LM3464AMH/NOPB Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
LM3464AMH/NOPB is a 4-channel LED driver IC with dynamic headroom control and thermal control interfaces from Texas Instruments in an HTSSOP-28 package. Supports -40°C to 125°C industrial temperature range with 12-segment display drive capability. Available worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 29
- Lifecycle
- ACTIVE
- Datasheet
- LM3464AMH/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.2000(MOQ 96)
- 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 LM3464AMH/NOPB?
- Dynamic headroom control minimizes power dissipation by adaptively reducing supply voltage margin over each LED string
- 4-channel LED current driver with 12-segment control enables complex lighting patterns and multi-zone illumination
- Integrated thermal control interface enables closed-loop system thermal management without external microcontroller logic
- Industrial-grade -40°C to 125°C operating range for automotive and outdoor LED lighting applications
What is LM3464AMH/NOPB used for?
The LM3464AMH/NOPB is designed for automotive interior and exterior LED lighting systems, industrial indicator panels, and architectural lighting where thermal management and energy efficiency are critical. Its dynamic headroom control reduces wasted power in the LED driver supply chain, making it suitable for battery-powered or thermally constrained LED luminaires. The 4-channel architecture with 12-segment control also supports multi-zone LED backlights in commercial displays and signage requiring independent current regulation per zone.
What are the specifications of LM3464AMH/NOPB?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Input Characteristics | STANDARD |
| Interface IC Type | LED DISPLAY DRIVER |
| JESD-30 Code | R-PDSO-G28 |
| JESD-609 Code | e3 |
| Number of Channels | 4 |
| Number of Functions | 1 |
| Number of Segments | 12 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP28,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max | 3mA |
| Supply Voltage-Max | 80V |
| Supply Voltage-Min | 12V |
| Supply Voltage-Nom | 48V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.635mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the LM3464AMH/NOPB datasheet?
LM3464AMH/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM3464AMH/NOPB?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does dynamic headroom control in the LM3464AMH/NOPB reduce power dissipation in LED driver circuits?
Dynamic headroom control monitors the voltage across each LED string current sink and adjusts the upstream boost or buck converter output voltage to maintain just enough headroom (typically 0.5 V to 1 V) above the LED string voltage. This eliminates excess voltage drop across the current-sink transistors, reducing total power dissipation by up to 30% compared to fixed-supply LED drivers.
What operating temperature range does the LM3464AMH/NOPB support, and why does this matter for automotive LED designs?
The LM3464AMH/NOPB is specified across -40°C to 125°C, covering the full automotive temperature range for under-hood and exterior lighting applications. At 125°C ambient, the device maintains regulated LED current output without requiring derating, enabling reliable operation in headlight clusters and brake light assemblies where heat soak is common.
How many LED channels and segments does the LM3464AMH/NOPB support, and how does that map to a multi-zone backlight design?
The device drives 4 independent current channels across 12 LED segments. In a multi-zone LCD backlight, this allows independent brightness control of 4 zones with up to 3 LED segments per zone, enabling local dimming that improves contrast ratio by reducing backlight output in dark areas of the displayed image.
When evaluating LM3464AMH/NOPB for an outdoor LED sign, what thermal interface features help protect the system at high ambient temperatures?
The integrated thermal control interface allows the LM3464AMH/NOPB to receive over-temperature signals from external sensors placed near LED modules and respond by reducing drive current or disabling channels before junction temperature exceeds safe limits. Combined with the -40°C to 125°C rating and HTSSOP-28 exposed pad, the device dissipates up to several hundred milliwatts to the PCB copper at 85°C ambient without a heatsink.
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Why Buy from FindMyChip
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.
More from Texas Instruments
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| 96+ | $5.1400 | $493.44 |
| 288+ | $4.9900 | $1437.12 |
| 500+ | $3.6000 | $1800.00 |
| 1000+ | $3.4000 | $3400.00 |
| 10000+ | $3.2000 | $32000.00 |
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