Description
The LM3481MMX/NOPB is a switching controller from Texas Instruments, designed for automotive-grade applications. It's a current-mode controller with a peak current capability of 1A and features internal push-pull driver, current limit, thermal shutdown, frequency compensation, softstart, and adjustable undervoltage lockout. This device supports SEPIC topology, flyback converters, and has a wide input voltage range of 2.97V to 48V.
The LM3481MMX/NOPB is suitable for various applications such as LED lighting, battery chargers, portable devices, industrial equipment, and telecom systems. Its features include adjustable switching frequency up to 1MHz, ±1.5% internal reference, and low shutdown current of 10µA. The device operates over a wide temperature range of -40°C to +125°C, making it reliable in harsh environments.
Features
According to the product information, the features of LM3481MMX/NOPB are:
- Internal push-pull driver with 1-A peak current capability
- Current limit and thermal shutdown
- Frequency compensation optimized with a capacitor and resistor
- Internal softstart
- Current mode operation
- Adjustable undervoltage lockout with hysteresis
- Pulse skipping at light loads
Additionally, it has the following specifications:
- Wide supply voltage range of 2.97 V to 48 V
- 100-kHz to 1-MHz adjustable and synchronizable clock frequency
- ±1.5% (over temperature) internal reference
- 10-µA shutdown current (over temperature)
These features make it suitable for various applications such as automotive, LED lighting, telecom, battery chargers, portable devices, and industrial control systems.
Package
The package type of LM3481MMX/NOPB is MSOP-10, which is a 10-pin VSSOP (Very Small Scale Outline Package).
Manufacturer
The manufacturer of the LM3481MMX/NOPB is Texas Instruments (TI). Texas Instruments is a leading semiconductor company that designs, manufactures, tests, and sells analog and digital embedded processing systems, including semiconductors, microcontrollers, and application-specific integrated circuits (ASICs). The company was founded in 1930 and is headquartered in Dallas, Texas.
Applications
According to the product information, the application areas of LM3481MMX/NOPB are:
- Robust performance in automotive
- Adjustable switching frequency
- LED lighting applications
- Highly efficient power IC for wide input voltage range and precise regulation control
- SEPIC topology support, flyback converter capabilities, and telecom application readiness
- Perfect for battery chargers, portable devices, and industrial strength design
These areas highlight the LM3481MMX/NOPB's versatility in various industries.
Equivalent
The equivalent products of LM3481MMX/NOPB are:
- Texas Instruments' UCC28724
- STMicroelectronics' LNK605N
- ON Semiconductor's NCP1654D
These products offer similar features, such as current-mode operation, adjustable switching frequency, and high efficiency, making them suitable alternatives to the LM3481MMX/NOPB.
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