LM3423MH Texas Instruments In Stock
LM3423MH is a high-side N-channel MOSFET controller for boost, SEPIC, and flyback LED driver topologies by Texas Instruments. Key specs: wide input voltage range 4.5V–75V, adjustable switching frequency up to 2MHz, integrated gate driver with 1.5A peak current. From $0.79, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- LM3423MH Datasheet PDF
- Price
- From $0.7936(MOQ 1000)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM3423MH?
- Wide input voltage range 4.5V to 75V supports diverse power supply designs
- Adjustable switching frequency up to 2MHz reduces external component size
- Integrated 1.5A peak gate driver enables efficient N-channel MOSFET switching
- Analog/PWM dimming control for precise LED brightness adjustment
- Overvoltage and overcurrent protection enhances system reliability
What is LM3423MH used for?
The LM3423MH is widely used in automotive and industrial LED lighting systems requiring high-voltage boost or SEPIC topologies. It is well suited for street lighting, architectural lighting, and backlighting applications that demand accurate current regulation and dimming control. Its robust protection features also make it a reliable choice for general-purpose high-brightness LED driver designs.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the LM3423MH datasheet?
LM3423MH Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM3423MH?
Compatible alternatives and drop-in replacements for LM3423MH:
Frequently Asked Questions
What is the input voltage range of the LM3423MH?
The LM3423MH supports a wide input voltage range from 4.5V to 75V, making it suitable for automotive, industrial, and telecom power supplies where input voltages can vary significantly.
What LED driver topologies does the LM3423MH support?
The LM3423MH is designed to drive boost, SEPIC, and flyback topologies for high-side N-channel MOSFET LED drivers, offering flexibility for various LED lighting applications including street lights and backlights.
Does the LM3423MH support dimming control?
Yes, the LM3423MH supports both analog and PWM dimming, allowing precise LED brightness control. PWM dimming provides flicker-free operation commonly required in display backlighting and architectural lighting.
What is the switching frequency range of the LM3423MH?
The LM3423MH features an adjustable switching frequency that can be set up to 2MHz using an external resistor, enabling designers to optimize efficiency and minimize the size of inductors and capacitors.
What package is the LM3423MH available in?
The LM3423MH is available in a thermally enhanced HTSSOP-20 package, which provides good thermal performance for applications with moderate power dissipation requirements.
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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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1000+ | $1.0600 | $1060.00 |
| 10000+ | $0.9472 | $9472.00 |
| 100000+ | $0.7936 | $79360.00 |
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