ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC LED DRV LIN PWM 36WLCSP
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：-
- Internal Switch(s)：No
- Number of Outputs：8
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：34.5mA
- Frequency：29kHz
- Dimming：PWM
- Applications：General Purpose
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：36-XFBGA, WLCSP
- Supplier Device Package：36-WLCSP (2.93x2.93)
- Grade：-
- Qualification：-
Download product information
Overview
The IS31FL3745-CLS4-TR is a linear LED driver IC featuring 8 outputs with a constant current of 34.5mA per channel. It supports PWM dimming at a frequency of 29kHz and operates within a voltage range of 2.7V to 5.5V. The device is housed in a compact 36-WLCSP package measuring 2.93mm x 2.93mm. It functions reliably across an operating temperature range of -40°C to +125°C (TA).
Feature Summary
- Linear LED driver architecture with integrated PWM dimming capability.
- Compact 36-WLCSP surface-mount packaging for space-constrained designs.
- Wide operating temperature range suitable for industrial environments.
Applications
- General purpose LED lighting applications
- Matrix LED displays
- Industrial signaling
Procurement Notes
Verify the specific suffix CLS4 against the manufacturer's latest datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the WLCSP package dimensions align with your PCB footprint constraints. Confirm that the 34.5mA output current meets the load specifications for your target LEDs.
Selection Notes
Select this component when a low-profile, multi-channel linear driver is required for general-purpose LED control. The 29kHz PWM frequency offers a balance between flicker-free performance and power efficiency. Consider the 36-WLCSP form factor if board real estate is limited compared to larger QFN or TSSOP alternatives.
Part Context
This part belongs to the Lumissil IS31FL3x series of LED lighting drivers, which are designed for industrial applications. These drivers typically support a wide range of LED counts and include EMI noise reduction technologies. The IS31FL3745 specifically targets matrix configurations requiring synchronized bus control.
Replacement Considerations
Check for direct substitutes within the IS31FL37xx family, such as the IS31FL3742A-QFLS4-TR, ensuring interface compatibility and pin alignment. Verify that alternative packages like QFN-48 do not require significant PCB redesign if physical size is not the primary constraint.
