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Product Detailed Parameters
- Description：IC LED DRVR RGLTR PWM 40MA 20QFN
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tape & Reel (TR)
- 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：40mA
- Frequency：600kHz, 1.2MHz
- 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：Automotive
- Qualification：-
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Overview
The ISL97673IRZ-TK is a six-channel LED lighting driver IC manufactured by Renesas Electronics. It operates as a boost DC-DC converter with integrated internal switches, designed for backlight applications. The device supports PWM dimming and brightness control functions. Electrical specifications include a supply voltage range of 4.5V to 26.5V, an output voltage capability up to 45V, and a maximum channel current of 40mA. Switching frequencies are selectable at 600kHz or 1.2MHz. The component is housed in a 20-VFQFN package with an exposed pad and is qualified for automotive use within an operating temperature range of -40°C to +85°C.
Feature Summary
- Six independent output channels for multi-zone LED driving
- Integrated boost topology with internal power switches
- Supports PWM dimming and brightness regulation
- Automotive-grade qualification for reliability
Applications
- LED backlight systems
- Automotive display illumination
- Multi-channel LED lighting arrays
Procurement Notes
Verify the specific suffix 'TK' against official Renesas documentation to confirm tape-and-reel packaging details and any distinct marking codes. Ensure compatibility with the required switching frequency selection pins and confirm that the 20-QFN exposed pad thermal requirements match the target PCB layout design.
Selection Notes
Select this component when a six-channel solution with integrated boost conversion is required for automotive backlighting. Compare the 40mA per-channel limit against load requirements. Verify that the 20-VFQFN footprint fits the assembly constraints and that the 600kHz/1.2MHz frequency options align with external inductor selection guidelines.
Part Context
This part belongs to the ISL97673 series of LED drivers from Renesas. It shares core functionality with variants like the ISL97673IRZ and ISL97673IRZ-T, differing primarily in packaging format and reel quantity specifications. The series targets high-reliability automotive lighting applications requiring precise current regulation and dimming capabilities.
Replacement Considerations
ISL97673IRZ and ISL97673IRZ-T are functionally equivalent parts within the same series. Verify pinout and electrical parameters remain identical before substitution.
