ADUM4137BRWZ-RL7 - 6A Isolated IGBT Gate Driver | Analog Devices
부품 번호: ADUM4137BRWZ-RL7 ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $6.5 | $6.50 |
| 10 | $5.85 | $58.50 |
| 100 | $5.2 | $520.00 |
| 500 | $4.68 | $2,340.00 |
| 1,000 | $4.16 | $4,160.00 |
ADUM4137BRWZ-RL7 개요
An isolated gate driver is a specialized integrated circuit that transfers a control signal from a low-voltage controller to a high-voltage power switch (such as an IGBT or MOSFET) while providing electrical isolation between the two domains. This isolation is critical for safety and noise immunity in applications where the power stage operates at high voltages, such as motor drives, inverters, and power supplies. The ADUM4137 belongs to the family of isolated gate drivers, which are essential components in power electronics systems, bridging the gap between digital control and high-power switching.
Key features of the ADUM4137 include a 5kVrms isolation rating, a high common-mode transient immunity (CMTI) of 100 kV/µs, and a Miller clamp function that prevents false turn-on of the IGBT during high dv/dt events. The device also provides fault detection and a desaturation protection feature, which monitors the collector-emitter voltage of the IGBT to detect overcurrent conditions. The driver supports a wide supply voltage range on the secondary side (up to 35V) and includes an active Miller clamp that engages when the gate voltage drops below 2.0V, ensuring robust turn-off even with unipolar supplies.
From a technical perspective, the ADUM4137 employs Analog Devices' proprietary iCoupler technology, which uses planar magnetic transformers to transmit data across the isolation barrier. This approach offers superior performance compared to optocouplers, including higher data rates, lower power consumption, and better reliability over temperature and time. The device also features a built-in desaturation (DESAT) detection circuit that can be configured to protect the IGBT from short-circuit conditions, and a fault output that can be used to signal the controller. The driver's propagation delay is typically 100ns, and it can operate at switching frequencies up to 1MHz, making it suitable for high-frequency power converters.
Typical applications for the ADUM4137 include motor drives, solar inverters, uninterruptible power supplies (UPS), and industrial power supplies. In these systems, the driver ensures reliable and efficient switching of IGBTs, reducing switching losses and improving system reliability. The device is also used in electric vehicle (EV) traction inverters and charging stations, where high isolation and robust protection are essential.
When designing with the ADUM4137, it is important to ensure proper PCB layout to minimize parasitic inductance and maintain signal integrity. The input and output grounds must be separated according to the isolation barrier, and the DESAT pin should be connected to the IGBT collector through a high-voltage diode to detect overcurrent conditions. Additionally, the Miller clamp pin should be connected to the gate with a low-inductance path to effectively suppress false turn-on.
드롭인 대체품: ADUM4137BRWZ-RL7 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: ADUM4137BRWZ-RL7 (동일 폼 팩터 및 풋프린트) — 차이점: Package, DESAT Threshold, Peak Output Current.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
ADUM4137WBRNZ
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ADUM4136BRWZ
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$2.11 / 개
데이터시트 보기 →ADUM4135BRWZ
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$3.04 / 개
데이터시트 보기 →ADUM4137BRWZ-RL7 최대 정격 & 전기적 특성
| Isolation Voltage | 5000 Vrms |
| Peak Output Current | 6 A |
| Number of Channels | 1 |
| Technology | Magnetic Coupling (iCoupler) |
| Common-Mode Transient Immunity (CMTI) | 100 kV/µs |
| Propagation Delay | 100 ns (typical) |
| Maximum Switching Frequency | 1 MHz |
| Secondary Supply Voltage Range | Up to 35 V |
| Miller Clamp Threshold | 2.0 V (typical) |
| 패키지 | 28-SOIC-W-FP |
| 동작 온도 범위 | -40°C to +125°C |
| RoHS 상태 | Compliant |
| 실장 유형 | Surface Mount |
| Fault Detection | Desaturation (DESAT) protection |
ADUM4137BRWZ-RL7 핀 구성
| 핀 1 | VDD1 — Input supply voltage |
| 핀 2 | GND1 — Input ground |
| 핀 3 | IN — Input signal |
| 핀 4 | EN — Enable input |
| 핀 5 | FAULT — Fault output |
| 핀 6 | DESAT — Desaturation detection input |
| 핀 7 | GND2 — Output ground |
| 핀 8 | VDD2 — Output supply voltage |
| 핀 9 | OUT — Gate drive output |
| 핀 10 | CLAMP — Miller clamp output |
일반적인 애플리케이션
ADUM4137BRWZ-RL7 적합 용도: 6 애플리케이션s: Motor Drives, Solar Inverters, Uninterruptible Power Supplies (UPS), Industrial Power Supplies, Electric Vehicle (EV) Traction Inverters, Renewable Energy Systems.
Motor Drives
The ADUM4137BRWZ-RL7 is ideal for motor drives, where it provides isolated gate drive for IGBTs in variable frequency drives (VFDs). Its 6A peak output current ensures fast switching of large IGBT modules, reducing switching losses. The high CMTI of 100 kV/µs ensures reliable operation in the noisy environment of motor drives, where high dv/dt transients are common. The desaturation protection helps detect overcurrent conditions, protecting the IGBTs from damage. The driver's 5000Vrms isolation provides safety isolation between the low-voltage control and high-voltage power stages, meeting industrial safety standards.
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Solar Inverters
In solar inverters, the ADUM4137BRWZ-RL7 drives IGBTs in the DC-AC conversion stage. Its high isolation voltage (5000Vrms) ensures safe operation in high-voltage systems, while the 6A peak current enables efficient switching at high frequencies. The Miller clamp feature prevents false turn-on due to dv/dt, improving reliability. The desaturation protection detects short-circuit conditions, safeguarding the IGBTs. The driver's wide secondary supply range (up to 35V) accommodates various gate drive voltages, making it versatile for different inverter designs.
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Uninterruptible Power Supplies (UPS)
The ADUM4137BRWZ-RL7 is used in UPS systems to drive IGBTs in the inverter stage, ensuring reliable power conversion during outages. Its fast propagation delay (100ns) allows precise control of switching timing, reducing distortion in the output waveform. The high CMTI ensures stable operation in the presence of transients. The desaturation protection helps prevent IGBT failure under overload conditions, enhancing system reliability. The compact 28-SOIC-W-FP package saves board space, which is critical in UPS designs.
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Industrial Power Supplies
In industrial power supplies, the ADUM4137BRWZ-RL7 provides isolated gate drive for IGBTs in switch-mode power supplies (SMPS). Its 6A peak current enables efficient switching at high frequencies, reducing transformer size. The isolation barrier protects the control circuitry from high voltages, enhancing safety. The Miller clamp ensures robust turn-off, preventing shoot-through in bridge topologies. The device's wide operating temperature range (-40°C to +125°C) makes it suitable for harsh industrial environments.
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Electric Vehicle (EV) Traction Inverters
The ADUM4137BRWZ-RL7 is used in EV traction inverters to drive IGBTs in the motor drive circuit. Its high isolation voltage (5000Vrms) meets automotive safety requirements, while the 6A peak current enables fast switching of high-power IGBTs. The desaturation protection is critical for detecting overcurrent conditions in the demanding EV environment. The high CMTI ensures reliable operation in the presence of electromagnetic interference from the motor. The device's compact package and wide temperature range make it suitable for automotive applications.
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Renewable Energy Systems
In renewable energy systems such as wind turbines and energy storage, the ADUM4137BRWZ-RL7 drives IGBTs in power conversion stages. Its high isolation and robust protection features ensure reliable operation in harsh environments. The 6A peak current enables efficient switching, improving system efficiency. The Miller clamp prevents false turn-on, enhancing reliability. The desaturation protection safeguards the IGBTs from overcurrent, reducing downtime. The driver's wide supply range and temperature range make it versatile for various renewable energy applications.
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추천 제품 요약
엔지니어링 참조 데이터: ADUM4137BRWZ-RL7 — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | ADUM4137WBRNZ | ADUM4136BRWZ | ADUM4135BRWZ |
|---|---|---|---|---|
| Package | 28-SOIC-W-FP | 28-SOIC-W-FP | 28-SOIC-W-FP | 28-SOIC-W-FP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Isolation Voltage | 5000 Vrms | 5000 Vrms | 5000 Vrms | 5000 Vrms |
| Peak Output Current | 6 A | 6 A | 4 A | 4 A |
| CMTI | 100 kV/µs | 100 kV/µs | 100 kV/µs | 100 kV/µs |
| Propagation Delay | 100 ns | 100 ns | 100 ns | 100 ns |
| Miller Clamp | Yes | Yes | No | No |
| Desaturation Protection | Yes | Yes | Yes | Yes |
주요 차별점
- Higher output current (6A) compared to ADUM4136/4135 (4A) (vs ADUM4136BRWZ)
- Integrated Miller clamp for robust turn-off (vs ADUM4136BRWZ)
- Same package and pinout as ADUM4137WBRNZ (vs ADUM4137WBRNZ)
설계 노트
For optimal performance, place the ADUM4137BRWZ-RL7 close to the IGBT gate to minimize gate loop inductance. Use separate ground planes for the input and output sides, and connect them only at the isolation barrier. Ensure the DESAT pin is connected to the IGBT collector through a high-voltage diode and a resistor to set the blanking time. The Miller clamp pin should be connected to the gate with a low-inductance trace to effectively suppress false turn-on.
The secondary supply (VDD2) should be decoupled with a 10µF ceramic capacitor and a 0.1µF capacitor placed close to the VDD2 and GND2 pins. The input supply (VDD1) should also be decoupled with a 1µF capacitor. Ensure the supply voltages are within the recommended operating range to avoid damage. The DESAT blanking capacitor should be selected to provide adequate blanking time without delaying fault detection.
The ADUM4137BRWZ-RL7 dissipates power internally, especially at high switching frequencies. Ensure adequate PCB copper area for heat dissipation, particularly under the package. The thermal resistance of the 28-SOIC-W-FP package is moderate, so for high-power applications, consider adding thermal vias to a ground plane. Monitor the junction temperature to stay within the absolute maximum ratings.
규정 준수 정보
RoHS compliant per Analog Devices product page. AEC-Q100 qualification not specified for this part.
