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Product Detailed Parameters
- Description：PROTOTYPE
- Series：-
- Mfr：Texas Instruments
- Package：Bulk
- 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：9V ~ 60V
- Current - Output / Channel：2A
- Frequency：350kHz
- Dimming：Analog, PWM
- Applications：Lighting
- Operating Temperature：-40°C ~ 125°C (TA)
- 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/S7002724 is an AC-DC offline LED driver IC manufactured by Texas Instruments. It utilizes a buck topology to regulate current for single-output applications. The device supports an input voltage range of 8 V to 13 V and delivers a maximum output current of 1 A. Operating frequencies are adjustable between 30 kHz and 1 MHz. The component functions within a temperature range of -40 °C to +125 °C and features analog dimming capabilities. It is housed in a 10-pin VSSOP package.
Feature Summary
- Integrates thermal shutdown protection for enhanced operational safety
- Supports analog dimming control for brightness adjustment
- Features adjustable switching frequency for design flexibility
Applications
- Offline LED lighting systems
- AC-DC LED driver circuits
- General illumination applications requiring constant current regulation
Procurement Notes
Verify the specific suffix S7002724 against official Texas Instruments documentation to confirm exact manufacturing lot or revision details, as standard datasheets may list generic suffixes like NOPB. Ensure compatibility with required packaging specifications and confirm RoHS compliance status through authorized distributors before procurement.
Selection Notes
Select this component for designs requiring a buck topology for LED current regulation. Consider the 1 A output limit and 8 V to 13 V input range when defining circuit parameters. The VSSOP-10 package size should be evaluated against available PCB space constraints. Verify that the operating temperature range meets the environmental requirements of the target application.
Part Context
This part belongs to the LM3444 series of LED drivers from Texas Instruments. These components are designed specifically for driving LEDs from AC mains or isolated DC sources. The series offers integrated power switches and control logic to simplify the design of high-efficiency LED power supplies compared to discrete solutions.
Replacement Considerations
The LM3444MMX/NOPB is a publicly confirmed substitute part number offering identical electrical characteristics and pinout configuration. Verify that the specific suffix differences do not impact packaging or quality level requirements for the intended production run.
