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Product Detailed Parameters
- Description：IC LED DRIVER CTRLR DIM 28HTSSOP
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Controller
- Topology：Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：5V
- Voltage - Supply (Max)：30V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：200kHz ~ 600kHz
- Dimming：PWM
- Applications：-
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：28-VSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：28-HTSSOP-B
- Grade：Automotive
- Qualification：-
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Overview
The BD8381EFV-ME2 is a single-channel automotive-grade LED lighting driver IC manufactured by ROHM Semiconductor. It utilizes a Buck-Boost topology and operates within an input voltage range of 5 V to 30 V. The device features a maximum power dissipation (Pd) of 1.45 W and supports PWM dimming control. It is housed in a compact HTSSOP-B-28 package and is designed for surface mount installation. The component is qualified for operation between -40°C and +125°C, ensuring reliability in demanding automotive environments.
Feature Summary
- Integrates a single current-mode output channel with built-in MOSFET capabilities for efficient LED driving.
- Supports Pulse Width Modulation (PWM) dimming for precise brightness control applications.
- Features a robust Buck-Boost converter topology suitable for varying input voltage conditions.
Applications
- Automotive exterior lighting systems
- Interior cabin illumination circuits
- Dashboard and instrument panel backlighting
Procurement Notes
Verify the specific ordering suffix and package variant against the official datasheet before procurement. Confirm that the intended application aligns with the component's automotive qualification standards. Ensure compatibility with the required thermal management solutions given the specified power dissipation limits. Cross-reference the manufacturer's latest documentation to confirm availability status and any potential design-in restrictions.
Selection Notes
Select this component for designs requiring a single-channel solution with wide input voltage flexibility. The integrated MOSFET simplifies the bill of materials by reducing external component count. Consider the thermal performance constraints associated with the 1.45 W power dissipation rating when designing the PCB layout. Verify that the HTSSOP-B-28 package dimensions fit the available board space constraints.
Part Context
This part belongs to ROHM's portfolio of automotive LED drivers, specifically targeting high-reliability lighting applications. It is engineered to meet stringent automotive quality standards, including AEC-Q100 qualification. The series emphasizes compact form factors and integrated protection features to support modern vehicle lighting architectures.
Replacement Considerations
Consult the manufacturer's official obsolescence notices for recommended alternatives. The BD8381AEFV-ME2 shares similar functional characteristics but requires verification of pinout and electrical parameter compatibility. Do not substitute without confirming full technical equivalence through official cross-reference data.
