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Product Attributes

Introduction

The ISO5451-Q1 is a 5.7-kV_PMS, reinforced isolated gate driver for IGBTs and MOSFETs with 2.5-A source and 5-A sink current. The input side operates from a single 3-V to 5.5-V supply. The output side allows for a supply range from minimum 15 V to maximum 30 V. Two complementary CMOS inputs control the output state of the gate driver. The short propagation time of 76 ns assures accurate control of the output stage. An internal desaturation (DESAT) fault detection recognizes when the IGBT is in an overload condition. Upon a DESAT detect, the gate driver output is driven low to V_EE2 potential, turning the IGBT immediately off. When desaturation is active, a fault signal is sent across the isolation barrier, pulling the FLT output at the input side low and blocking the isolator input. The FLT output condition is latched and can be reset through a lowactive pulse at the RST input. When the IGBT is turned off during normal operation with bipolar output supply, the output is hard clamp to V_EE2. If the output supply is unipolar, an active Miller clamp can be used, allowing Miller current to sink across a low impedance path, preventing IGBT to be dynamically turned on during high voltage transient conditions. The readiness for the gate driver to be operated is under the control of two undervoltage-lockout circuits monitoring the input side and output side supplies. If either side has insufficient supply the RDY output goes low, otherwise this output is high. The ISO5451-Q1 is available in a 16-pin SOIC package. Device operation is specified over a temperature range from -40℃ to +125℃ ambient.

Features

• Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
  • Device Temperature Grade 1: -40℃ to +125℃ Ambient Operating Temperature Range
  • Device HBM Classification Level 3A
  • Device CDM Classification Level C6
• 50-kV/μs Minimum and 100-kV/μs Typical Common-Mode Transient Immunity (CMTI) at V_CM = 1500 V
• 2.5-A Peak Source and 5-A Peak Sink Currents
• Short Propagation Delay: 76 ns (Typ), 110 ns (Max)
• 2-A Active Miller Clamp Output
• Short-Circuit Clamp Fault Alarm upon Desaturation Detection is Signaled on FLT and Reset Through RST Input
• Input and Output Under Voltage Lock-Out (UVLO) with Ready (RDY) Pin Indication
• Active Output Pull-down and Default Low Outputs with Low Supply or Floating Inputs
• 3-V to 5.5-V Input Supply Voltage
• 15-V to 30-V Output Driver Supply Voltage
• CMOS Compatible Inputs
• Rejects Input Pulses and Noise Transients Shorter Than 20 ns
• Isolation Surge Withstand Voltage 10000-V_PK
• Safety-Related Certifications:
  • 8000-V_PK V_IOTM and 1420-V_PK V_IORM Reinforced Isolation per DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
  • 5700-V_RMS Isolation for 1 Minute per UL 1577
  • CSA Component Acceptance Notice 5A, IEC 60950–1 and IEC 60601–1 End Equipment Standards
  • TUV Certification per EN 61010-1 and EN 60950-1
  • GB4943.1-2011 CQC Certification
  • All Certifications Complete per UL, VDE, CQC, TUV and Planned for CSA

Applications

• Isolated IGBT and MOSFET Drives in:
  • HEV and EV Power Modules
  • Industrial Motor Control Drives
  • Industrial Power Supplies
  • Solar Inverters
  • Induction Heating