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LM5105SD/NOPB
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Product Detailed Parameters
- Description：IC GATE DRVR HALF-BRIDGE 10WSON
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Driven Configuration：Half-Bridge
- Channel Type：Synchronous
- Number of Drivers：2
- Gate Type：MOSFET (N-Channel)
- Voltage - Supply：8V ~ 14V
- Logic Voltage - VIL, VIH：0.8V, 2.2V
- Current - Peak Output (Source, Sink)：1.8A, 1.8A
- Input Type：Non-Inverting
- Rise / Fall Time (Typ)：15ns, 15ns
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：10-WDFN Exposed Pad
- Supplier Device Package：10-WSON (4x4)
- Grade：-
- Qualification：-
- High Side Voltage - Max (Bootstrap)：118 V
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Overview
The LM5105SD/NOPB is a half-bridge gate driver IC manufactured by Texas Instruments. It operates with a supply voltage range of 8V to 14V and supports high-side bootstrap voltages up to 118V. The device features non-inverting logic inputs with thresholds of 0.8V (VIL) and 2.2V (VIH). It provides symmetrical peak output currents of 1.8A for both sourcing and sinking. Typical rise and fall times are 15ns. It is housed in a 10-WSON package and functions as a synchronous two-channel driver.
Feature Summary
- Provides robust 1.8A peak drive current for efficient MOSFET switching
- Supports high-voltage operation with bootstrap capability up to 118V
- Features fast 15ns typical transition times for high-frequency applications
- Includes defined logic input thresholds for reliable signal interfacing
Applications
- High-side and low-side MOSFET gate driving in power converters
- Synchronous rectification control in DC-DC converter topologies
- Industrial motor drive systems requiring isolated or floating gate signals
Procurement Notes
Verify the specific suffix 'NOPB' confirms lead-free and RoHS compliance status against the latest manufacturer documentation. Confirm the 10-WSON package marking and pinout alignment with your PCB footprint design. Ensure the operating environment remains within the specified -40°C to +125°C junction temperature range for long-term reliability.
Selection Notes
Select this component when a dedicated half-bridge driver is required for high-voltage synchronous applications. The 1.8A drive strength suits medium-power MOSFETs, while the 118V bootstrap rating accommodates wide input voltage ranges. Consider the 10-WSON package size constraints and thermal dissipation requirements during layout planning.
Part Context
This part belongs to the LM5105 series of high-voltage half-bridge gate drivers from Texas Instruments. It is designed to replace older generations like the LM5105SD, offering enhanced environmental compliance through the NOPB designation. The series targets industrial and automotive power management solutions requiring robust gate drive performance.
Replacement Considerations
The LM5105SD/NOPB serves as the direct replacement for the discontinued LM5105SD. Verify pin compatibility and electrical specifications match before substitution.
