LM5105SD/NOPB Part Information

Details for LM5105SD/NOPB by Texas Instruments

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

Part Description

The LM5105 is a high-voltage gate driver designed to drive both the high-side and low-side N–Channel MOSFETs in a synchronous buck or half-bridge configuration. The floating high-side driver is capable of working with rail voltages up to 100 V. The single control input is compatible with TTL signal levels and a single external resistor programs the switching transition dead time through tightly matched turnon delay circuits. A high-voltage diode is provided to charge the high-side gate-drive bootstrap capacitor. The robust level shift technology operates at high speed while consuming low power and provides clean output transitions. Undervoltage lockout disables the gate driver when either the low-side or the bootstrapped high-side supply voltage is below the operating threshold. The LM5105 is offered in the thermally enhanced WSON plastic package.

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Part Features

  • 1.8-A Peak Gate Drive Current
  • Bootstrap Supply Voltage Range up to 118-V DC
  • Drives 1000 pF With 15-ns Rise and Fall Time
  • Drives Both a High-Side and Low-Side N-Channel MOSFET
  • Enable Input Pin
  • Fast Turnoff Propagation Delays (26 ns Typical)
  • Integrated Bootstrap Diode
  • Low Power Consumption
  • Package: Thermally Enhanced 10-Pin WSON
  • Programmable Turnon Delays (Dead Time)
  • Single TTL Compatible Input
  • Supply Rail Undervoltage Lockout

Part Specifications

Driver Configuration Half Bridge
Peak Output Current 1.8A
Supply Voltage Min 8V
Supply Voltage Max 14V
Driver Case Style LLP
No. of Pins 10Pins
Input Delay 105ns
Output Delay 26ns
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 5105
Device Type MOSFET
I / O Delay 595ns
Logic Function Number 5105
Module Configuration Half Bridge
No. of Outputs 2Outputs
Operating Temperature Range -40°C to +125°C
Output Sink Current 1.6A
Output Voltage 118.3V
Output Voltage Max 18.3V
Supply Voltage Range 8V to 14V
Termination Type Surface Mount Device
RoHS Compliant

Alternative Part Descriptions

  • MOSFET DRIVER, HALF BRIDGE, LLP-10; DRIV; MSL:MSL 1 - Unlimited; SVHC:No SVHC (15-Jan-2019) RoHS Compliant: Yes | Newark Electronics
  • 1.8-A, 1.6-A 100-V half bridge gate driver with 8-V UVLO and programmable dead-time | Texas Instruments

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