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UCC33421

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具有集成变压器的 5V/5V、1.5W、5kVrms 隔离式直流/直流模块

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UCC33421

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产品详情

Rating Catalog Vin (max) (V) 5.5 Vin (min) (V) 4.5 Vout (max) (V) 5.7 Vout (min) (V) 4.85 Features 1.5W, Regulated, Reinforced isolation, Single output Device type Isolated modules Regulated outputs (#) 1 TI functional safety category Functional Safety-Capable Isolation rating Reinforced Operating temperature range (°C) -40 to 125
Rating Catalog Vin (max) (V) 5.5 Vin (min) (V) 4.5 Vout (max) (V) 5.7 Vout (min) (V) 4.85 Features 1.5W, Regulated, Reinforced isolation, Single output Device type Isolated modules Regulated outputs (#) 1 TI functional safety category Functional Safety-Capable Isolation rating Reinforced Operating temperature range (°C) -40 to 125
SO-MOD (DHA) 16 60.255 mm² (5.85 mm × 10.3 mm)
  • 1.5W maximum output power
  • 4.5V to 5.5V input voltage operation range
  • 5.0V, 5.5V regulated selectable output voltage
    • 5.0V: 300mA available load current
  • 0.5% typical load regulation
  • 4mV/V typical line regulation
  • Robust isolation barrier:
    • Isolation rating: 5kVRMS
    • Surge capability: 10.4kVPK
    • Working voltage: 1700VPK
    • ± 8KV IEC 61000-4-2 contact discharge protection across isolation barrier
    • 250V/ns common mode transient immunity
  • Power dense isolated DC/DC module with integrated transformer technology
  • Adaptive spread spectrum modulation (SSM)
  • Meets CISPR-32 Class B emission
  • Strong magnetic fields immunity
  • Overload and short circuit protection
  • Thermal shutdown
  • Low inrush current soft-start
  • Enable pin with fault reporting mechanism
  • Extended temperature range: –40°C to 125°C
  • SSOP-16 (5.85mm × 7.50mm) package
  • >8.2mm clearance and creepage
  • 1.5W maximum output power
  • 4.5V to 5.5V input voltage operation range
  • 5.0V, 5.5V regulated selectable output voltage
    • 5.0V: 300mA available load current
  • 0.5% typical load regulation
  • 4mV/V typical line regulation
  • Robust isolation barrier:
    • Isolation rating: 5kVRMS
    • Surge capability: 10.4kVPK
    • Working voltage: 1700VPK
    • ± 8KV IEC 61000-4-2 contact discharge protection across isolation barrier
    • 250V/ns common mode transient immunity
  • Power dense isolated DC/DC module with integrated transformer technology
  • Adaptive spread spectrum modulation (SSM)
  • Meets CISPR-32 Class B emission
  • Strong magnetic fields immunity
  • Overload and short circuit protection
  • Thermal shutdown
  • Low inrush current soft-start
  • Enable pin with fault reporting mechanism
  • Extended temperature range: –40°C to 125°C
  • SSOP-16 (5.85mm × 7.50mm) package
  • >8.2mm clearance and creepage

The UCC33421 is an industrial DC/DC power module with integrated transformer technology designed to provide 1.5W of isolated output power. It can support an input voltage operation range of 4.5V to 5.5V and regulate 5.0V output voltage with a selectable headroom of 5.5V.

The UCC33421 features a proprietary transformer architecture that achieves a 5kVRMS isolation rating, while simultaneously supporting low EMI and excellent load regulation.

The UCC33421 integrates protection features for increased system robustness such as enable pin with fault reporting mechanism, short circuit protection and thermal shutdown.

The UCC33421 comes in a miniaturized, low-profile SSOP (5.85mm × 7.50mm) package with 2.65mm height and > 8.2mm clearance and creepage.

The UCC33421 is an industrial DC/DC power module with integrated transformer technology designed to provide 1.5W of isolated output power. It can support an input voltage operation range of 4.5V to 5.5V and regulate 5.0V output voltage with a selectable headroom of 5.5V.

The UCC33421 features a proprietary transformer architecture that achieves a 5kVRMS isolation rating, while simultaneously supporting low EMI and excellent load regulation.

The UCC33421 integrates protection features for increased system robustness such as enable pin with fault reporting mechanism, short circuit protection and thermal shutdown.

The UCC33421 comes in a miniaturized, low-profile SSOP (5.85mm × 7.50mm) package with 2.65mm height and > 8.2mm clearance and creepage.
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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 UCC33421 Ultra-Small, 1.5W , 5.0V , 5kVRMS Isolation, Industrial DC/DC Module 数据表 PDF | HTML 2025-9-12
应用手册 如何让 UCC33420-Q1 通过 CISPR32 B 类认证 PDF | HTML 英语版 PDF | HTML 2025-11-18
证书 UCC33421-Q1 Certificate of Compliance CISPR25 Class 5 2025-10-28
功能安全信息 UCC33011(Q1), UCC33021(Q1) UCC33411(Q1), and UCC33421(Q1) Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2025-9-16
证书 UCC33421 Certificate of Compliance CISPR32 Class B 2025-8-20
应用手册 GESS-BMS 中的绝缘电阻检测设计 PDF | HTML 英语版 PDF | HTML 2025-1-29

设计与开发

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评估板

UCC33421EVM-092 — UCC33421 评估模块

UCC33421EVM-092 旨在供设计人员评估 UCC33xx1 系列汽车和工业级器件的性能和能力。UCC33421 是一种隔离式直流/直流转换器模块，能够在极小的紧凑型 DHA-16 (5.85mm × 7.50mm × 2.65mm) 封装中提供 1.5W 的功率和 5kVrms 的隔离，缩小了尺寸并提供高功率密度。在输入侧，UCC334x1 器件可在 4.5V 至 5.5V 电压范围内工作，UCC330x1 可在 3.0V 至 5.5V 电压范围内工作。配置 SEL 引脚时，UCC33x21 器件可将次级侧电压调节至 5V 或 5.5V，UCC33x11 可将电压调节至 3.3V (...)
用户指南: PDF | HTML
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仿真模型

UCC3342x and UCC3342x-Q1 SIMPLIS Model (Rev. B)

SLUM888B.ZIP (88 KB) - SIMPLIS 模型
支持的产品和硬件
计算工具

UCC3342X-CALC — 软启动上升时间和稳态突发开启持续时间计算器

This calculator is used to calculate the soft-start rise time and steady state burst-on duration for UCC3342x devices with different load and output capacitor configurations
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参考设计

TIDA-011012 — 适用于中压应用的 50kW SiC 模块化固态变压器参考设计

此设计实现了一款基于碳化硅 (SiC) 电源模块的三相固态变压器 (SST)。采用模块化架构，可将多个变换器子模块串联堆叠，以满足中压电网应用需求。高速开关 SiC 器件使 DC/AC 级能够以 10kHz 开关频率运行，双有源桥 (DAB) 隔离级能够以 100kHz 开关频率运行，从而减小高频磁性器件尺寸并提升整体功率密度。模块间通信可提供中压终端设备所需的高隔离电压电平。级联拓扑可将电网电压均匀分配至各子模块，使系统能够采用标准低耐压等级 SiC 器件，同时实现完整的中压运行能力。
支持的产品和硬件
参考设计

TIDA-01606 — 11kW 双向三相三级（T 型）逆变器和 PFC 参考设计

此参考设计概述了如何实现基于 SiC 的双向三级三相有源前端 (AFE) 逆变器和功率因数校正 (PFC) 级。此设计使用高达 90kHz 的开关频率和 LCL 输出滤波器来减小磁性元件的尺寸。峰值效率达到了 98.6%。此设计展示了如何在 DQ 域中实现完整的三相 AFE 控制。这款双向转换器可实现直流快速充电和车辆到电网 (V2G) 应用。
支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
SO-MOD (DHA) 16 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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