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Product Detailed Parameters
- Description：IC LED DRV LIN PWM 84MA 28ETSSOP
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Constant Current
- Internal Switch(s)：No
- Number of Outputs：8
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：84mA
- Frequency：-
- Dimming：PWM
- Applications：LED Lighting
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：28-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：28-eTSSOP
- Grade：-
- Qualification：-
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Overview
The IS31FL3738-ZLS4-TR is a general-purpose LED matrix driver manufactured by Lumissil Microsystems. It supports a 6x8 dot matrix configuration with a 1/12 cycle rate and is programmable via an I2C compatible interface. The device operates within a supply voltage range of 2.7 V to 5.5 V and features a maximum power consumption of 2.17 mA. It provides high-level and low-level output currents of 8 mA each, supporting up to 48 LEDs. The component is housed in a 28-TSSOP package with an exposed pad and is rated for operation between -40°C and +125°C.
Feature Summary
- Supports 6x8 dot matrix LED configurations with 1/12 cycle rate
- Programmable via I2C compatible interface for individual LED control
- Integrated linear constant current sinks with PWM dimming capability
Applications
- LED lighting systems
- General purpose LED display drivers
Procurement Notes
Verify the specific suffix ZLS4 against the official datasheet to confirm the 28-TSSOP package variant. Ensure the design accommodates the required I2C bus connections and thermal dissipation for the exposed pad. Confirm that the 8 mA output current meets the target LED specifications. Validate compliance with the -40°C to +125°C operating temperature range for the intended environment.
Selection Notes
Select this component for applications requiring precise control of a 6x8 LED matrix through a standard I2C interface. It is suitable for designs needing low power consumption and wide operating temperature ranges. Consider the 28-TSSOP package constraints for PCB layout. Verify compatibility with the system's logic levels and available I2C resources before integration.
Part Context
This part belongs to the IS31FL37xx series of LED display drivers from Lumissil Microsystems. These devices are designed for efficient management of LED matrices using minimal external components. The series typically integrates constant current sources and PWM dimming functions to simplify system architecture and reduce overall bill of materials cost.
Replacement Considerations
Check for direct pin-to-pin replacements within the IS31FL37xx family, such as the IS31FL3738-QFLS4-TR, ensuring package and electrical parameters match. Verify if alternative packages like QFN offer better thermal performance or space savings for the same functionality.
