EL7513IWT-T7

Overview

The EL7513IWT-T7 is a constant current boost regulator designed for driving white LEDs. It operates with a supply voltage range of 2.6V to 13.2V and provides an output voltage up to 18V. The device delivers a maximum output current of 500mA at a switching frequency of 1MHz. It supports PWM dimming and functions within a temperature range of -40°C to +85°C. Packaged in TSOT-23-8, it drives up to four series or twelve parallel/series LEDs.

Feature Summary

• Constant current boost regulation architecture optimized for white LED driving applications
• Supports Pulse Width Modulation (PWM) dimming control for brightness adjustment
• Integrated high-side switch eliminates the need for external power MOSFETs

Applications

• White LED backlighting systems
• Portable electronic devices requiring LED illumination
• Automotive interior lighting circuits

Procurement Notes

Verify the specific suffix T7 indicates reel packaging when sourcing. Confirm the manufacturer is Renesas Electronics Corporation, formerly Intersil/Xicor. Ensure the package type matches TSOT-23-8 requirements for your PCB layout. Check RoHS compliance status as indicated in official documentation before finalizing procurement orders.

Selection Notes

Select this component when a compact solution for driving multiple white LEDs in series or parallel is required. The 500mA output capability suits medium-brightness applications. Consider the 1MHz switching frequency for balancing efficiency and external component size. Verify input voltage ranges align with the system's power supply rails between 2.6V and 13.2V.

Part Context

This part belongs to the EL7513 family of LED drivers from Renesas. It is a specialized power management IC focused on efficient DC-DC conversion for lighting loads. The device integrates necessary control logic and power switches into a small footprint, simplifying design for portable and automotive lighting products.

Replacement Considerations

Check for direct pin-compatible alternatives within the Renesas EL75xx series. Verify electrical parameters such as output current and voltage limits match original requirements. Ensure thermal performance and package dimensions are compatible with existing board space constraints.

FAQ

What is the maximum number of LEDs this driver can support?

The EL7513IWT-T7 can drive up to four LEDs in series or up to twelve LEDs in parallel/series configurations.

Does this device support dimming functionality?

Yes, the EL7513IWT-T7 supports PWM dimming for controlling LED brightness levels.