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Product Detailed Parameters
- Description：IC LED DRV LIN PWM 50MA 20HTSSOP
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Shift Register
- Internal Switch(s)：Yes
- Number of Outputs：12
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：10V
- Current - Output / Channel：50mA
- Frequency：1.25MHz
- Dimming：PWM
- Applications：-
- Operating Temperature：-40°C ~ 105°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 BD18377EFV-ME2 is a 12-channel LED driver IC from ROHM Semiconductor, designed for automotive lighting applications. It features a boost topology with an operating supply voltage range of 3 V to 5.5 V. The device provides an output current capability of 15 mA to 50 mA per channel and supports a maximum output voltage of 10 V. Operating at a frequency of 1.25 MHz, it is housed in an HTSSOP-B-20 package. Qualified under AEC-Q100 standards, it functions within a temperature range of -40 °C to +105 °C.
Feature Summary
- Integrates 12 independent output channels for multi-LED control
- Utilizes boost topology for efficient LED driving
- Supports PWM dimming functionality
- Complies with AEC-Q100 automotive qualification standards
Applications
- Automotive exterior lighting systems
- Interior vehicle illumination modules
- Dashboard and ambient lighting circuits
- LED matrix driver configurations
Procurement Notes
Verify the specific suffix ME2 against the official datasheet to confirm pinout and electrical characteristics match the design requirements. Confirm availability status as the component may be restricted for new designs. Ensure the HTSSOP-B-20 package dimensions align with the PCB footprint. Validate that the 10 V output limit meets the load requirements before finalizing the procurement order.
Selection Notes
Select this component when a high channel count is required for compact automotive lighting designs. The boost topology suits applications where input voltage is lower than the LED string voltage. Consider the 1.25 MHz switching frequency for EMI management. Verify that the 15 mA to 50 mA current range adequately drives the target LEDs without external amplification.
Part Context
This part belongs to ROHM's automotive-grade LED driver family, specifically engineered for complex lighting architectures. It integrates multiple channels into a single small form factor, reducing board space compared to discrete solutions. The AEC-Q100 certification ensures reliability in harsh automotive environments, making it suitable for critical lighting functions.
Replacement Considerations
Check for direct cross-reference part numbers from ROHM or other qualified automotive suppliers. Ensure any substitute maintains the 12-channel configuration, boost topology, and AEC-Q100 qualification. Verify package compatibility and thermal performance if replacing with a different manufacturer's component.
