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Product Detailed Parameters
- Description：IC LED DRVR LIN PWM 50MA 20SSOP
- 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：40V
- Current - Output / Channel：50mA
- Frequency：-
- Dimming：PWM
- Applications：-
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-LSSOP (0.173", 4.40mm Width)
- Supplier Device Package：20-SSOP-B
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The BD8389FV-ME2 is a linear LED driver IC featuring 12 outputs with a shift register topology and PWM dimming capability. It operates on a supply voltage range of 3V to 5.5V, delivering up to 50mA per channel with a maximum output voltage of 40V. Designed for automotive applications, it meets AEC-Q100 standards and functions within a temperature range of -40°C to 125°C. The component is housed in a compact 20-SSOP-B package.
Feature Summary
- Features open-drain outputs with an internal slew rate of 20V/μs to minimize electromagnetic interference noise.
- Supports cascade connections for expanded control capabilities in multi-device configurations.
- Integrates a 3-line serial interface combined with an enable signal for efficient data transfer.
Applications
- Automotive exterior lighting systems
- Interior vehicle illumination circuits
- Dashboard and instrument panel backlighting
Procurement Notes
Verify the specific suffix ME2 against the manufacturer's datasheet to confirm pinout compatibility and packaging specifications. Ensure that the design accounts for the thermal characteristics associated with the SSOP-B20 package during operation. Confirm that the selected supplier provides documentation verifying AEC-Q100 Grade 1 qualification status for automotive reliability requirements.
Selection Notes
Select this component when designing automotive LED arrays requiring precise PWM dimming control via a serial interface. It is suitable for space-constrained applications due to its small footprint. Consider the 40V output rating and 50mA per-channel limit when sizing the LED load. Verify that the system power supply remains within the 3V to 5.5V input range for stable operation.
Part Context
This device belongs to the BD8389 series of automotive-grade LED drivers manufactured by ROHM Semiconductor. It is part of a family designed for high-reliability automotive electronics, adhering to strict functional safety support categories. The series emphasizes low electromagnetic interference through controlled output slew rates, making it appropriate for sensitive vehicle electronic environments.
Replacement Considerations
The BD8389FV-M is the base model variant without the ME2 suffix. Verify if the ME2 suffix denotes a specific environmental or packaging modification before substitution. Cross-reference electrical parameters and pin assignments to ensure direct compatibility in existing designs.
