ISL58315CRTZ

Overview

The ISL58315CRTZ is a high-speed, triple-output laser diode driver designed for laser scanning projector systems requiring three channels modulated at high speed with independent current control. It supports up to 720-pixel HD resolution and delivers up to 1A of peak current output. The device features fast switching speeds with pulse rise/fall times of 1ns to 2ns. It includes an integrated heater function for SHG green lasers and operates on a single 3.3V supply with a 1.8V video interface compatible design.

Feature Summary

• Patented laser voltage sampler function provides dynamic power management capability to dramatically minimize system power consumption.
• SmartLinearizer DAC feature provides a linear transfer function from input video code to green laser output, eliminating the need for DSP controller processing algorithms.
• Flexible 10-bit or 15-bit RGB pixel input formats supported to reduce speed and power requirements.
• Programmable return-to-zero (RTZ) function provides maximum flexibility in signal handling.

Applications

• High-speed laser scanning projector systems
• RGB color field sequential laser projection systems
• Laser-based pico projectors
• Applications requiring automatic power calibration (APC)

Procurement Notes

Verify the specific suffix (e.g., CRTZ-T7A vs. T13) against the required reel quantity and tape configuration. Confirm RoHS compliance status and lead-free specifications with the manufacturer or authorized distributor prior to ordering. Ensure the package type matches the PCB footprint design constraints.

Selection Notes

Select this component when designing laser scanning systems that require independent threshold and color DAC control for each of the three output channels. It is suitable for applications needing flexible data rates up to 300MHz and low standby current consumption via blanking time power reduction features.

Part Context

This part belongs to the ISL58315 series of high-speed triple laser diode drivers manufactured by Renesas Electronics. It is distinct from lower-speed variants like the ISL58303 and serves as a specialized solution for complex multi-channel laser modulation tasks in compact display technologies.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing board designs if considering alternative laser drivers within the same product family.

FAQ

Does the ISL58315 require external DSP processing for green laser linearity?

No, the integrated SmartLinearizer DAC feature provides a linear transfer function, eliminating the need for DSP controller processing algorithms typically required for non-linear green lasers.

What is the typical current consumption during blanking time?

The LDD current consumption reduces to 3mA typical during blanking time power reduction modes.