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Product Detailed Parameters
- Description：IC LED DRVR RGLTR PWM 50MA 20QFN
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Regulator
- Topology：Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：6
- Voltage - Supply (Min)：4.5V
- Voltage - Supply (Max)：26.5V
- Voltage - Output：45V
- Current - Output / Channel：50mA
- Frequency：600kHz, 1.14MHz
- Dimming：PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-VFQFN Exposed Pad
- Supplier Device Package：20-QFN (3x4)
- Grade：-
- Qualification：-
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Overview
The ISL97671AIRZ-T is a six-channel LED driver IC featuring an integrated boost DC-DC converter. It supports PWM dimming control with output currents up to 50mA per channel and operates within a supply voltage range of 4.5V to 26.5V. The device utilizes internal switches and offers switching frequencies of 600kHz or 1.14MHz. It is housed in a 20-QFN (3x4) package and functions reliably across a temperature range of -40°C to +85°C.
Feature Summary
- Integrates a boost topology DC-DC converter with internal power switches for efficient LED driving.
- Provides independent current regulation for six output channels with precise PWM dimming capability.
- Supports flexible switching frequency selection to optimize external component size and system performance.
Applications
- LED backlighting systems
- General LED lighting applications
Procurement Notes
Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm that the 'A' variant matches the required electrical specifications compared to earlier revisions. Ensure the 20-QFN footprint aligns with the PCB layout design. Check for RoHS compliance status relevant to the target market regulations before finalizing procurement.
Selection Notes
Select this component for designs requiring high integration and multiple LED channels from a single driver. Consider the 50mA output limit when determining series/parallel LED configurations. Evaluate the 600kHz or 1.14MHz frequency options against EMI constraints and inductor size requirements. Ensure the input voltage range accommodates the battery or supply source variations in the application.
Part Context
This part belongs to the Renesas ISL97671A family of LED drivers, designed specifically for multi-channel LED illumination. It complements other variants like the ISL97673 by offering similar functionality with specific current ratings and packaging options tailored for compact electronic designs.
Replacement Considerations
ISL97671AIRZ is the tube-packaged equivalent of the same functional device. ISL97673IRZ-T offers similar architecture but with a 40mA output rating per channel.
