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Product Detailed Parameters
- Description：IC LED DRV RGLTR PWM 16TQFN
- 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：2
- Voltage - Supply (Min)：4V
- Voltage - Supply (Max)：26.5V
- Voltage - Output：45V
- Current - Output / Channel：100mA
- 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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Overview
The ISL97682IRTZ-TK is a Renesas LED lighting driver IC featuring four output channels. It operates within an ambient temperature range of -40°C to +85°C and utilizes a TQFN package with 16 leads, measuring 3mm by 3mm. The device supports PWM dimming and includes brightness control features. It is classified as an obsolete product with a discontinuation notification dated June 6, 2025.
Feature Summary
- Four-channel LED driver architecture suitable for medium-size TFT-LCD backlights
- Adaptive boost switching architecture enabling direct PWM dimming with high linearity
- Dynamic headroom control monitors highest LED forward voltage string for minimum output regulation
- Integrated fault protection including string open/short circuit detection, overvoltage, and overtemperature protection
Applications
- Medium-size TFT-LCD backlight systems
- LED lighting driver circuits requiring multi-channel control
Procurement Notes
This component is officially discontinued by Renesas Electronics Corporation. A Product Discontinuation Notification was issued on June 6, 2025. Availability is restricted, and the item is no longer stocked by major distributors such as Mouser or RS Components. Verification of end-of-life status and substitute sourcing is required before procurement planning.
Selection Notes
Designers should evaluate alternative components due to the confirmed obsolescence of this part number. The ISL97682 series offers phase shift control to minimize input ripple and load transient noise. Selection must account for the specific 16-lead TQFN footprint and the requirement for dynamic headroom control in backlight applications.
Part Context
The ISL97682 belongs to the ISL97682/ISL97683/ISL97684 family of highly integrated LED drivers from Renesas (formerly Intersil). These devices are designed to drive multiple channels of LEDs from inputs as low as 4V to outputs up to 45V. The family shares features like selectable switching frequencies and compact packaging.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the discontinued status, engineers must identify pin-compatible or functionally equivalent alternatives through official Renesas cross-reference tools or engineering analysis.
