Overview
The ISO5852SDW is a high-performance, 5.7-kVrms reinforced isolated gate driver developed by Texas Instruments. This device is designed for driving IGBTs and MOSFETs, particularly in applications requiring high reliability and precision control. It features split outputs, OUTH and OUTL, which provide 2.5-A peak source and 5-A peak sink currents. The input side operates from a single 2.25-V to 5.5-V supply, while the output side can handle a supply range from 15 V to 30 V. The ISO5852SDW is housed in a 16-pin SOIC (DW) package and operates over a temperature range of –40°C to +125°C ambient.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of channels | 1 | |
| Isolation rating | Reinforced | |
| Withstand isolation voltage (VISO) (Vrms) | 5700 | Vrms |
| Transient isolation voltage (VIOTM) (VPK) | 8000 | VPK |
| Working isolation voltage (VIOWM) (Vrms) | 2121 | Vrms |
| Peak output current (A) | 5 | A |
| Output VCC/VDD (max) (V) | 30 | V |
| Output VCC/VDD (min) (V) | 15 | V |
| Input VCC (min) (V) | 2.25 | V |
| Input VCC (max) (V) | 5.5 | V |
| Propagation delay time (ns) | 76 (Typ), 110 (Max) | ns |
| Operating temperature range (°C) | -40 to 125 | °C |
| Package type | SOIC (DW)-16 |
Key Features
- High Common-Mode Transient Immunity (CMTI): Minimum 100-kV/µs at V_CM = 1500 V.
- Split Outputs: Provides 2.5-A peak source and 5-A peak sink currents.
- Short Propagation Delay: 76 ns (Typ), 110 ns (Max).
- Active Miller Clamp: Prevents dynamic turn-on during high-voltage transient conditions.
- Output Short-Circuit Clamp and Soft Turn-Off (STO): During short circuit, the device initiates a soft-turnoff procedure.
- Fault Alarm and Desaturation Detection: Fault signal sent across the isolation barrier upon desaturation detection, signaled on FLT and reset through RST.
- Input and Output Undervoltage Lockout (UVLO): With Ready (RDY) pin indication.
- CMOS Compatible Inputs: Rejects input pulses and noise transients shorter than 20 ns.
- Safety-Related Certifications: Includes certifications from VDE, CSA, UL, TUV, and CQC.
Applications
- Industrial Motor Control Drives: High-reliability gate driving for industrial motor control systems.
- Industrial Power Supplies: Used in power supply units requiring isolated gate driving.
- Solar Inverters: Suitable for solar inverter applications due to its high isolation and reliability features.
- HEV and EV Power Modules: Ideal for hybrid and electric vehicle power modules.
- Induction Heating: Used in induction heating systems that require precise and reliable gate driving.
Q & A
- What is the isolation rating of the ISO5852SDW?
The ISO5852SDW has a reinforced isolation rating with a withstand isolation voltage of 5700 Vrms and a transient isolation voltage of 8000 VPK.
- What are the output current capabilities of the ISO5852SDW?
The device provides 2.5-A peak source and 5-A peak sink currents.
- What is the propagation delay time of the ISO5852SDW?
The propagation delay time is 76 ns (Typ) and 110 ns (Max).
- What safety certifications does the ISO5852SDW have?
The device has certifications from VDE, CSA, UL, TUV, and CQC.
- What is the operating temperature range of the ISO5852SDW?
The device operates over a temperature range of –40°C to +125°C ambient.
- What type of package does the ISO5852SDW come in?
The ISO5852SDW is housed in a 16-pin SOIC (DW) package.
- How does the ISO5852SDW handle short circuits?
During a short circuit, the device initiates a soft-turnoff procedure and sends a fault signal across the isolation barrier.
- What is the input supply voltage range for the ISO5852SDW?
The input supply voltage range is from 2.25 V to 5.5 V.
- What is the output supply voltage range for the ISO5852SDW?
The output supply voltage range is from 15 V to 30 V.
- Does the ISO5852SDW have undervoltage lockout (UVLO) protection?
Yes, the device has input and output undervoltage lockout (UVLO) protection with a Ready (RDY) pin indication.
