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Product Detailed Parameters
- Description：IC LED DRVR CTRL PWM 160MA 28QFN
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tube
- Type：DC DC Controller
- Topology：Step-Up (Boost)
- Internal Switch(s)：No
- Number of Outputs：4
- Voltage - Supply (Min)：9V
- Voltage - Supply (Max)：32V
- Voltage - Output：-
- Current - Output / Channel：160mA
- Frequency：200kHz ~ 1.2MHz
- Dimming：PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Package / Case：28-WFQFN Exposed Pad
- Supplier Device Package：28-TQFN (5x5)
- Grade：-
- Qualification：-
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Overview
The ISL97686IRTZ is a four-channel LED driver controller manufactured by Renesas Electronics Corporation. It operates on a single supply voltage ranging from 4V to 26.5V and delivers up to 160mA per channel. The device utilizes an internal boost DC-DC converter with a switching frequency of 600kHz to drive high-voltage LED strings, supporting up to 45V output. It features pulse-width modulation (PWM) dimming capabilities and is housed in a compact 28-TQFN package measuring 5x5mm.
Feature Summary
- Integrates a high-efficiency step-up DC-DC converter for driving multiple series-connected LEDs
- Provides independent current regulation across four distinct output channels
- Supports high-resolution digital PWM dimming for precise brightness control
Applications
- LCD monitor backlight systems
- Television LCD backlight arrays
- High-brightness LED lighting modules
Procurement Notes
Verify the specific suffix 'IRTZ' to confirm the tape-and-reel packaging format and lead-free RoHS compliance status. Confirm the manufacturer part number against official Renesas documentation to ensure authenticity, as this component may have end-of-life implications or require checking for active replacement variants.
Selection Notes
Select this component when designing circuits requiring independent control of four LED channels with high current capacity. Ensure the input voltage range aligns with the system power supply and that the thermal performance of the 28-QFN package suits the application's heat dissipation requirements.
Part Context
This IC belongs to the ISL9768x family of LED drivers designed for display applications. It shares architectural similarities with models like the ISL97684 and ISL97682 but offers higher current output and additional channels compared to lower-end variants in the same product line.
Replacement Considerations
Check for direct pin-compatible alternatives within the Renesas portfolio if availability is constrained. Verify electrical specifications of any substitute to ensure compatibility with existing PCB layouts and control signals.
