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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：Analog, 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 ISL97687IRTZ is a four-channel LED driver IC manufactured by Renesas Electronics Corporation. It functions as a DC-DC boost controller designed for high-efficiency LED lighting applications. The device supports an input voltage range of 9V to 32V and delivers up to 160mA per channel. Operating frequencies span from 200kHz to 1.2MHz, with adjustable output voltage capabilities. It features both analog and PWM dimming support and includes open LED protection. The component is housed in a 28-TQFN (5x5) package with exposed pad and operates within a temperature range of -40°C to 105°C.
Feature Summary
- Four independent current-controlled channels for precise LED regulation
- Integrated boost topology DC-DC controller for efficient power conversion
- Supports simultaneous analog and PWM dimming control methods
- Built-in open LED protection circuitry for enhanced system reliability
Applications
- LED backlighting systems
- General LED lighting drivers
- High-power LED arrays requiring boost conversion
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels due to end-of-life status. Confirm RoHS compliance and moisture sensitivity level handling requirements during storage and assembly. Review product change notifications for any manufacturing updates prior to integration into new designs.
Selection Notes
Evaluate thermal performance and PCB layout constraints associated with the 28-TQFN package. Ensure input voltage supply remains within the specified 9V to 32V range for stable operation. Consider frequency selection based on external inductor size and efficiency targets. Verify compatibility with existing dimming control signals for analog or PWM interfaces.
Part Context
This part belongs to the ISL97687 series of LED drivers from Renesas. It is specifically engineered for multi-channel LED applications requiring high efficiency and precise current control. The series utilizes a boost converter architecture to drive LEDs from lower input voltages. This specific variant represents the tape-and-reel packaging option for automated assembly processes.
Replacement Considerations
The ISL97687IRTZ is listed as obsolete. Check for official replacement part numbers provided by Renesas or authorized distributors. Evaluate functional equivalents that match the 4-channel boost topology and similar electrical specifications.
