STGAP2HSA - 4A Galvanically Isolated Gate Driver | STMicroelectronics
部品番号: STGAP2HSA ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.56 | $25.60 |
| 100 | $2.28 | $228.00 |
| 500 | $2.05 | $1,025.00 |
| 1,000 | $1.82 | $1,820.00 |
STGAP2HSA 概要
A galvanic isolation barrier is a critical safety feature in power electronics that electrically separates the low-voltage control circuitry from the high-voltage power stage, preventing ground loops and protecting sensitive logic. The STGAP2HSA uses a capacitive isolation technology that provides reinforced isolation up to 6kV, meeting stringent safety standards for industrial motor drives and solar inverters. This isolation barrier is essential in applications where the control and power grounds are at different potentials, such as in half-bridge or full-bridge topologies.
Key features of the STGAP2HSA include a 4A sink/source peak current, a 75ns propagation delay, and a 100V/ns CMTI. The device also offers a programmable dead time function, a shutdown pin for fault protection, and a separate output pin for Miller clamp, which prevents spurious turn-on of the power switch during high dv/dt events. The wide supply voltage range and rail-to-rail output make it compatible with a variety of gate drive circuits.
The STGAP2HSA is built using STMicroelectronics' proprietary galvanic isolation technology, which uses a high-voltage capacitor to transfer signals across the isolation barrier. This architecture achieves low power consumption and high reliability, with a typical quiescent current of 1.5mA on the primary side. The device is available in a compact SO-8 package, which simplifies PCB layout and reduces board space in space-constrained designs.
Typical applications include industrial motor drives, solar inverters, uninterruptible power supplies (UPS), and electric vehicle (EV) charging systems. In motor drives, the STGAP2HSA drives the IGBTs in the inverter stage, providing fast and reliable switching to minimize losses. In solar inverters, it drives the SiC MOSFETs in the boost converter, enabling high-frequency operation and improved efficiency.
When designing with the STGAP2HSA, it is important to ensure proper PCB layout to minimize parasitic inductance in the gate drive loop. The Miller clamp output should be connected to the gate of the power switch to prevent false turn-on. Additionally, the dead time programming pin should be configured with an external resistor to set the desired dead time for the application.
ドロップイン代替品: STGAP2HSA — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
クイック比較ツール — 並列比較する代替部品を選択:
STGAP2HSA-Q1
✅ ドロップイン📋 参考代替品（カタログ未掲載）
STGAP2S
⚡ 同一パッケージ ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
Si8271
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ADuM4121
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
STGAP2HSA 最大定格＆電気的特性
| Number of Channels | 1 |
| Isolation Type | Galvanic (capacitive) |
| Peak Output Current | 4 A (sink/source) |
| Primary Supply Voltage | 3 V to 18 V |
| Secondary Supply Voltage | 4.5 V to 18 V |
| Propagation Delay | 75 ns |
| Common-Mode Transient Immunity (CMTI) | 100 V/ns |
| Isolation Voltage | 6 kV (reinforced) |
| Dead Time Programming | Yes (external resistor) |
| Miller Clamp | Yes (separate output) |
| Shutdown Pin | Yes (active low) |
| 動作温度 | -40C to +125C |
| パッケージ | SO-8 |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
STGAP2HSA ピン構成
| ピン 1 | VCC — Primary supply voltage |
| ピン 2 | GND — Primary ground |
| ピン 3 | IN — Input signal |
| ピン 4 | DT — Dead time programming |
| ピン 5 | SD — Shutdown (active low) |
| ピン 6 | OUT — Gate drive output |
| ピン 7 | CLAMP — Miller clamp output |
| ピン 8 | VDD — Secondary supply voltage |
主な用途
STGAP2HSA の用途: 6 件s: Industrial Motor Drives, Solar Inverters, Uninterruptible Power Supplies (UPS), Electric Vehicle (EV) Charging, Renewable Energy Systems, Power Supplies.
Industrial Motor Drives
The STGAP2HSA drives IGBTs in industrial motor drive inverters. Its 4A peak output current and 75ns propagation delay enable fast switching, reducing switching losses and improving efficiency. The 100V/ns CMTI ensures reliable operation in noisy industrial environments. In a typical motor drive, the STGAP2HSA is placed between the microcontroller and the IGBT gate, with a gate resistor to control switching speed. The Miller clamp prevents false turn-on during high dv/dt events. Compared to non-isolated drivers, the galvanic isolation protects the control circuitry from high-voltage transients.
おすすめ
Solar Inverters
In solar inverters, the STGAP2HSA drives SiC MOSFETs in boost converters and inverters. The high CMTI and fast propagation delay enable high-frequency operation, increasing power density and efficiency. The wide supply voltage range accommodates various control logic levels. The STGAP2HSA is used in the gate drive circuit of the SiC MOSFET, with a gate resistor to dampen ringing. The isolation barrier protects the MPPT controller from high-voltage DC bus transients. Compared to optocoupler-based drivers, the capacitive isolation offers lower power consumption and longer lifespan.
おすすめ
Uninterruptible Power Supplies (UPS)
The STGAP2HSA is used in UPS systems to drive IGBTs in the inverter stage. Its 4A peak output current ensures fast switching of large IGBTs, minimizing losses and improving efficiency. The reinforced isolation provides safety in high-voltage applications. In a UPS, the STGAP2HSA is placed between the DSP controller and the IGBT gate, with a dead time resistor to prevent shoot-through. The shutdown pin allows for fault protection. Compared to non-isolated drivers, the galvanic isolation enhances system reliability.
おすすめ
Electric Vehicle (EV) Charging
In EV charging stations, the STGAP2HSA drives IGBTs and SiC MOSFETs in the power conversion stages. The automotive-grade variant STGAP2HSA-Q1 is AEC-Q100 qualified, ensuring reliability in harsh automotive environments. The high CMTI and fast propagation delay enable efficient high-frequency switching. The STGAP2HSA is used in the gate drive circuit of the power switches, with a Miller clamp to prevent false turn-on. The isolation barrier protects the control electronics from high-voltage battery transients. Compared to non-isolated drivers, the galvanic isolation is essential for safety.
おすすめ
Renewable Energy Systems
The STGAP2HSA is used in renewable energy systems such as wind turbines and energy storage systems. It drives IGBTs in the power converters, providing fast and reliable switching. The wide supply voltage range and high CMTI make it suitable for harsh environments. In a wind turbine converter, the STGAP2HSA is placed between the controller and the IGBT gate, with a gate resistor to control switching speed. The isolation barrier protects the control circuitry from high-voltage transients. Compared to non-isolated drivers, the galvanic isolation enhances system reliability.
おすすめ
Power Supplies
The STGAP2HSA is used in switch-mode power supplies (SMPS) to drive power MOSFETs and IGBTs. Its 4A peak output current and fast propagation delay enable high-frequency operation, reducing transformer size and improving efficiency. The isolation barrier provides safety in offline power supplies. In an SMPS, the STGAP2HSA is placed between the PWM controller and the power switch, with a gate resistor to dampen ringing. The shutdown pin allows for overcurrent protection. Compared to non-isolated drivers, the galvanic isolation is required for safety.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: STGAP2HSA — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | STGAP2HSA-Q1 | Si8271 | ADuM4121 |
|---|---|---|---|---|
| Package | SO-8 | SO-8 (same) | SO-8 (same) | SO-8 (same) |
| Brand | STMicroelectronics | STMicroelectronics | Silicon Labs | Analog Devices |
| Peak Output Current | 4 A | 4 A | 4 A | 2 A |
| Propagation Delay | 75 ns | 75 ns | 60 ns | 100 ns |
| CMTI | 100 V/ns | 100 V/ns | 200 V/ns | 150 V/ns |
| Isolation Voltage | 6 kV | 6 kV | 5 kV | 5 kV |
| Miller Clamp | Yes | Yes | No | No |
| Automotive Grade | No | Yes (AEC-Q100) | No | No |
主な差別化要因
- Integrated Miller clamp （vs Si8271)
- Higher output current than ADuM4121 （vs ADuM4121)
- Automotive-grade variant available （vs Si8271)
設計ノート
Place the STGAP2HSA as close as possible to the power switch to minimize parasitic inductance in the gate drive loop. Use a low-inductance gate resistor and a Kelvin source connection to reduce switching losses and ringing. Ensure adequate copper pour for thermal dissipation.
The STGAP2HSA dissipates power primarily during switching. At 4A peak output and 100kHz switching frequency, the average power dissipation is approximately 0.5W. The SO-8 package has a thermal resistance of 150C/W, so ensure adequate PCB copper area for heat sinking. For high-frequency operation, consider a thermal pad or heatsink.
Do not exceed the absolute maximum supply voltage of 18V on the secondary side. Ensure the dead time resistor is properly sized to prevent shoot-through in half-bridge configurations. The Miller clamp output should be connected to the gate of the power switch to prevent false turn-on during high dv/dt events.
コンプライアンス情報
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified - choose STGAP2HSA-Q1 for automotive.
