ISL6741IB Equivalent & Substitute Parts

Part Overview

The ISL6741IB is a Full-Bridge, Half-Bridge, and Push-Pull Regulator controller IC manufactured by Renesas Electronics Corporation, designed for positive, isolation-capable output Step-Up/Step-Down DC-DC applications. This device operates as a transistor driver with integrated control features including enable, frequency control, and soft start functionality.

The ISL6741IB is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support long-term product availability for applications currently utilizing this controller.

Substiute Parts

ISL6741IB

Renesas Electronics CorporationIn Stock: 2106ISL6741IB Datasheet

Current PartRFQ

ISL6741IVZ

IntersilIn Stock: 2125ISL6741IVZ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ISL6741IB are identified based on functional and electrical equivalence across the following critical parameters:

• Output Type: Transistor Driver
• Function: Step-Up/Step-Down DC-DC control
• Output Configuration: Positive, Isolation Capable
• Topology: Full-Bridge, Half-Bridge, Push-Pull support
• Number of Outputs: 2
• Output Phases: 1
• Voltage - Supply (Vcc/Vdd): 9V ~ 16V
• Frequency - Switching: Up to 1MHz
• Duty Cycle (Max): 83%
• Synchronous Rectifier: Yes
• Clock Sync: Yes
• Control Features: Enable, Frequency Control, Soft Start
• Operating Temperature: -40°C ~ 105°C (TA)

The ISL6741IVZ qualifies as a functional substitute based on matching all electrical and control specifications. The primary difference is packaging format: the substitute uses 16-TSSOP (0.173", 4.40mm Width) versus the original 16-SOIC (0.154", 3.90mm Width) package.

Parameter Comparison

Engineering Selection Recommendations

The ISL6741IVZ is electrically and functionally equivalent to the ISL6741IB across all specified control and power management parameters. The substitute part is manufactured by Intersil and maintains active product status, ensuring ongoing availability and supply chain support.

The primary consideration for implementation is package compatibility. The ISL6741IVZ uses a 16-TSSOP package format compared to the original 16-SOIC format. PCB layout modifications are required to accommodate the different package footprint and pin spacing. Both packages are surface-mount configurations with identical pin counts and electrical functionality.

The ISL6741IVZ carries the same ECCN (EAR99) and HTSUS (8542.39.0001) classifications as the original part, maintaining regulatory consistency for export and tariff purposes.

Frequently Asked Questions (FAQ)

Q: Can the ISL6741IVZ be used as a direct replacement for the ISL6741IB without PCB modifications?

A: No. While electrically equivalent, the ISL6741IVZ uses a 16-TSSOP package versus the original 16-SOIC package. PCB layout changes are required to accommodate the different footprint dimensions and pin spacing.

Q: Are the electrical specifications identical between ISL6741IB and ISL6741IVZ?

A: Yes. Both parts share identical specifications for supply voltage (9V ~ 16V), switching frequency (up to 1MHz), duty cycle (83% max), output configuration, topology support, and control features.

Q: What is the significance of the ISL6741IB being classified as obsolete?

A: Obsolete status indicates the part is no longer manufactured by Renesas Electronics Corporation. The ISL6741IVZ, with active product status, provides continued availability for new designs and replacement applications.

Q: Are there any compliance or certification differences between the two parts?

A: Both parts share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications. Compliance documentation should be reviewed for specific application requirements.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is based on matching output type (transistor driver), function (step-up/step-down), output configuration (positive, isolation capable), topology support (full-bridge, half-bridge, push-pull), number of outputs (2), supply voltage range (9V ~ 16V), switching frequency (up to 1MHz), duty cycle (83%), and control features (enable, frequency control, soft start).