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Product Detailed Parameters
- Description：IC LED DRIVER CTRLR PWM 16SOP
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Controller
- Topology：Step-Up (Boost)
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：11.5V
- Voltage - Supply (Max)：35V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：150kHz
- Dimming：Analog, PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 105°C
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.173", 4.40mm Width)
- Supplier Device Package：16-SOP
- Grade：-
- Qualification：-
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Overview
The BD9409F-E2 is a single-channel LED lighting driver IC manufactured by ROHM Semiconductor. It utilizes a standard boost topology to regulate current for LED applications. The device operates within an input voltage range of 11.5V to 35V and supports an adjustable output voltage. It features a fixed switching frequency of 150kHz and incorporates PWM dimming capabilities. The component is housed in a 16-SOP package and is designed to function reliably across a wide temperature range from -40°C to +105°C.
Feature Summary
- Supports PWM dimming functionality for precise light control
- Includes open LED protection circuitry for safety
- Utilizes a boost DC/DC converter topology
Applications
- LED backlighting systems
- General LED lighting drivers
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct packaging and variant selection. Confirm that the requested part number matches the exact electrical specifications required for the target application, as minor suffix variations may indicate differences in tape-and-reel quantities or environmental ratings.
Selection Notes
Select this component when a single-channel boost driver with integrated protection is required. Ensure the system input voltage remains within the specified 11.5V to 35V range. Consider the 16-SOP package size constraints and the 150kHz switching frequency requirements during PCB layout design to maintain optimal thermal performance and electromagnetic compatibility.
Part Context
This part belongs to the BD9409 series of LED driver controllers from ROHM Semiconductor. These devices are engineered for high reliability in lighting applications, offering robust protection features such as over-voltage and open-LED detection. The series is characterized by its ability to drive LEDs efficiently using a boost configuration while maintaining stable operation under varying load conditions.
Replacement Considerations
Consult the official datasheet for direct pin-to-pin compatible alternatives within the same product family. Verify that any substitute component maintains identical boost topology, voltage ranges, and protection features to ensure seamless integration without redesigning the surrounding circuitry.
