IRS27951

600V Half Bridge High Voltage Controller IC for Fixed/Variable Frequency DC-DC Resonant Converters with Overcurrent Vs Threshold Fixed at 2V

ParametricIRS27951
VCC  min  max10.0V  20.0V
Adjustable Dead Time200-2000
OCP Threshold2.0V
Output Current (Source)300.0mA
Package8-lead SOIC
Frequency  min  max25.0kHz  500.0kHz
Output Current (Sink)900.0mA
Sales Product NameIRS27951
OPNIRS27951SPBF
Product Statusdiscontinued
Package NameSOIC 8N
Completely lead freeyes
Halogen freeyes
RoHS compliantyes
Packing Size95
Packing TypeTUBE
Moisture Level2
OPNIRS27951STRPBF
Product Statusactive
Package NameSOIC 8N
Completely lead freeyes
Halogen freeyes
RoHS compliantyes
Packing Size2500
Packing TypeTAPE & REEL
Moisture Level2
Benefits:
  • Simple primary-side control solution for fixed and variable frequency DC-DC resonant converters.
  • Max 500kHz per channel output with 50% duty cycle
  • Floating channel bootstrap operation up to +600Vdc
  • Programmable minimum and maximum switching frequency
  • Programmable soft start frequency and soft start time
  • Programmable dead time
  • Micropower start-up and ultra low quiescent current
  • Over-current protection using low side MOSFET Rds(on)
  • User initiated micropower "Sleep mode"
  • Under-voltage Lockout
  • Simple design with minimal component count.
  • Lead-free
Target Applications:
  • Primary Side
功能框图
Data Sheet
TitleSizeDateVersion
Data Sheet - IRS27951,EN1 MB16 十一月 2012
Application Notes
TitleSizeDateVersion
Design of Resonant Half-Bridge converter using IRS2795(1,2) Control ICEN666 KB09 十月 2010
Evaluation Boards
BoardFamilyDescriptionStatus
IRAC27951SREmploying IRS27951SPbF Resonant Half Bridge controller HVIC and the IR11682S. Input voltage range: 350-420VDC or 250V-300Vac. Outputs: 24V/10A. Switching frequency range: 70KHz-150Khz. 95% efficiency without heatsink.IRS27951active
EN IRS279524
EN IRS27952