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Product Detailed Parameters
- Description：HIGH-PERFORMANCE STEP-DOWN DC/DC
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tape & Reel (TR)
- Type：DC DC Controller
- Topology：Step-Down (Buck)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：22V
- Voltage - Supply (Max)：65V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：-
- Dimming：Analog, PWM
- Applications：LED Lighting
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：10-SOP (0.154", 3.90mm Width)
- Supplier Device Package：10-SOIC
- Grade：-
- Qualification：-
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Overview
The IW380-12BF is a high-performance, single-stage non-isolated buck DC/DC controller designed for commercial LED lighting applications. It operates with an input voltage range of 22V to 78V and supports output power up to 150W. The device features Renesas' True DC dimming technology, providing flicker-free operation across a wide dimming range from 0.0625% to 100%. It includes comprehensive protection mechanisms such as input overvoltage, output short circuit, and over-temperature protection.
Feature Summary
- Supports high-resolution True DC dimming with zero ripple across the entire dimming range
- Accepts multiple dimming inputs including PWM, analog, and resistor-set configurations
- Integrates light-off mode to completely turn off LEDs at minimum dimming levels
- Provides tight output current regulation with ±3% accuracy
Applications
- Commercial solid-state lighting systems
- Second-stage post-regulation in AC/DC lighting converters
- Standalone DC/DC converter circuits for LED arrays
- DALI-2 compliant dimmable lighting fixtures
Procurement Notes
Verify the specific suffix 'BF' against official Renesas documentation to confirm package type and tape/reel specifications. Confirm availability status as distribution channels may list limited stock or obsolete status. Ensure compatibility with required operating temperature ranges and moisture sensitivity levels before procurement.
Selection Notes
Select this component for designs requiring precise constant current regulation without visible flicker. It is suitable for systems needing flexible dimming control via MCU or standard 0-10V interfaces. Consider the SOIC-10 package constraints and thermal management requirements for high-power implementations.
Part Context
The IW380-12BF belongs to the iW380 series of LED drivers developed by Renesas Electronics (formerly Dialog Semiconductor). This series focuses on high-efficiency buck conversion for commercial illumination, emphasizing advanced dimming capabilities and robust protection features within a compact footprint.
Replacement Considerations
Check for direct pin-compatible alternatives within the iW380 family or updated revisions from Renesas. Verify functional equivalence regarding dimming resolution and input voltage tolerance when considering cross-brand substitutes.
