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1.2-A/5-A, 90-V half bridge gate driver for GaNFET

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LM5113TME/NOPB General Description

The LM5113 device 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 turnon and turnoff strength independently.

The LMG1205 is an enhancement over the LM5113. The LMG1205 takes the design of the LM5113 and includes start-up logic, level shifter, and power-off Vgs clamp enhancements to provide a more robust solution.

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

Texas Instruments, Inc Inventory

Key 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
    turnon/turnoff strength
  • 0.6-Ω / 2.1-Ω pulldown/pullup resistance
  • Fast propagation times (28 ns typical)
  • Excellent propagation delay matching
    (1.5 ns typical)
  • Supply rail undervoltage lockout
  • Low power consumption
Texas Instruments, Inc Original Stock
Texas Instruments, Inc Inventory


Category Integrated Circuits (ICs)Power Management (PMIC)Gate Drivers Mfr Texas Instruments
Series - Package Tape & Reel (TR)Cut Tape (CT)Digi-Reel®
Product Status Not For New Designs Digi-Key Programmable Not Verified
Driven Configuration Half-Bridge Channel Type Independent
Number of Drivers 2 Gate Type N-Channel MOSFET
Voltage - Supply 4.5V ~ 5.5V Logic Voltage - VIL, VIH 1.76V, 1.89V
Current - Peak Output (Source, Sink) 1.2A, 5A Input Type Non-Inverting
High Side Voltage - Max (Bootstrap) 107 V Rise / Fall Time (Typ) 7ns, 1.5ns
Operating Temperature -40°C ~ 125°C (TJ) Mounting Type Surface Mount
Package / Case 12-WFBGA, DSBGA Supplier Device Package 12-DSBGA
Base Product Number LM5113 Bus voltage (max) (V) 107
Power switch GaNFET, MOSFET Input VCC (min) (V) 4.5
Input VCC (max) (V) 5.5 Peak output current (A) 5
Operating temperature range (°C) -40 to 125 Undervoltage lockout (typ) (V) 4
Rating Catalog Propagation delay time (µs) 0.03
Rise time (ns) 7 Fall time (ns) 3.5
Iq (mA) 0.15 Input threshold TTL
Channel input logic TTL Negative voltage handling at HS pin (V) -5
Features Bootstrap supply voltage clamp, Split outputs on high and low side Driver configuration Dual, Independent
feature-driver-type High and Low Side feature-driver-configuration Non-Inverting
feature-bridge-type Half Bridge feature-number-of-drivers 2
feature-high-and-low-sides-dependency Independent feature-type FET
feature-maximum-rise-time-ns 7(Typ) feature-maximum-fall-time-ns 1.5(Typ)
feature-maximum-operating-frequency-khz feature-maximum-propagation-delay-time-ns 28(Typ)
feature-minimum-operating-supply-voltage-v 4.5 feature-maximum-operating-supply-voltage-v 5.5
feature-typical-input-low-threshold-voltage-v 1.66 feature-typical-input-high-threshold-voltage-v 2.06
feature-peak-output-current-a 5(Typ) feature-maximum-power-dissipation-mw
feature-packaging Tape and Reel feature-rad-hard
feature-pin-count 12 feature-supplier-package DSBGA
feature-standard-package-name BGA feature-cecc-qualified No
feature-esd-protection Yes feature-escc-qualified
feature-military No feature-aec-qualified No
feature-aec-qualified-number feature-eccn-code EAR99
feature-svhc No

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Ratings and Reviews

Z**e Aug 12, 2022

It came quickly. Everything is whole and works)

N**s May 16, 2022

Fuuu! It came in 5 days. The goods are normal, factory packaging, it remains to check.



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Availability: 3132 pieces

Qty. Unit Price(USD) Ext. Price
1+ $3.077 $3.08
10+ $2.695 $26.95
30+ $2.468 $74.04
250+ $2.238 $559.50
500+ $2.133 $1,066.50
1000+ $2.085 $2,085.00

The prices below are for reference only.