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Product Detailed Parameters
- Description：IC LED DRVR CTRLR PWM 16ETSSOP
- Series：-
- Mfr：Lumissil Microsystems
- Package：Cut Tape (CT)
- Type：DC DC Controller
- Topology：Step-Up (Boost)
- Internal Switch(s)：No
- Number of Outputs：4
- Voltage - Supply (Min)：4.5V
- Voltage - Supply (Max)：33V
- Voltage - Output：50V
- Current - Output / Channel：180mA
- Frequency：100kHz ~ 1MHz
- Dimming：PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：16-eTSSOP
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The IS32BL3554-ZLA3-TR is a four-channel boost-type LED driver IC manufactured by Lumissil Microsystems. It provides constant current output of 180 mA per channel with a maximum supply voltage of 33 V and an operating frequency of 1 MHz. The device operates within a temperature range of -40°C to +125°C and features current mode outputs. Packaged in a 16-pin eTSSOP, it is designed for high-efficiency LED lighting applications requiring precise channel control.
Feature Summary
- Four independent constant current channels for uniform LED illumination
- Boost topology supports driving LEDs from lower input voltages
- Integrated fault protection mechanisms ensure system reliability
- Wide operating temperature range suitable for automotive environments
Applications
- Automotive interior ambient lighting
- Exterior vehicle accent lighting systems
- General solid-state lighting modules
- Battery-powered portable lighting devices
Procurement Notes
Verify the NRND status before integration, as this component is not recommended for new designs. Confirm package integrity upon receipt due to moisture sensitivity classification. Ensure ESD precautions are followed during handling. Cross-reference pinouts with the official datasheet to avoid layout errors. Validate supplier authenticity through authorized distribution channels only.
Selection Notes
Select this part when four-channel boost regulation is required with 180 mA per channel capability. Consider the 16-pin eTSSOP package constraints for PCB real estate. Evaluate thermal management needs given the 125°C maximum junction temperature. Compare against linear drivers if input-output voltage differential is minimal to improve efficiency.
Part Context
This component belongs to the IS32BL series of LED drivers from Lumissil Microsystems. It complements other automotive-grade lighting solutions like the IS32LT series. The family focuses on providing reliable, high-performance LED control for demanding transportation and industrial applications where longevity and precision are critical.
Replacement Considerations
Check for direct pin-compatible alternatives within the Lumissil portfolio. Verify electrical parameters match exactly if substituting with third-party components. Ensure the replacement supports the same boost topology and channel count.
