SLLR117 — ISO5852SDWEVM-017 Design Files
支援產品和硬體
產品
隔離式閘極驅動器
- ISO5852S — 具有分離輸出、STO 和保護功能的 5.7kVrms、2.5A/5A 單通道絕緣式閘極驅動器
硬體開發
開發板
- ISO5852SDWEVM-017 — 適用於 SiC 和 IGBT 電源模組的驅動和保護評估板
The ISO5852S device is a 5.7-kV RMS, reinforced isolated gate driver for IGBTs and MOSFETs with split outputs, OUTH and OUTL, providing 2.5-A source and 5-A sink current. The input side operates from a single 2.25-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 provides accurate control of the output stage.
An internal desaturation (DESAT) fault detection recognizes when the IGBT is in an overcurrent condition. Upon a DESAT detect, a mute logic immediately blocks the output of the isolator and initiates a soft-turnoff procedure which disables the OUTH pin and pulls the OUTL pin to low over a time span of 2 µs. When the OUTL pin reaches 2 V with respect to the most-negative supply potential, V EE2, the gate-driver output is pulled hard to the 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. Mute logic is activated through the soft-turnoff period. The FLT output condition is latched and can be reset only after the RDY pin goes high, through a low-active pulse at the RST input.
When the IGBT is turned off during normal operation with a 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 which prevents the IGBT from dynamic turnon 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 ISO5852S device is available in a 16-pin SOIC package. Device operation is specified over a temperature range from –40°C to +125°C ambient.
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ISO5852SDWEVM-017 是一款精巧的雙通道隔離閘極驅動板,為標準 62-mm 封裝的半橋 Sic MOSFET 和 IGBT 功率模組提供所需的驅動、偏壓、保護和診斷功能。此 TI EVM 是以 SOIC-16DW 封裝,沿面距離與電氣間隙為 8.0mm 的 5.7 kVrms 強化型隔離驅動器 IC ISO5852SDW 為基礎。EVM 包括 SN6505B 架構的隔離式偏壓電源供應器,以及由放大器 AMC1401 隔離的溫度與匯流排電壓監控。
This evaluation module, featuring ISO5852S reinforced isolated gate driver device, allows designers to evaluate device AC and DC performance with a pre-populated 1-nF load or with a user-installed IGBT in either of the standard TO-247 or TO-220 packages.
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOIC (DW) | 16 | Ultra Librarian |
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。