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Product Detailed Parameters
- Description：IC LED DRIVER CTRLR PWM 20HTSSOP
- 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：100Hz ~ 5kHz
- Dimming：PWM
- Applications：-
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-VSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：20-HTSSOP-B
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The BD18345EFV-ME2 is a constant current controller for automotive LED lamps manufactured by ROHM Semiconductor. It features a single output with a maximum drive current of 400 mA and supports both boost and buck topologies. The device operates within an input voltage range of 4.5 V to 19 V, with an adjustable output voltage. It functions at switching frequencies between 100 Hz and 5 kHz. Qualified under AEC-Q100 standards, it withstands temperatures from -40°C to +125°C and is housed in a 20-pin HTSSOP-B package.
Feature Summary
- Supports boost and buck converter topologies for flexible LED driving configurations
- AEC-Q100 qualified for automotive reliability requirements
- Integrated thermal shutdown protection for operational safety
Applications
- Automotive LED lamp drivers
- Headlight systems
- Tail light circuits
Procurement Notes
Verify the specific suffix ME2 against the manufacturer's official datasheet to confirm pinout compatibility and electrical specifications. Ensure the component meets AEC-Q100 grade requirements for your target automotive application. Cross-reference the HTSSOP-B-20 package dimensions with your PCB layout constraints before finalizing procurement decisions.
Selection Notes
Select this component when designing automotive lighting circuits requiring a single-channel driver with up to 400 mA output. It is suitable for applications utilizing either boost or buck topologies within a 19 V maximum supply limit. Consider its wide operating temperature range and integrated protections if high reliability in harsh environments is required.
Part Context
This part belongs to the BD183xx series of LED lighting driver ICs from ROHM Semiconductor. These components are specifically engineered for automotive use, offering various channel counts and topologies. The BD18345 variant focuses on single-output applications with moderate current capabilities compared to higher-current counterparts in the same family.
Replacement Considerations
Consult the official ROHM product selection guide for direct substitutes within the BD183xx series. Verify that any alternative maintains the required 400 mA output current and compatible HTSSOP-B-20 packaging.
