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TPS3808-Q1
- Qualified for Automotive Applications
- Power-On Reset Generator With Adjustable Delay Time: 1.25 ms to 10 s
- Very Low Quiescent Current: 2.4 µA Typical
- High Threshold Accuracy: 0.5% Typical
- Fixed Threshold Voltages for Standard Voltage Rails From 1.2 V to 5 V and Adjustable Voltage Down to 0.4 V Are Available
- Manual Reset (MR) Input
- Open-Drain RESET Output
- Temperature Range: –40°C to +125°C
- Small SOT-23 Package and WSON Package (TPS3808G01QDRVRQ1 only)
The TPS3808Gxx-Q1 microprocessor supervisory circuits monitor system voltages from 0.4 V to 5 V, asserting an open-drain RESET signal when the SENSE voltage drops below a preset threshold or when the manual reset (MR) pin drops to a logic low. The RESET output remains low for the user-adjustable delay time after the SENSE voltage and MR return above their thresholds.
The TPS3808Gxx-Q1 device uses a precision reference to achieve 0.5% threshold accuracy for VIT ≤ 3.3 V. The reset delay time can be set to 20 ms by disconnecting the CT pin, 300 ms by connecting the CT pin to VDD using a resistor, or can be user-adjusted from 1.25 ms to 10 s by connecting the CT pin to an external capacitor. The TPS3808Gxx-Q1 has a very low typical quiescent current of 2.4 µA, so it is well suited for battery-powered applications. The device is available in a small SOT-23 package (one option available in WSON) and is fully specified over a temperature range of –40°C to +125°C (TJ).
For more information about TI’s voltage supervisor portfolio, visit the Supervisor and Reset IC Overview Page page.
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技術文件
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檢視所有 6 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS3808Gxx-Q1 Low-Quiescent-Current Programmable-Delay Supervisory Circuit datasheet (Rev. J) | PDF | HTML | 2017年 6月 13日 |
| Functional safety information | TPS3808-Q1 Functional Safety FIT Rate and Failure Mode Distribution | 2019年 12月 19日 | ||
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 2019年 6月 28日 | ||
| Design guide | Automotive Power Reference Design for Low-Power TDA3x Based Systems (Rev. B) | 2017年 6月 14日 | ||
| Design guide | Automotive Power Frontend With Cold Crank Operation and EMI Filter Design Guide | 2015年 11月 30日 | ||
| Design guide | TIDA-00530 Test Results | 2015年 10月 13日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
開發板
TPS3808G01Q1EVM — TPS3808G01-Q1 車用電壓監控器評估模組
The TPS3808G01Q1EVM is an evaluation modulate (EVM) for the TPS3808G01-Q1 voltage supervisor. The EVM has a supply voltage range from 1.8 V to 6.5 V. It offers input connections for all device input and output pins. Test points are provided to give the user access to an extra ground (...)
使用指南: PDF
模擬型號
TPS3808G01 Unencrypted PSpice Transient Model Package (Rev. B)
SLIM038B.ZIP (81 KB) - PSpice Model
模擬工具
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
參考設計
TIDA-080004 — 適用於擴增實境抬頭顯示的電子與 LED 驅動器參考設計
This reference design provides an electronics subsystem designed to drive an automotive augmented reality (AR) head-up display (HUD). DLP® technology enables bright, crisp, highly saturated head-up displays that project critical driving information onto the windshield of the car, reducing (...)
參考設計
TIDA-01004 — 採用 100 萬像素成像元件、Bayer 視訊輸出和同軸電纜供電技術的車用攝影機模組參考設計
The TIDA-01004 reference design is a remote automotive camera module that connects over a high speed serial video interface to a display or machine vision processing system. It uses TIs FPD-Link III SerDes technology to transmit uncompressed MegaPixel video data, bidirectional control signals and (...)
參考設計
TIDA-00530 — 適用於低功耗 TDA3x 系統的車用電源參考設計
This solution was designed to make an integrated, size-optimized power design for ADAS applications using the TDA3x SoC off of an automotive battery input. By targeting only applications with lower processing needs, we’re able to choose devices and components which are smaller, compared (...)
參考設計
TIDA-00699 — 具有冷起動運作、瞬態保護及 EMI 濾波器的前端電源設計參考
This solution was designed to be a broadly applicable automotive off-battery front end power supply for 10-15W systems. There is a focus on EMI/EMC testing and compliance as well to help designers satisfy the regulatory requirements associated with producing an automotive electronic subsystem.
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23 (DBV) | 6 | Ultra Librarian |
| WSON (DRV) | 6 | Ultra Librarian |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點