LM5109BMA Part Information

Details for LM5109BMA by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Driver & Interface ICs

Part Description

The LM5109B device is a cost-effective, high-voltage gate driver designed to drive both the high-side and the low-side N-channel MOSFETs in a synchronous buck or a half-bridge configuration. The floating high-side driver is capable of working with rail voltages up to 90 V. The outputs are independently controlled with cost-effective TTL and CMOS-compatible input thresholds. The robust level shift technology operates at high speed while consuming low power and providing clean level transitions from the control input logic to the high-side gate driver. Undervoltage lockout is provided on both the low-side and the high-side power rails. The device is available in the 8-pin SOIC and thermallyenhanced 8-pin WSON packages.

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Part Features

  • 1-A Peak Output Current (1.0-A Sink and 1.0-A Source)
  • 8-Pin SOIC and Thermally-Enhanced 8-Pin
  • Bootstrap Supply Voltage to 108-V DC
  • Drives 1000-pF Load With 15-ns Rise and Fall Times
  • Drives Both a High-Side and Low-Side N-Channel MOSFET
  • Excellent Propagation Delay Matching (2 ns Typical)
  • Fast Propagation Times (30 ns Typical)
  • Inputs Compatible With Independent TTL and CMOS
  • Low Power Consumption
  • Supply Rail Undervoltage Lockout

Part Specifications

Driver Configuration Half Bridge
Peak Output Current 1A
Supply Voltage Min 8V
Supply Voltage Max 14V
Driver Case Style SOIC
No. of Pins 8Pins
Input Delay 29ns
Output Delay 27ns
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Base Number 5109
Device Type MOSFET
Module Configuration Half Bridge
No. of Outputs 2Outputs
Operating Temperature Range -40°C to +125°C
Output Voltage 108.3V
Output Voltage Max 0.75V
Supply Voltage Range 8V to 14V
Termination Type Surface Mount Device
RoHS Compliant

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