ISL6740IV

DC DC Switching Controllers Overview

The ISL6740IV is a synchronous rectifier DC-DC switching controller IC manufactured by Renesas Electronics Corporation. It supports full-bridge, half-bridge, and push-pull topologies with two output channels. The device operates within a supply voltage range of 9V to 16V and features a maximum switching frequency of 1MHz. It offers a maximum duty cycle of 83% and includes control characteristics such as enable, frequency control, and soft start. The component is housed in a 16-TSSOP package and is rated for an operating temperature range of -40°C to 105°C.

DC DC Switching Controllers Feature Summary

• Supports synchronous rectification for improved efficiency in power conversion applications.
• Provides clock synchronization capability for multi-phase or parallel system operation.
• Integrates soft-start functionality to manage inrush current during startup sequences.

DC DC Switching Controllers Applications

• Server and workstation power supplies
• Telecommunications equipment
• Industrial power systems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'IV' against the official datasheet to confirm package dimensions and tape-and-reel specifications. Confirm RoHS compliance status, as this variant may not meet current environmental directives. Check for obsolescence notices from Renesas, as the part status is listed as discontinued. Ensure the supplier provides valid traceability documentation for quality assurance purposes.

DC DC Switching Controllers Selection Notes

Select this controller when designing isolated flyback, forward, bridge, or push-pull converters requiring synchronous rectification. Consider the 16-TSSOP package constraints for PCB layout. Evaluate the 1MHz switching frequency limit against thermal requirements. Verify that the external components support the 9V-16V Vcc range and that the load profile matches the controller's drive capabilities.

DC DC Switching Controllers Part Context

The ISL6740 belongs to a family of high-performance PWM controllers designed for isolated power stages. It is often paired with complementary drivers or integrated into complete power modules. This specific model focuses on synchronous rectification control, distinguishing it from non-synchronous variants in the same series.

DC DC Switching Controllers Replacement Considerations

Consult Renesas official substitution guides for direct pin-compatible alternatives. Verify electrical parameter equivalence for any cross-brand replacements. No public substitute part numbers are confirmed in the provided data.