ISL97684IRTZ

$3.32

Description：IC LED DRV RGLTR PWM 50MA 16TQFN
Series：-
Mfr：Renesas Electronics Corporation
Package：Tube

SKU:02693f832d81 Category: LED Drivers IC Brand: Renesas Electronics Corporation

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Product introduction

Product Detailed Parameters

Description：IC LED DRV RGLTR PWM 50MA 16TQFN
Series：-
Mfr：Renesas Electronics Corporation
Package：Tube
Type：DC DC Regulator
Topology：Step-Up (Boost)
Internal Switch(s)：Yes
Number of Outputs：4
Voltage - Supply (Min)：4V
Voltage - Supply (Max)：26.5V
Voltage - Output：45V
Current - Output / Channel：50mA
Frequency：600kHz
Dimming：PWM
Applications：Backlight
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：16-WFQFN Exposed Pad
Supplier Device Package：16-TQFN (3x3)
Grade：-
Qualification：-

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ISL97684IRTZ

Overview

The ISL97684IRTZ is a four-channel LED driver IC from Renesas Electronics, designed for medium-size TFT-LCD backlight applications. It utilizes a boost DC-DC converter topology with an internal switch to drive LEDs from input voltages as low as 4V to output voltages up to 45V. The device supports PWM dimming with selectable switching frequencies of 600kHz or 1MHz. It operates within an ambient temperature range of -40°C to +85°C and is housed in a compact 16-TQFN (3x3mm) package.

Feature Summary

Features dynamic headroom control that monitors the highest LED forward voltage string to minimize output regulation voltage and improve efficiency.
Offers optional channel phase shift control to minimize input/output ripple and reduce video/audio noise interference.
Provides adaptive boost switching architecture enabling direct PWM dimming with high linearity performance.

Applications

Medium-size TFT-LCD backlights
Display systems requiring reduced EMI interference

Procurement Notes

Verify component status carefully as this part has been officially declared End-of-Life (EOL). Check manufacturer announcements for final shipment dates and obsolescence notices. Ensure replacement strategies are implemented prior to inventory depletion. Confirm RoHS compliance and moisture sensitivity level requirements for assembly processes.

Selection Notes

Select this component for designs requiring four independent LED channels with integrated boost regulation. Consider the 16-TQFN package size constraints and thermal dissipation capabilities. Evaluate the need for phase-shifted operation to meet specific EMI standards. Verify input voltage ranges align with system power supply specifications.

Part Context

This model belongs to the ISL97682/83/84 series of highly integrated LED drivers. The series shares common features such as adaptive boost architecture and fault protection mechanisms. Variants differ primarily by the number of output channels, with this specific model providing four regulated outputs for balanced backlighting applications.