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Product Detailed Parameters
- Description：IC LED DRIVER OFFL PWM 40TQFN
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT),Cut Tape (CT)
- Type：AC DC Offline Switcher
- Topology：Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：16
- Voltage - Supply (Min)：4.5V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：20MHz
- Dimming：PWM
- Applications：Backlight, Signage
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：40-WFQFN Exposed Pad
- Supplier Device Package：40-TQFN (6x6)
- Grade：-
- Qualification：-
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Overview
The MSL3162BT-R is an LED lighting driver IC manufactured by Microchip Technology, designed for driving 16-string RGB and white LEDs. It operates as an AC/DC offline switcher with step-down (buck) and step-up (boost) topologies. The device features a TQFN-40 package and supports PWM dimming. Electrical specifications include a supply voltage range of 4.5 V to 5.5 V, a maximum power dissipation of 2.1 W, and a maximum supply current of 100 mA. It functions within a temperature range of -40°C to +85°C.
Feature Summary
- Integrates AC/DC offline switching capabilities with buck and boost topologies for direct mains connection applications.
- Provides independent control for 16 output channels supporting both RGB and white LED configurations.
- Supports pulse-width modulation (PWM) dimming for precise brightness adjustment.
Applications
- RGB and white LED string drivers
- AC/DC offline LED lighting systems
- General illumination fixtures requiring integrated switching
Procurement Notes
Verify component status carefully as the MSL3162BT-R is listed as obsolete or end-of-life by the manufacturer. Availability is limited to existing stock or surplus markets. Confirm package integrity and authenticity through authorized channels before procurement. Design-in decisions should account for long-term supply constraints associated with discontinued components.
Selection Notes
Select this component for designs requiring integrated offline switching and multi-channel LED control in a compact form factor. Ensure input voltage requirements align with the specified 4.5 V to 5.5 V range. Consider thermal management due to the 2.1 W power dissipation limit in the TQFN-40 package. Evaluate alternative active parts if long-term production availability is critical.
Part Context
This part belongs to the Microchip LED driver family, specifically engineered for offline applications. It combines power conversion and LED driving functions into a single integrated circuit. The TQFN-40 package provides a small footprint suitable for space-constrained lighting designs. It represents a solution for simplifying bill-of-materials in AC-powered LED fixtures.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. As the component is marked obsolete, engineers must identify functional equivalents from current product lines or perform a full redesign using actively manufactured LED driver ICs with similar channel counts and switching topologies.
