- 制造厂商:TI
- 产品类别:电源管理
- 技术类目:监控器和复位 IC
- 功能描述:汽车类单通道电压检测器
- 点击这里打开及下载TPS3803-Q1的技术文档资料
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The TPS3803-Q1 and TPS3805-Q1 families of supervisory circuits provide circuit initialization and timing supervision, primarily for DSPs and processor-based systems.
The TPS3803G15-Q1 device has a fixed-sense threshold voltage VIT set by an internal voltage divider, whereas the TPS3803-01-Q1 has an adjustable SENSE input that can be configured by two external resistors. In addition to the fixed sense threshold monitored at VDD, the TPS3805-Q1 devices provide a second adjustable SENSE input. RESET is asserted in case either of the two voltages drops below VIT.
During power on, RESET is asserted when supply voltage VDD becomes higher than 0.8 V. Thereafter, the supervisory circuit monitors VDD (and/or SENSE) and keeps RESET active as long as VDD or SENSE remains below the threshold voltage VIT. As soon as VDD (SENSE) rises above the threshold voltage VIT, RESET is deasserted again. The product spectrum is designed for 1.5-V, 3.3-V, and adjustable supply voltages.
The devices are available in a 5-pin SC-70 package. The TPS3803-Q1 and TPS3805-Q1 devices are characterized for operation over a temperature range of 40°C to 125°C.
- Qualified for Automotive Applications
- Single Voltage Detector (TPS3803): Adjustable and 1.5 V
- Dual Voltage Detector (TPS3805): Adjustable and 3.3 V
- High ±1.5% Threshold Voltage Accuracy
- Supply Current: 3 μA Typical at VDD = 3.3 V
- Push/Pull Reset Output (TPS3805), Open-Drain Reset Output (TPS3803)
- Temperature Range: –40°C to 125°C
- 5-Pin SC-70 Package
- Number of supplies monitored
- 1
- Threshold voltage 1 (Typ) (V)
- Adjustable, 1.4
- Features
- Ease-of-use
- Reset threshold accuracy (%)
- 1.5
- Output driver type/reset output
- Active-low, Open-drain
- Time delay (ms)
- 0
- Rating
- Automotive
- Watchdog timer WDI (sec)
- None
- Operating temperature range (C)
- -40 to 125
TPS3803-Q1的完整型号有:2T03-01QDCKRG4Q1、2T03G15QDCKRG4Q、TPS3803-01QDCKRQ1、TPS3803G15QDCKRQ1,以下是这些产品的关键参数及官网采购报价:
2T03-01QDCKRG4Q1,工作温度:-40 to 125,封装:SC70 (DCK)-5,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAUAG,TI官网2T03-01QDCKRG4Q1的批量USD价格:.408(1000+)
2T03G15QDCKRG4Q,工作温度:-40 to 125,封装:SC70 (DCK)-5,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAUAG,TI官网2T03G15QDCKRG4Q的批量USD价格:.408(1000+)
TPS3803-01QDCKRQ1,工作温度:-40 to 125,封装:SC70 (DCK)-5,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAUAG,TI官网TPS3803-01QDCKRQ1的批量USD价格:.408(1000+)
TPS3803G15QDCKRQ1,工作温度:-40 to 125,封装:SC70 (DCK)-5,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAUAG,TI官网TPS3803G15QDCKRQ1的批量USD价格:.408(1000+)
TPS3803Q1EVM — TPS3803X-Q1 电压检测器评估模块
TPS380XQ1 EVM 包括 TPS3803-Q1 和 TPS3805-Q1 系列监控电路,主要为 DSP 和基于处理器的系统提供电路初始化和计时监测。该 EVM 采用 TPS3803-01-Q1、TPS3803G15-Q1 和 TPS3805H33-Q1 三个器件,从而轻松实现评估。TPS3803G15-Q1 具有一个固定感应阈值电压,而 TPS3803Q1 有一个由外部电阻分压器配置的可调感应输入。TPS3805-Q1 具有第二个感应输入以及一个固定阈值电压。PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice
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