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Product Detailed Parameters
- Description：9-CHANNEL IR LED DRIVER WITH BUC
- Series：-
- Mfr：Kinetic Technologies
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Regulator
- Topology：Step-Down (Buck)
- Internal Switch(s)：Yes
- Number of Outputs：9
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：32mA
- Frequency：1MHz
- Dimming：I2C
- Applications：Camera Flash
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：20-UFQFN Exposed Pad
- Supplier Device Package：20-UQFN (3x3)
- Grade：-
- Qualification：-
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Overview
The KTD2041EUAC-TR is a 9-channel infrared LED driver IC manufactured by Kinetic Technologies. It integrates a step-down (buck) DC-DC regulator and supports I2C interface control for dimming. The device provides multiplexed constant current outputs with a maximum output current of 32 mA per channel. It operates within an input voltage range of 2.5 V to 5.5 V and features an adjustable switching frequency up to 1 MHz. The component is housed in a UQFN-20 package and functions reliably across a temperature range of -40°C to +85°C.
Feature Summary
- Integrates a buck regulator for efficient power conversion
- Supports I2C digital control for precise dimming
- Provides nine independent constant current channels
Applications
- Camera flash systems
- Infrared illumination modules
- Optical sensor lighting
Procurement Notes
Verify the specific suffix TR indicates tape and reel packaging when sourcing. Confirm the UQFN-20 package dimensions match the target PCB footprint. Ensure the I2C address configuration aligns with the system bus requirements. Check RoHS compliance status if required by assembly standards.
Selection Notes
Select this component for applications requiring multiple IR LEDs driven from a single supply rail. The integrated buck converter reduces external component count compared to linear drivers. Verify that the 32 mA output current meets the forward current requirements of the selected infrared LEDs. Consider the thermal performance of the UQFN-20 package under continuous operation.
Part Context
This part belongs to the Kinetic Technologies KTD20xx series of LED drivers. It shares the I2C control architecture with other models like the KTD2061 but differs in channel count and topology. While the KTD2061 offers 36 channels with boost/buck capabilities, the KTD2041 focuses on a compact 9-channel solution optimized for infrared applications using a buck regulator.
Replacement Considerations
Direct pin-to-pin replacements are not explicitly documented in public sources. Evaluate alternative Kinetic Technologies parts such as the KTD2052 or KTD2061 only if channel count and topology adjustments are acceptable. Verify electrical compatibility before substitution.
