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Product Detailed Parameters
- Description：16-CHANNEL CONSTANT CURRENT DRIV
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Constant Current
- Internal Switch(s)：Yes
- Number of Outputs：16
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：130mA
- Frequency：-
- Dimming：PWM, SPI
- Applications：Backlight
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：48-VFQFN Exposed Pad
- Supplier Device Package：VQFN48FAV070
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The BD12801MUF-ME2 is a 16-channel constant current LED driver IC designed for automotive backlight applications. It operates within an input voltage range of 3 V to 5.5 V and supports Boost and Buck topologies. The device delivers up to 130 mA total output current with a maximum per-channel drive of 120 mA, supporting a maximum output voltage of 20 V. It features independent 13-bit PWM dimming (8192 steps) and 8-bit local DC dimming (256 steps). Communication is handled via SPI at data transfer rates up to 5 MHz. Operating temperatures range from -40°C to +125°C in a VQFN-48 package.
Feature Summary
- Integrates independent 13-bit PWM dimming and 8-bit local DC dimming functions for precise brightness control across all channels.
- Includes LSI protection mechanisms such as UVLO, thermal shutdown, and current setting short-circuit protection alongside LED abnormality detection for open and short circuits.
- Supports cascade connection capabilities and provides an integrated FAIL pin for reporting system anomalies.
Applications
- Automotive instrument cluster backlighting
- Center display panel illumination
- Door switch lighting systems
Procurement Notes
Verify the specific suffix ME2 against official ROHM documentation to confirm packaging and tape specifications. Ensure design compliance with AEC-Q100 Grade 1 requirements for automotive deployment. Confirm moisture sensitivity handling procedures are followed during assembly due to the component's humidity sensitivity classification.
Selection Notes
Select this component when designing multi-zone automotive displays requiring high-resolution dimming without external microcontrollers for each channel. The integrated SPI interface reduces pin count compared to parallel solutions. Consider the VQFN-48 footprint for PCB layout constraints and verify thermal dissipation capabilities within the specified operating temperature range.
Part Context
This part belongs to ROHM's automotive-grade LED driver portfolio, specifically engineered for complex interior lighting architectures. It replaces older discrete driver solutions by integrating multiple channels and advanced dimming algorithms into a single compact package, simplifying board design for modern vehicle infotainment and instrumentation systems.
Replacement Considerations
The BD12801MUF-M is listed as an alias for this component. Verify functional equivalence and packaging details before substitution. No other direct cross-model replacements are confirmed in available public documentation.
