TPS3808

現行

具有可編程延遲和手動復位功能的低靜態電流監控器

立即訂購

產品規格表

document-pdfAcrobat TPS3808 Low-Quiescent-Current, Programmable-Delay Supervisory Circuit datasheet (Rev. M) (英文) PDF | HTML

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TPS3808E

現行

‌具有可編程延遲和手動重設功能的 600nA 超低靜態電流監控器 TPS3808E offers superior accuracy to help optimize system reset timing, and a 4-fold reduction in quiescent current.

TPS3808

現行

產品規格表

立即訂購

產品詳細資料

Rating

Catalog

Number of supplies monitored

1

Threshold voltage 1 (typ) (V)

0.405, 0.84, 1.12, 1.16, 1.4, 1.67, 1.77, 2.33, 2.79, 3.07, 4.65, Adjustable

Features

Manual reset capable

Reset threshold accuracy (%)

2

Iq (typ) (mA)

0.0024

Output driver type/reset output

Active-low, Open-drain

Watchdog timer WDI (s)

None

Operating temperature range (°C)

-40 to 125

Rating

Catalog

Number of supplies monitored

1

Threshold voltage 1 (typ) (V)

0.405, 0.84, 1.12, 1.16, 1.4, 1.67, 1.77, 2.33, 2.79, 3.07, 4.65, Adjustable

Features

Manual reset capable

Reset threshold accuracy (%)

2

Iq (typ) (mA)

0.0024

Output driver type/reset output

Active-low, Open-drain

Watchdog timer WDI (s)

None

Operating temperature range (°C)

-40 to 125

SOT-23 (DBV)

6

8.12 mm² (2.9 mm × 2.8 mm)

WSON (DRV)

6

4 mm² (2 mm × 2 mm)

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 0.9 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 and 2-mm × 2-mm WSON packages

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 0.9 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 and 2-mm × 2-mm WSON packages

The TPS3808 family of microprocessor supervisory circuits monitors 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 manual reset ( MR) return above the respective thresholds.

The TPS3808 device uses a precision reference to achieve 0.5% threshold accuracy for V_IT ≤ 3.3 V. The reset delay time can be set to 20 ms by disconnecting the C_T pin, 300 ms by connecting the C_T pin to V_DD using a resistor, or can be user-adjusted between 1.25 ms and 10 s by connecting the C_T pin to an external capacitor. The TPS3808 device has a very low typical quiescent current of 2.4 µA, so it is well-suited to battery-powered applications. It is available in the SOT-23 and 2-mm × 2-mm WSON packages, and is fully specified over a temperature range of –40°C to 125°C (T_J).

The TPS3808 family of microprocessor supervisory circuits monitors 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 manual reset ( MR) return above the respective thresholds.

The TPS3808 device uses a precision reference to achieve 0.5% threshold accuracy for V_IT ≤ 3.3 V. The reset delay time can be set to 20 ms by disconnecting the C_T pin, 300 ms by connecting the C_T pin to V_DD using a resistor, or can be user-adjusted between 1.25 ms and 10 s by connecting the C_T pin to an external capacitor. The TPS3808 device has a very low typical quiescent current of 2.4 µA, so it is well-suited to battery-powered applications. It is available in the SOT-23 and 2-mm × 2-mm WSON packages, and is fully specified over a temperature range of –40°C to 125°C (T_J).

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TPS3842

現行

具可編程延遲與去突波功能的 42V 小型欠電壓或過壓監控器 Wide Vin with smaller package

TPS3840

現行

具有手動重設和可編程重設延時功能的奈米功率高輸入電壓監控器 Lower quiescent current (300nA) with supply voltage range 1.5-10V

TPS3899

現行

具有可編程感測和重設延遲的奈米功率監控器 Lower quiescent current (125nA) and push-button capable

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重要文件	類型	標題	格式選項	日期
*	資料表	TPS3808 Low-Quiescent-Current, Programmable-Delay Supervisory Circuit datasheet (Rev. M)	PDF \| HTML	2023/3/4
	應用說明	Voltage and Processor Monitoring Solutions in Factory Automation and Control App (Rev. A)		2021/8/5
	應用說明	Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A)		2020/3/17
	選擇指南	Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H)		2020/2/28
	電子書	Voltage Supervisor and Reset ICs: Tips, Tricks and Basics		2019/6/28
	應用說明	Comparing Voltage and Processor Monitoring Solutions		2019/4/5
	Application brief	Latching a Voltage Supervisor (Reset IC) (Rev. A)		2019/4/5
	Application brief	Mitigating the Voltage Glitch on the Output of a Voltage Supervisor (Reset IC) D		2018/6/27
	選擇指南	Power Management Guide 2018 (Rev. R)		2018/6/25
	設計指南	Using the TMS320C6657 to Implement Efficient OPUS Codec Solution Design Guide		2015/6/16
	應用說明	Setting the SVS Voltage Monitor Threshold		2012/5/23
	應用說明	Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs		2011/9/19
	應用說明	Sensitivity Analysis for Power Supply Design		2011/9/6
	應用說明	Power Two Xilinx(TM) LX240 Virtex-6(TM) Devices		2010/4/20
	白皮書	Spartan 6 LX150T Modular Solution		2009/10/14
	使用指南	Virtex 6 LX130T Module design		2009/8/27

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許多 TI 參考設計包含 TPS3808

使用我們的參考設計選擇工具，以檢視並找出最適合您的應用和參數的設計。

檢視參考設計

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

適用 TI 的評估品項標準條款與條件。

TPS3808

具有可編程延遲和手動復位功能的低靜態電流監控器

現在提供此產品的更新版本

具備升級功能，可直接投入使用替代所比較的裝置。

TPS3808

產品詳細資料

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