600V GENERAL PURPOSE CURRENT SENSING IC

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600V GENERAL PURPOSE CURRENT SENSING IC

• The robust IR25750L general purpose current
  sensing IC is available in an ultra-compact
  SOT23-5L package that boosts overall system
  efficiency while delivering dramatic space
  savings for high current applications

DATASHEET
PRESS RELEASE

• Advantages
• Measuring high currents (10-100A) through a power
  MOSFET, DirectFET, or IGBT typically requires a
  large resistor which generates excess power
  losses (10-30W). By extracting the VDS(on) of a
  power MOSFET, or the VCE(on) of an IGBT, during
  the switchs on-time, the IR25750L eliminates
  large external current sensing resistors,
  heatsinks and excess power losses.
• The IR25750Ls gate drive input provides the VCC
  supply voltage to the IC and synchronizes the
  VDS(on) or VCE(on) sensing circuit to the on and
  off times of the MOSFET or IGBT.
• Leveraging IRs proprietary high-voltage
  technology, the device also features 600V
  blocking capability necessary for blocking high
  VDS or VCE voltages during the switch off time.

HI-RES GRAPHIC
Features VDS(on) or VCE(on) current sensing
Eliminate external current sensing resistors
or transformers Enables loss-less current
sensing Enables inductance-less current
sensing 600V blocking capability No VCC
required Programmability and temperature
compensation possible Gate drive on/off
input Filter delay at GATE turn-on (200 nsec
typ) 20.8V Zener clamps on GATE and CS pins
Excellent latch immunity on all inputs and
outputs Integrated ESD protection on all
pins Tiny 5-pin SOT-23 package
March 2014