ISL97677IRZ

Description：IC LED DRVR RGLTR PWM 50MA 32QFN
Series：-
Mfr：Renesas Electronics Corporation
Package：Tube

SKU:a079b271720b Category: LED Drivers IC Brand: Renesas Electronics Corporation

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Product introduction

Product Detailed Parameters

Description：IC LED DRVR RGLTR PWM 50MA 32QFN
Series：-
Mfr：Renesas Electronics Corporation
Package：Tube
Type：DC DC Regulator
Topology：Step-Up (Boost)
Internal Switch(s)：Yes
Number of Outputs：8
Voltage - Supply (Min)：4.75V
Voltage - Supply (Max)：26V
Voltage - Output：45V
Current - Output / Channel：50mA
Frequency：500kHz ~ 1.5MHz
Dimming：PWM
Applications：Backlight
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：32-VFQFN Exposed Pad
Supplier Device Package：32-QFN (5x5)
Grade：-
Qualification：-

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ISL97677IRZ

Overview

The ISL97677IRZ is an LED lighting driver IC featuring eight independent output channels. It operates within a supply voltage range of 4.5V to 26.5V and supports a maximum output voltage of 45V per channel, with a regulated current capability of 50mA. The device integrates an internal boost DC-DC converter switching at frequencies between 600kHz and 1.5MHz. It provides brightness control via PWM and SMBus/I2C interfaces. The component functions reliably across an ambient temperature range of -40°C to +85°C and is housed in a QFN-EP-32 package.

Feature Summary

Integrates eight independent regulated LED output channels for multi-zone illumination control
Supports dual dimming methods including high-frequency PWM and digital SMBus/I2C communication
Contains an integrated internal boost DC-DC converter eliminating external power stage components

Applications

Automotive interior LED lighting systems
Ambient cabin illumination modules
Multi-channel LED backlighting arrays

Procurement Notes

Verify the specific suffix 'IRZ' against official Renesas documentation to confirm the tape-and-reel packaging configuration. Confirm that the I2C/SMBus interface requirements align with the system controller's protocol capabilities. Ensure the thermal design accommodates the specified power dissipation limits within the operating temperature range.

Selection Notes

Select this component when a high channel count is required for complex lighting architectures. The integrated boost topology simplifies board layout compared to linear drivers. Verify that the 50mA per channel current rating meets the specific LED string requirements without necessitating external amplification stages.

Part Context

This part belongs to the ISL97673 series of LED lighting drivers from Renesas Electronics. The series focuses on automotive applications requiring precise current regulation and multiple output channels. It shares functional similarities with other members like the ISL97672 but offers distinct channel counts and interface options tailored for different vehicle lighting zones.