LM3432MHX Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The LM3432MHX is a 6-channel LED lighting driver IC designed for LCD backlight and general LED panel applications in a 28-pin thin small-outline package with exposed heat sink. It provides independent control of 6 LED string segments without multiplexed scanning, ensuring uniform brightness across multiple LED channels. Available from authorized distributors with worldwide shipping for lighting and display system designs.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- OBSOLETE
- Datasheet
- LM3432MHX Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM3432MHX?
- 6 independent LED string channels with non-multiplexed drive for uniform brightness and flicker-free LCD backlight performance
- Thin SOIC-28 package with integrated heat-sink slug enabling efficient thermal dissipation in compact display backlight modules
- Dedicated LED display driver architecture controlling up to 6 segments simultaneously for edge-lit and direct-lit LCD panel applications
What is LM3432MHX used for?
The LM3432MHX is used in LCD monitor and television backlight systems where its 6-channel LED driver maintains consistent brightness across large display panels. It is also applied in industrial display backlights, point-of-sale terminal screens, and commercial signage where independent LED string control over 6 channels eliminates brightness variation between zones.
What are the specifications of LM3432MHX?
| YTEOL | 0 |
| Interface IC Type | LED DISPLAY DRIVER |
| JESD-30 Code | R-PDSO-G28 |
| JESD-609 Code | e0 |
| Multiplexed Display Capability | NO |
| Number of Functions | 1 |
| Number of Segments | 6 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage-Max | 40V |
| Supply Voltage-Min | 6V |
| Supply Voltage-Nom | 18V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | TIN LEAD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the LM3432MHX datasheet?
LM3432MHX Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM3432MHX?
Compatible alternatives and drop-in replacements for LM3432MHX:
Frequently Asked Questions
How many independent LED channels does the LM3432MHX support in a backlight design?
The LM3432MHX drives 6 independent LED string channels simultaneously without multiplexing, allowing separate current control and fault detection per channel; this architecture prevents a single open-circuit LED string from extinguishing adjacent backlight zones in LCD monitors, televisions, and large-format display panels.
What package does the LM3432MHX use and how does the heat-sink slug affect thermal management?
The LM3432MHX is housed in a 28-pin thin small-outline package (TSSOP-28 with exposed heat-sink slug) that transfers junction heat directly to a PCB copper plane, reducing thermal resistance by 30% to 50% versus standard SOIC packages without a slug, enabling higher LED drive currents across all 6 channels at elevated ambient temperatures.
What is the advantage of a non-multiplexed 6-channel design in the LM3432MHX for LCD backlighting?
Non-multiplexed operation means all 6 LED channels are driven continuously rather than time-division scanned, eliminating the flicker artifacts that multiplexed drivers produce at refresh rates below 200 Hz; this is critical in LCD backlights for professional monitors, medical displays, and video-rate imaging where PWM dimming at frequencies below 1 kHz would cause perceptible flicker.
Can the LM3432MHX be used in general LED lighting beyond LCD backlight applications?
Yes, the LM3432MHX's 6 independent constant-current channels can drive architectural LED strips, stage lighting zones, and industrial indicator arrays where each channel handles a separate color or segment; the non-multiplexed 6-channel architecture supports up to 6 distinct strings in parallel, and the 28-pin package fits standard surface-mount assembly lines for lighting module production.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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