Manufacturer Part Number
LM5109ASD
Manufacturer
Texas Instruments
Introduction
The LM5109ASD is a high-voltage, high-speed power IC from Texas Instruments designed for driving N-Channel MOSFETs in a half-bridge configuration.
Product Features and Performance
Capable of driving two N-Channel MOSFETs in a half-bridge configuration
Operates over a supply voltage range of 8V to 14V
Features non-inverting inputs
Provides peak output current of 1A (source and sink)
Fast rise and fall times of 15ns typical, enhancing switching speed
High side voltage can go up to 108V (bootstrap), suitable for high-voltage applications
Supports a wide operating temperature range from -40°C to 125°C
Product Advantages
High efficiency due to fast switching characteristics
Enhanced robustness with up to 108V high side voltage handling capability
Broad applicability due to a wide supply voltage range
Suitable for harsh environments with a wide temperature operating range
Key Technical Parameters
Supply Voltage: 8V ~ 14V
Logic Voltage VIL, VIH: 0.8V, 2.2V
Peak Output Current (Source, Sink): 1A, 1A
High Side Voltage Max (Bootstrap): 108V
Rise / Fall Time (Typ): 15ns
Operating Temperature: -40°C ~ 125°C (TJ)
Quality and Safety Features
Robust construction, designed for reliable performance in stringent conditions
Wide operating temperature range promises stability in varying environmental conditions
Compatibility
Designed for use with N-Channel MOSFET gate driving, ensuring compatibility with a broad range of high-speed switching applications
Application Areas
Power supply circuits
Motor control systems
Inverters and converters
High-power LED driving
Product Lifecycle
This product has been discontinued at Digi-Key, suggesting it may be nearing end of life with potential for limited availability. Users should consider seeking replacements or upgrades.
Several Key Reasons to Choose This Product
High switching speed for efficient operation
Supports high voltage applications with up to 108V high side voltage
Versatile across a range of power management applications due to compatibility with N-Channel MOSFETs
Reliable performance guaranteed by Texas Instruments' reputation and the device's robust build and temperature resilience
Although discontinued at Digi-Key, its performance characteristics may still make it the ideal choice for specific legacy systems or specialized applications where newer models do not offer the same benefits
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