies with identical control features including Dead Time Control and Frequency Control.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical MSL rating of 1 (Unlimited).