2.5 A Isolated IGBT/MOSFET Gate Driver - ISO5500

ISO5500 (ACTIVE)

2.5 A Isolated IGBT/MOSFET Gate Driver

Description

The ISO5500 is an isolated gate driver for IGBTs and MOSFETs with power ratings of up to IC = 150 A and VCE = 600 V. Input TTL logic and output power stage are separated by a capacitive, silicon dioxide (SiO2), isolation barrier. When used in conjunction with isolated power supplies, the device blocks high voltage, isolates ground, and prevents noise currents from entering the local ground and interfering with or damaging sensitive circuitry.

The device provides over-current protection (DESAT) to an IGBT or MOSFET while an Undervoltage Lockout circuit (UVLO) monitors the output power supply to ensure sufficient gate drive voltage. If the output supply drops below 12 V, the UVLO turns the power transistor off by driving the gate drive output to a logic low state.

For a DESAT fault, the ISO5500 initiates a soft shutdown procedure that slowly reduces the IGBT/MOSFET current to zero while preventing large di/dt induced voltage spikes. A fault signal is then transmitted across the isolation barrier, actively driving the open-drain FAULT output low and disabling the device inputs. The inputs are blocked as long as the FAULT-pin is low. FAULT remains low until the inputs are configured for an output low state, followed by a logic low input on the RESET pin.

The ISO5500 is available in a 16-pin SOIC package and is specified for operating temperatures from –40°C to 125°C.

Features

  • 2.5 A Maximum Peak Output Current
  • Drives IGBTs up to IC = 150 A, VCE = 600 V
  • Capacitive Isolated Fault Feedback
  • CMOS/TTL Compatible Inputs
  • 300 ns Maximum Propagation Delay
  • Soft IGBT Turn-off
  • Integrated Fail-safe IGBT Protection
    • High VCE (DESAT) Detection
    • Under-Voltage Lockout (UVLO) Protection
      with Hysteresis
  • User Configurable Functions
    • Inverting, Non-inverting Inputs
    • Auto-Reset
    • Auto-Shutdown
  • Wide VCC1 Range: 3 V to 5.5 V
  • Wide VCC2 Range: 15 V to 30 V
  • Operating Temperature: –40°C to
    125°C
  • Wide-body SO-16 Package
  • ±50 kV/µs Transient Immunity Typical
  • 6000 VPeak Isolation
  • Regulatory Approvals:
    • UL1577, CSA, DIN EN 60747-5-2,
      IEC 60950-1 and 61010-1 Approved

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Parametrics Compare all products in Isolated Gate Driver

 
UL 1577 Isolation Voltage (Single) (Vrms)
VDE DIN EN 60747-5-5 Transient Overvoltage Rating (Vpk)
VDE DIN EN 60747-5-5 Surge Voltage Rating (Vpk)
VDE DIN EN 60747-5-5 Working Voltage Rating (Vpk)
CSA Isolation Rating (Vrms)
CSA 60950-1 Basic Working (Vrms)
CSA 60950-1 Reinforced Working (Vrms)
CSA 61010-1 Basic Working (Vrms)
CSA 61010-1 Reinforced Working (Vrms)
Number of Channels (#)
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
ISO5500
4.2    
6    
6    
1.2    
4200    
760    
380    
600    
300    
1    
-40 to 125    
16SOIC    
3.00 | 1ku    

Companion parts

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SN6501   Transformer Driver for Isolated Power Supplies   CONVERTER (INTEGRATED SWITCH) - ISOLATED DC/DC CONVERTER    Transformer driver for generating isolated secondary power supply  
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