LM5113 Half-Bridge Gate Drivers

Texas Instruments offers the LM5113 100 V 1.2 A / 5 A, half-bridge gate driver for enhancement mode GaN FETs

Image of Texas Instruments' LM5113 Half-Bridge Gate DriversTexas Instruments' LM5113 is designed to drive both the high-side and the low-side enhancement mode gallium nitride (GaN) FETs in a synchronous buck or a half-bridge configuration. The floating high-side driver is capable of driving a high-side enhancement mode GaN FET operating up to 100 V. The high-side bias voltage is generated using a bootstrap technique and is internally clamped at 5.2 V, which prevents the gate voltage from exceeding the maximum gate-source voltage rating of enhancement mode GaN FETs. The inputs of the LM5113 are TTL logic compatible and can withstand input voltages up to 14 V regardless of the VDD voltage. The LM5113 has split gate outputs, providing flexibility to adjust the turn-on and turn-off strength independently.

In addition, the strong sink capability of the LM5113 maintains the gate in the low state, preventing unintended turn-on during switching. The LM5113 can operate up to several MHz. The LM5113 is available in a standard 10-pin WSON package and a 12-bump DSBGA package. The 10-pin WSON package contains an exposed pad to aid power dissipation. The DSBGA package offers a compact footprint and minimized package inductance.

Features
  • Independent high-side and low-side TTL logic inputs
  • 1.2 A/5 A peak source/sink current
  • High-side floating bias voltage rail operates up to 100 VDC
  • Internal bootstrap supply voltage clamping
  • Split outputs for adjustable turn-on/turn-off strength
  • 0.6 Ω/2.1 Ω pull-down/pull-up resistance
  • Fast propagation times (28 ns typical)
  • Excellent propagation delay matching (1.5 ns typical)
  • Supply rail undervoltage lockout
  • Low power consumption
Applications
  • Current-fed push-pull converters
  • Half- and full-bridge converters
  • Synchronous buck converters
  • Two-switch forward converters
  • Forward with active clamp converters

LM5113 Half-Bridge Gate Drivers

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
IC GATE DRVR HALF BRDG 5A 12SMDLM5113TME/NOPBIC GATE DRVR HALF BRDG 5A 12SMD41217 - Immediate
10001 - Factory Stock
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IC GATE DVR HALF BRIDGE 5A 10SONLM5113SDX/NOPBIC GATE DVR HALF BRIDGE 5A 10SON4270 - Immediate
10001 - Factory Stock
View Details
IC GATE DVR HALF BRIDGE 4A 10SONLM5113SD/NOPBIC GATE DVR HALF BRIDGE 4A 10SON3229 - Immediate
10001 - Factory Stock
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IC GATE DRIVER HALF BRIDGE 10SONLM5113SDE/NOPBIC GATE DRIVER HALF BRIDGE 10SON1173 - Immediate
5886 - Factory Stock
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Evaluation Boards

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
DEV GAN 1/2 BRIDGE 2015 W/LM5113EPC9201DEV GAN 1/2 BRIDGE 2015 W/LM51130View Details
BOARD EVAL FOR LM5113LLPLM5113LLPEVB/NOPBBOARD EVAL FOR LM5113LLP0View Details
Published: 2017-05-23