UCC33020QWRHBRQ1 - 1W Isolated DC/DC Module | TI Automotive
MPN： UCC33020QWRHBRQ1 ✓ 啟用中UCC33020QWRHBRQ1 概覽
A DC/DC power module is a complete power supply solution that integrates the controller, power switches, and often the transformer or inductor into a single package. This integration simplifies design, reduces board space, and improves reliability compared to discrete solutions. In the hierarchy of power management, a DC/DC module is a type of power converter, which falls under power management ICs, ultimately part of the broader semiconductor category. The UCC33020-Q1 specifically targets isolated power delivery, a critical function in systems requiring galvanic isolation for safety or noise immunity.
Key features include 1.0W maximum output power, 3.0V to 5.5V input range, selectable 5.0V or 5.5V output, 0.5% typical load regulation, and 4mV/V typical line regulation. The integrated transformer provides 3kVRMS isolation, eliminating the need for external magnetics. The device is AEC-Q100 qualified for automotive applications, ensuring robust performance across temperature extremes. Its ultra-small package (VQFN-20) and high integration make it suitable for space-limited designs.
Technically, the UCC33020-Q1 uses a proprietary transformer architecture that enables high isolation in a compact footprint. The module includes all necessary control circuitry, reducing external component count. The selectable output headroom allows designers to optimize for either lower power loss (5.0V) or higher voltage margin (5.5V). The device also features robust protection mechanisms, including overcurrent and thermal shutdown, ensuring reliable operation in harsh environments.
Typical applications include isolated power supplies for IGBT/SiC gate drivers in automotive traction inverters, isolated sensor interfaces, and auxiliary power rails in battery management systems. Its 3kVRMS isolation and 1W output make it ideal for powering high-side gate drivers and isolated communication interfaces. The module's small size and integrated transformer are particularly beneficial in electric vehicle (EV) and hybrid electric vehicle (HEV) powertrains where board space is at a premium.
When designing with this device, ensure adequate input and output capacitance to maintain stability and meet transient requirements. The selectable output headroom should be chosen based on the downstream load's voltage tolerance. Also, consider the thermal performance of the VQFN-20 package; while the module is efficient, proper PCB layout with thermal vias is recommended for high ambient temperature operation.
直接替換替代品，適用於 UCC33020QWRHBRQ1 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
UCC33020QRAQRQ1
✅ 直接替換📋 參考替代品（不在目錄中）
UCC33020QWRHBRQ1
✅ 直接替換聯絡詢價
查看資料表 →UCC33020Q1
✅ 直接替換📋 參考替代品（不在目錄中）
UCC33020
✅ 直接替換📋 參考替代品（不在目錄中）
UCC33020QWRHBRQ1 最大額定值與電氣特性
| Output Power | 1.0 W |
| 輸入電壓範圍 | 3.0 V to 5.5 V |
| 輸出電壓 | 5.0 V (selectable headroom 5.5 V) |
| Output Current | 200 mA |
| Isolation Rating | 3 kVRMS |
| Load Regulation | 0.5% typical |
| Line Regulation | 4 mV/V typical |
| 封裝 | VQFN-20 |
| 安裝類型 | Surface Mount |
| Automotive Qualification | AEC-Q100 |
| RoHS 狀態 | Compliant |
| REACH Status | Compliant |
UCC33020QWRHBRQ1 腳位配置
| 腳位 1 | VIN — Input supply voltage (3.0V to 5.5V) |
| 腳位 2 | GND — Ground |
| 腳位 3 | EN — Enable pin (active high) |
| 腳位 4 | VOUT — Regulated output voltage (5.0V) |
| 腳位 5 | VOUT_SENSE — Output voltage sense |
| 腳位 6 | GND — Ground |
| 腳位 7 | NC — No connect |
| 腳位 8 | NC — No connect |
| 腳位 9 | NC — No connect |
| 腳位 10 | NC — No connect |
| 腳位 11 | NC — No connect |
| 腳位 12 | NC — No connect |
| 腳位 13 | NC — No connect |
| 腳位 14 | NC — No connect |
| 腳位 15 | NC — No connect |
| 腳位 16 | NC — No connect |
| 腳位 17 | NC — No connect |
| 腳位 18 | NC — No connect |
| 腳位 19 | NC — No connect |
| 腳位 20 | NC — No connect |
典型應用
UCC33020QWRHBRQ1 適用於 6 應用s: Automotive Traction Inverter Gate Driver Power, Isolated Sensor Interface Power, Battery Management System Auxiliary Power, Isolated Communication Interface Power, High-Voltage Gate Driver Supply, Medical Device Isolated Power.
Automotive Traction Inverter Gate Driver Power
The UCC33020QWRHBRQ1 provides isolated 5V power for IGBT/SiC gate drivers in automotive traction inverters. Its 3kVRMS isolation ensures safe operation in high-voltage environments, while the 1W output power is sufficient for gate driver supply. The compact VQFN-20 package saves board space in power-dense inverter designs. The selectable 5.5V headroom provides margin for gate driver voltage requirements, ensuring reliable switching under all conditions.
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Isolated Sensor Interface Power
The UCC33020QWRHBRQ1 powers isolated sensor interfaces in automotive and industrial systems. Its 3kVRMS isolation protects low-voltage sensing circuitry from high-voltage transients, while the 1W output power supports multiple sensors. The 5V regulated output is compatible with standard sensor ICs, and the 0.5% load regulation ensures accurate sensor readings. The module's integrated transformer eliminates the need for external magnetics, simplifying design and reducing EMI.
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Battery Management System Auxiliary Power
The UCC33020QWRHBRQ1 provides isolated auxiliary power for battery management systems (BMS) in EVs and HEVs. Its 3kVRMS isolation ensures safe operation between high-voltage battery packs and low-voltage control electronics. The 1W output power is sufficient for BMS communication interfaces and monitoring circuits. The wide input range (3.0V to 5.5V) allows operation from various battery cell voltages, and the compact package fits space-constrained BMS designs.
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Isolated Communication Interface Power
The UCC33020QWRHBRQ1 powers isolated communication interfaces such as CAN, RS-485, and SPI isolators. Its 3kVRMS isolation prevents ground loops and noise coupling, ensuring reliable data transmission in industrial and automotive environments. The 5V output is compatible with common transceivers, and the 200mA current capability supports multiple interface channels. The module's integrated transformer reduces component count and PCB area, making it ideal for compact communication modules.
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High-Voltage Gate Driver Supply
The UCC33020QWRHBRQ1 provides isolated power for high-side gate drivers in applications such as motor drives and power converters. Its 3kVRMS isolation allows safe operation at high voltages, while the 1W output power is sufficient for gate driver ICs. The selectable 5.5V headroom ensures adequate gate drive voltage for SiC and GaN devices. The compact package and integrated transformer simplify layout and reduce parasitic inductance, improving switching performance.
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Medical Device Isolated Power
The UCC33020QWRHBRQ1 provides isolated power for medical devices requiring patient safety isolation. Its 3kVRMS isolation meets stringent safety standards, while the 1W output power supports low-power medical sensors and monitoring circuits. The 5V regulated output is compatible with medical-grade ICs, and the compact package is suitable for portable devices. The module's high integration reduces design complexity and improves reliability in critical medical applications.
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推薦產品摘要
工程參考資料，適用於 UCC33020QWRHBRQ1 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | UCC33020QRAQRQ1 | UCC33020Q1 | UCC33020 | ADuM5000 |
|---|---|---|---|---|---|
| Package | VQFN-20 | VQFN-20 | VQFN-20 | VQFN-20 | SOIC-16 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices |
| Output Power | 1.0 W | 1.0 W | 1.0 W | 1.0 W | 0.5 W |
| Input Voltage Range | 3.0V to 5.5V | 3.0V to 5.5V | 3.0V to 5.5V | 3.0V to 5.5V | 3.0V to 5.5V |
| Output Voltage | 5.0V (selectable 5.5V) | 5.0V (selectable 5.5V) | 5.0V (selectable 5.5V) | 5.0V (selectable 5.5V) | 5.0V |
| Isolation Rating | 3 kVRMS | 3 kVRMS | 3 kVRMS | 3 kVRMS | 2.5 kVRMS |
| Automotive Qualification | AEC-Q100 | AEC-Q100 | AEC-Q100 | No | No |
主要差異化特點
- Integrated transformer technology (對比ADuM5000)
- Higher isolation rating (對比ADuM5000)
- Automotive qualification (對比UCC33020)
設計說明
Place input and output capacitors close to the VIN and VOUT pins to minimize parasitic inductance and ensure stable operation. Use low-ESR ceramic capacitors with adequate voltage rating. For the VQFN-20 package, ensure proper thermal vias under the exposed pad to enhance heat dissipation, especially in high ambient temperature automotive environments.
The UCC33020QWRHBRQ1 dissipates power internally, and the VQFN-20 package has limited thermal capability. For reliable operation at high ambient temperatures, provide a solid copper ground plane and thermal vias to the PCB backside. Consider derating the output power if the ambient temperature exceeds the recommended operating range.
Do not exceed the input voltage range of 5.5V, as this can damage the device. Ensure the selectable output headroom is set correctly for the downstream load to avoid overvoltage. Also, verify that the isolation rating meets your system's safety requirements, as 3kVRMS may not be sufficient for all high-voltage applications.
合規資訊
AEC-Q100 qualified per TI product page. RoHS and REACH compliant per TI datasheet.
