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Product Detailed Parameters
- Description：IC LED DRIVER CTRLR PWM 16SSOP
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Controller
- Topology：-
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：4.5V
- Voltage - Supply (Max)：19V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：5MHz
- Dimming：PWM
- Applications：-
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-LSSOP (0.173", 4.40mm Width)
- Supplier Device Package：16-SSOP-B
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The BD18340FV-ME2 is a single-channel LED lighting driver IC designed for automotive applications, featuring an integrated controller and external transistor drive capability. It operates within a supply voltage range of 4.5 V to 19 V and supports adjustable output voltages up to 60 V. The device delivers a maximum output current of 400 mA with a switching frequency adjustable between 100 Hz and 5 kHz. Packaged in a compact SSOP-B-16 format, it functions reliably across temperatures from -40°C to +125°C and holds AEC-Q100 Grade 1 qualification.
Feature Summary
- Supports PWM dimming for precise brightness control
- Provides constant current regulation for stable LED performance
- Includes protection mechanisms such as over-voltage mute and short-circuit protection
Applications
- Automotive exterior lighting systems
- LED headlamp modules
- Daytime running light circuits
Procurement Notes
Verify the complete part number including the suffix ME2 to ensure correct packaging and revision. Confirm AEC-Q100 compliance requirements match your specific automotive grade needs. Check datasheet for thermal management specifications given the SSOP-B-16 package constraints. Ensure input voltage ranges align with your vehicle's power system architecture before integration.
Selection Notes
Select this component when a single-channel high-reliability driver is required for automotive LED arrays. It is suitable for designs needing PWM dimming and robust fault protection features. Consider the 400 mA output limit and external transistor configuration for current handling. Verify compatibility with existing microcontroller interfaces for dimming control signals.
Part Context
This IC belongs to ROHM's automotive-grade LED driver family, specifically engineered for high-reliability lighting applications. It complements other models like the BD18341 by offering similar functionality in a standardized package. The series emphasizes safety features and durability under harsh automotive environments, ensuring consistent performance throughout the vehicle's operational lifespan.
Replacement Considerations
The BD18340FV-M is listed as an alias or predecessor variant. Verify pinout and electrical specifications against the official datasheet before substitution. Ensure any replacement maintains the same AEC-Q100 qualification level and package dimensions for direct board compatibility.
