ISL6741IBZ-T

DC DC Switching Controllers Overview

The ISL6741IBZ-T is a flexible double-ended voltage and current mode PWM controller designed for half-bridge, full-bridge, and push-pull power conversion topologies. It features an adjustable switching frequency up to 1MHz and supports synchronous rectification with clock synchronization capabilities. The device includes internal over-temperature protection, fault annunciation, and a bidirectional SYNC signal for noise-sensitive applications. Operating within a temperature range of -40°C to 105°C, it utilizes a 16-SOIC surface-mount package.

DC DC Switching Controllers Feature Summary

• Supports half-bridge, full-bridge, and push-pull configurations with precise duty cycle and deadtime control
• Features adjustable oscillator frequency, soft-start, and input undervoltage lockout
• Includes internal and system over-temperature protection with fault annunciation
• Provides bidirectional synchronization for paralleled units or external clock locking

DC DC Switching Controllers Applications

• Half-bridge power converters
• Full-bridge power converters
• Push-pull power converters

DC DC Switching Controllers Procurement Notes

Verify component authenticity through authorized Renesas distributors due to discontinued status. Confirm RoHS3 compliance and moisture sensitivity level (MSL 3) requirements for storage and handling. Validate that the 16-SOIC package dimensions match design constraints. Ensure supply chain stability as availability may be limited.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring current mode control in double-ended topologies. Consider the 1MHz maximum switching frequency and 83% duty cycle limit during design. Evaluate thermal management needs given the -40°C to 105°C operating range. Verify compatibility with synchronous rectifier drivers and external timing components.

DC DC Switching Controllers Part Context

The ISL6741 belongs to the ISL6740/ISL6741 family of low-power PWM controllers from Renesas Electronics Corporation. It serves as the current mode variant counterpart to the voltage mode ISL6740. Both devices share similar pinouts and feature sets, enabling flexible design choices for various isolated DC-DC converter architectures.

DC DC Switching Controllers Replacement Considerations

The ISL6740IBZ-T is a related part within the same family, offering voltage mode control instead of current mode. Designers should verify functional differences before substitution.