Overview
The ISO5500DW, produced by Texas Instruments, is a 2.5 A isolated gate driver designed for driving IGBTs and MOSFETs. This device features a wide range of operating voltages and advanced protection mechanisms, making it suitable for various high-power applications. The ISO5500DW operates with a capacitive, silicon dioxide (SiO2) isolation barrier, ensuring high voltage isolation and preventing noise currents from interfering with sensitive circuitry. It is available in a 16-pin SOIC package and is specified for operating temperatures from –40°C to 125°C.
Key Specifications
| Parameter | Value |
|---|---|
| Maximum Peak Output Current | 2.5 A |
| VCC1 Range | 3 V to 5.5 V |
| VCC2 Range | 15 V to 30 V |
| IGBT Drive Capability | Up to IC = 150 A, VCE = 1200 V |
| Propagation Delay (tpLH / tpHL) | 300 ns |
| Rise / Fall Time | 55 ns / 10 ns (Typical) |
| Common Mode Transient Immunity | ±50 kV/μs (Typical) |
| Voltage - Isolation | 4243 Vrms |
| Operating Temperature | –40°C to 125°C |
| Package Type | 16-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount |
Key Features
- High Current Drive Capability: The ISO5500DW can drive IGBTs and MOSFETs with up to 2.5 A peak output current.
- Wide Operating Voltage Range: Supports VCC1 from 3 V to 5.5 V and VCC2 from 15 V to 30 V.
- Advanced Protection Mechanisms: Includes IGBT desaturation protection (DESAT), under-voltage lockout (UVLO) with hysteresis, and integrated fail-safe IGBT protection.
- High Isolation and Transient Immunity: Provides 4243 Vrms isolation and ±50 kV/μs transient immunity.
- CMOS/TTL Compatible Inputs: Compatible with both CMOS and TTL logic inputs.
- Soft IGBT Turn-off: Initiates a soft shutdown procedure to reduce IGBT/MOSFET current to zero, preventing large di/dt induced voltage spikes.
Applications
- Industrial Inverters: Suitable for high-power inverter applications in industrial settings.
- Switched-Mode Power Supplies: Used in switched-mode power supplies requiring high isolation and reliability.
- Motor Control and Motion Control: Ideal for motor control and motion control systems that require precise and reliable gate driving.
- Auto-Reset and Auto-Shutdown Systems: Can be configured for auto-reset and auto-shutdown functions to enhance system reliability.
Q & A
- What is the maximum peak output current of the ISO5500DW?
The ISO5500DW has a maximum peak output current of 2.5 A.
- What is the operating voltage range for VCC1 and VCC2?
VCC1 operates from 3 V to 5.5 V, and VCC2 operates from 15 V to 30 V.
- What type of protection mechanisms does the ISO5500DW include?
The ISO5500DW includes IGBT desaturation protection (DESAT), under-voltage lockout (UVLO) with hysteresis, and integrated fail-safe IGBT protection.
- What is the isolation voltage of the ISO5500DW?
The ISO5500DW provides 4243 Vrms isolation.
- What is the propagation delay of the ISO5500DW?
The propagation delay (tpLH / tpHL) is 300 ns.
- Is the ISO5500DW compatible with CMOS and TTL logic inputs?
Yes, the ISO5500DW is compatible with both CMOS and TTL logic inputs.
- What is the operating temperature range of the ISO5500DW?
The operating temperature range is from –40°C to 125°C.
- What type of package does the ISO5500DW come in?
The ISO5500DW comes in a 16-pin SOIC package.
- What are some common applications of the ISO5500DW?
Common applications include industrial inverters, switched-mode power supplies, motor control, and motion control systems.
- How does the ISO5500DW handle IGBT desaturation faults?
The ISO5500DW initiates a soft shutdown procedure to reduce IGBT/MOSFET current to zero, preventing large di/dt induced voltage spikes, and transmits a fault signal across the isolation barrier.
