ISL6840IBZ

Power Supply Controllers, Monitors Overview

The ISL6840IBZ is a single-ended Pulse-Width Modulation (PWM) current mode controller manufactured by Renesas Electronics Corporation. It operates within an input voltage range of 9V to 16V and supports switching frequencies up to 2MHz. The device features a maximum duty cycle of 48% and provides a peak output drive current of 1A. It functions reliably across an extended temperature range from -40°C to +105°C. Packaged in an 8-SOIC surface-mount format, it consumes a supply current of 5.5mA during operation.

Power Supply Controllers, Monitors Feature Summary

• Implements peak current mode control for effective handling of power transients and inherent overcurrent protection capabilities.
• Utilizes advanced BiCMOS design technology to achieve significantly improved performance compared to industry standard alternatives.
• Features low operating current with a minimal 60µA start-up current requirement for efficient power management.

Power Supply Controllers, Monitors Applications

• Boost converter configurations
• Flyback converter topologies
• Isolated output power supplies

Power Supply Controllers, Monitors Procurement Notes

Verify component authenticity through authorized channels due to potential availability constraints. Confirm RoHS compliance status and specific package markings against official datasheets. Check for obsolescence notices or lifecycle changes prior to finalizing procurement plans. Ensure storage conditions meet moisture sensitivity level requirements to maintain reliability.

Power Supply Controllers, Monitors Selection Notes

Select this controller for applications requiring adjustable frequency operation up to 2MHz with high peak current drive capability. Consider its pin compatibility with the industry-standard 384x family if migrating existing designs. Evaluate the 20ns rise and fall times for high-speed switching requirements. Assess thermal performance within the specified -40°C to +105°C operating range.

Power Supply Controllers, Monitors Part Context

The ISL6840IBZ belongs to the ISL684x family of adjustable frequency, low-power PWM controllers. This series includes variants such as the ISL6841, ISL6842, ISL6843, and ISL6844, designed for diverse power conversion needs. The family shares common architectural features optimized for efficiency and transient response in industrial and commercial power systems.

Power Supply Controllers, Monitors Replacement Considerations

The ISL6840IBZ is pin-compatible with the industry-standard 384x family of controllers. Designers transitioning from legacy parts should verify electrical parameter alignment. No direct substitute part numbers are confirmed in public documentation; consult manufacturer cross-reference guides for equivalent solutions.