L6743D:High current MOSFET driver

L6743D is a flexible, high-frequency dual-driver specifically designed to drive N-channel MOSFETs connected in synchronous-rectified buck topology.

Combined with ST PWM controllers, the driver allows implementing complete voltage regulator solutions for modern high-current CPUs and DCDC conversion in general. L6743D embeds high-current drivers for both high-side and lowside MOSFETS. The device accepts flexible power supply (5 V to 12 V) to optimize the gatedrive voltage for high-side and low-side maximizing the system efficiency.

The bootstrap diode is embedded saving the use of external diodes. Anti shoot-through management avoids high-side and low-side MOSFET to conduct simultaneously and, combined with adaptive dead-time control, minimizes the LS body diode conduction time.

L6743D embeds preliminary OV protection: after Vcc overcomes the UVLO and while the device is in HiZ, the LS MOSFET is turned ON to protect the load in case the output voltage overcomes a warning threshold protecting the output against HS failures.

The driver is available is SO8 package.

Key Features

  • SO8 package
  • Preliminary OV protection
  • Flexible gate-drive: 5 V to 12 V compatible
  • Adaptive dead-time management
  • Dual MOSFET driver for synchronous rectified converters
  • Integrated bootstrap diode
  • High driving current for fast external MOSFET switching
  • Enable pin
  • High-impedance (HiZ) management for output stage shutdown
  • High frequency operation
产品规格
DescriptionVersionSize
DS6010: High current MOSFET driver1.1417 KB
手册
DescriptionVersionSize
Brochure Power management guide05.20167 MB
样片和购买
型号PackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)Unit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
L6743DTRSO-8Tape And Reel0125--NECEAR99MOROCCO
L6743DSO-8Tube0125--NECEAR99-
质量和可靠性
型号PackageGradeRoHS Compliance GradeMaterial Declaration**
L6743DTRSO-8IndustrialEcopack1md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_b5o7-wspc-up31ba5.pdf
md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_b5o7-wspc-up31ba5.xml
L6743DSO-8IndustrialEcopack1md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_b5o7-wspc-up31ba5.pdf
md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_b5o7-wspc-up31ba5.xml
High current MOSFET driver L6743D
circuit_diagram_15262_thumbnail.png L6743D
Very low drop voltage regulators with inhibit KFXX
md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_b5o7-wspc-up31ba5.pdf L6743D
md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_b5o7-wspc-up31ba5.xml L6743D