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Product Detailed Parameters
- Description：12-CH ADAPTIVE DRIVING BEAM ARRA
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR)
- Type：DC DC Regulator
- Topology：Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：16
- Voltage - Supply (Min)：4.5V
- Voltage - Supply (Max)：55V
- Voltage - Output：-
- Current - Output / Channel：1.5A
- Frequency：-
- Dimming：I2C, PWM
- Applications：Automotive
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：48-LQFP Exposed Pad
- Supplier Device Package：48-eLQFP (7x7)
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The IS32LT3365B-LQLA3-TR is a high-brightness LED dimmer designed for automotive LED array systems. It features a maximum supply voltage of 55V and delivers an output current of 1.5A per channel. The device supports operating frequencies of 2MHz and 30.72MHz, with dimming capabilities via I2C and PWM interfaces. It operates within a junction temperature range of -40°C to 150°C and is housed in a 48-pin eLQFP package measuring 7mm x 7mm.
Feature Summary
- Supports step-down (buck) and step-up (boost) DC/DC regulator topologies for flexible LED driving configurations.
- Integrates I2C and PWM dimming interfaces for precise brightness control and system communication.
- Designed for high-current applications with 1.5A output capability per channel.
Applications
- Automotive LED array systems
- High-brightness automotive lighting modules
- LED driver circuits requiring buck or boost regulation
Procurement Notes
Verify the specific suffix LQLA3 against the manufacturer's latest datasheet to confirm pinout and thermal specifications. Ensure the design accommodates the 7mm x 7mm eLQFP-48 package dimensions and the specified 55V maximum supply voltage constraints for automotive environments.
Selection Notes
Select this component for automotive applications requiring high-output current and dual-topology support. Compare against the IS32LT3365A variant to determine if the B-series revisions offer necessary updates. Validate that the 1.5A channel current meets the target LED array requirements without exceeding thermal limits.
Part Context
This part belongs to Lumissil's IS32LT series of linear and switching LED drivers optimized for automotive use. It complements other automotive-grade components like the IS32LT3136 and IS32LT3962, focusing on high-power LED arrays rather than matrix displays or low-power indicators.
Replacement Considerations
The IS32LT3365A-LQLA3-TR is a related variant within the same family. Verify functional equivalence regarding topology and interface before substitution, as suffix differences may indicate minor parameter or revision changes.
