TPS389006
- Functional Safety-Compliant
- Development target for Functional Safety applications
- Documentation to aid IEC 61508 system design
- Systematic capability up to SIL 3
- Hardware capability up to SIL 3
- Monitor state-of-the art SOCs
- ±6 mV threshold accuracy (–40°C to +125°C)
- Input voltage range: 2.5 V to 5.5 V
- Undervoltage lockout (UVLO): 2.48 V
- Low standby quiescent current: 200 µA
- 6 channels with 2 remote sense
- Fixed window threshold levels
- 5 mV steps from 0.2 V to 1.475 V
- 20 mV steps from 0.8 V to 5.5 V
- Miniature solution and minimal component cost
- 3 mm x 3 mm QFN package
- Adjustable glitch immunity via I 2C
- User adjustable voltage threshold levels via I 2C
- Designed for safety applications
- Active-low open-drain NIRQ output
- Built-in 8-bit ADC for real-time voltage readouts
- Cyclic Redundancy Checking (CRC)
- Packet Error Checking (PEC)
- Sequence and fault logging
- Sync function for rail tagging
- Connect with a multichannel sequencer for sequencing functionality
The TPS389006 device is a SIL-3 compliant six-channel window supervisor IC with two remote sense pins available in a 16-pin 3 mm x 3 mm QFN package. This high accuracy multichannel voltage supervisor is designed for systems that operate on low-voltage supply rails and have narrow margin supply tolerances.
Remote sense pins enable a highly accurate voltage measurement on the high current core rail by accounting for voltage drop across PCB traces. I 2C functionality gives flexibility in selecting thresholds, reset delays, glitch filters, and pin functionality. The internal glitch immunity and noise filters eliminate the need for external RC components to reduce false resets resulting from power transients. In addition, device does not require any external resistors for setting overvoltage and undervoltage reset thresholds, which further optimizes overall accuracy, cost, solution size, and improves reliability for safety systems.
This device offers CRC error checking, sequence logging during turn ON or turn OFF, and a built-in ADC for voltage readouts to provide redundant error checking. In addition, TPS389006 offers a sync feature for tagging rails as they come up. The TPS389006 device also pairs with TI’s power-supply sequencer TPS38700 to ensure proper power-on sequence in addition to voltage monitoring for SIL-3 level compliance.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TPS389006 Multichannel Overvoltage and Undervoltage I2C Programmable Voltage Supervisor and Monitor datasheet | PDF | HTML | 2021/8/12 | ||
| 技術文章 | 以電源與處理器軌監控解決方案設計數據中心電源架構 | PDF | HTML | Download English Version | PDF | HTML | 2025/8/6 | |
| 應用說明 | Power Supply Design for AMD Versal™ AI Edge Series | PDF | HTML | 2024/1/29 |
設計與開發
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TPS389006Q1EVM — 適用於多通道、過電壓和欠電壓、I²C 電壓監控器的 TPS389006 評估模組
TPS389006Q1 評估模組 (EVM) 是評估六通道 TPS389006-Q1 的平台，是一款具 I2C 可編程性的整合式過電壓和欠電壓監控器。TPS389006-Q1 採用 16 接腳極纖薄四方扁平無引線 (WQFN) 封裝。此外，TPS389006Q1EVM 的設計可與 TPS38900x-Q1 (四通道和八通道) 其他變體搭配使用。如需詳細資訊請參閱使用指南。
TPS389006Q1EVM 可對多個 EVM 提供菊鏈功能，以進行多通道電壓監控。TPS389006-Q1 預設為預先編程單次可編程 (OTP) 選項，但 I2C 可針對不同臨界電壓和公差百分比重新編程 IC。
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TPS389387EVM — TPS389006 與 TPS38700S-Q1 聯合評估模組
TPS38900X-THRESHOLD-VOLTAGE-TOOL — TPS38900x threshold voltage tool
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (RTE) | 16 | Ultra Librarian |