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Product Detailed Parameters
- Description：IC LED DRVR OFFL ANALOG 10VSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：AC DC Offline Switcher
- Topology：Step-Down (Buck)
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：8V
- Voltage - Supply (Max)：13V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：-
- Dimming：Analog
- Applications：Lighting
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：10-VSSOP
- Grade：-
- Qualification：-
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Overview
The LM3444MMX/NOPB is an AC-DC offline LED driver IC from Texas Instruments, designed for single-output buck topology applications. It supports a supply voltage range of 8 V to 13 V and delivers a maximum output current of 1 A. The device operates within a switch frequency range of 30 kHz to 1 MHz and functions reliably across temperatures from -40 °C to +125 °C. Packaged in a 10-pin VSSOP, it features analog dimming capabilities and includes thermal shutdown protection.
Feature Summary
- Supports analog dimming control for brightness adjustment
- Features adjustable switching frequency for design flexibility
- Includes integrated thermal shutdown for enhanced reliability
Applications
- Offline AC-DC LED lighting systems
- General illumination drivers requiring buck topology
- Compact LED modules with limited space constraints
Procurement Notes
Verify the complete part number including the suffix /NOPB to ensure lead-free compliance and specific package variant accuracy. Confirm that the application circuit matches the specified 8 V to 13 V input range and 1 A output capability. Check for any recent lifecycle notices or obsolescence warnings directly from Texas Instruments before finalizing procurement decisions.
Selection Notes
Select this component when designing offline LED drivers requiring a single output with buck topology. Ensure the design accommodates the 10-pin VSSOP package dimensions and thermal requirements. Verify that the required switching frequency falls within the 30 kHz to 1 MHz range and that analog dimming meets system performance needs without exceeding the 1 A output limit.
Part Context
This part belongs to the LM3444 series of LED lighting drivers manufactured by Texas Instruments. It is specifically engineered for offline AC-DC conversion applications where compact size and high efficiency are prioritized. The device integrates essential control functions into a small form factor, suitable for modern solid-state lighting products.
Replacement Considerations
Consult official Texas Instruments documentation for verified cross-reference part numbers. Do not assume functional equivalence with other LM34xx series devices without verifying pinout, electrical parameters, and package compatibility through official datasheets.
