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STMicroelectronics L6498 High-Voltage Half-Bridge Drivers

STMicroelectronics L6498 High-Voltage Half-Bridge Drivers are high-voltage devices manufactured with BCD6 "offline" technology. The drivers are single-chip half-bridge gate drivers for N-channel power MOSFETs or IGBTs. The high-side (floating) section is designed to stand a DC voltage rail up to 500V, with 600V transient withstand voltage. The logic inputs are CMOS/TTL compatible down to 3.3V for easy interfacing control units like microcontrollers or DSP.

Both device outputs can sink 2.5A and source 2A, making the L6498 particularly suited for medium and high-capacity power MOSFETs\IGBTs. The outputs cannot be simultaneously driven high thanks to an integrated interlocking function. The independent UVLO protection circuits present on the lower and upper driving sections prevent the power switches from being operated in low efficiency or dangerous conditions. The integrated bootstrap diode and all of the integrated features of this driver make the application PCB design simpler and more compact to reduce the overall bill of material.

Features

  • Transient withstand voltage 600V
  • dV/dt immunity ± 50V/ns in full temperature range
  • Driver current capability:
    • 2A source typ. at 25°C
    • 2.5A sink typ. at 25°C
  • Short propagation delay: 85ns
  • Switching times 25ns rise/fall with 1nF load
  • Integrated bootstrap diode
  • Single input and shutdown pin
  • Adjustable deadtime
  • 3.3V, 5V TTL/CMOS inputs with hysteresis
  • UVLO on both high-side and low-side sections
  • Compact and simplified layout
  • Bill of material reduction
  • Flexible, easy and fast design

Applications

  • Motor driver for home appliances, factory automation, industrial drives and fans
  • HID ballasts
  • Induction heating
  • Welding
  • Industrial inverters
  • UPS
  • Power supply units
  • DC-DC converters

Block diagram SO-8

Block Diagram - STMicroelectronics L6498 High-Voltage Half-Bridge Drivers

Block diagram SO-14

Block Diagram - STMicroelectronics L6498 High-Voltage Half-Bridge Drivers

Associated Tool

STMicroelectronics EVAL6498L Evaluation Boards

Designed to evaluate L6498L high voltage gate driver with BCD6 OFF-LINE technology.

Learn Moreo STMicroelectronics EVAL6498L Evaluation Boards View Productspowiązany z STMicroelectronics EVAL6498L Evaluation Boards
Opublikowano: 2017-11-27 | Zaktualizowano: 2022-06-23