产品概述
描述
The STM6905 supervisor is a low voltage/low supply current processor supervisor, designed to monitor up to five system power supply voltages. This device is targeted at applications such as set-top boxes (STBs), portable, battery-powered systems, networking and communication systems.
The device supports a push-button type manual reset input (MR). Two of the five supply monitors (VCCand V2IN) have fixed (customer-selectable, factory-trimmed) thresholds (VRST1and VRST2). The other three voltage monitor inputs (V3IN, V4IN and V5IN) are monitored using externally adjustable threshold (600 mV internal reference) to meet specific level requirements.
If any of the five monitored voltages drops below its factory-trimmed or adjustable thresholds, or if the MRis asserted to logic low, the reset output RSTis asserted (driven low). Once asserted, RSTis maintained low for a minimum delay period (tREC) after ALL monitored supplies rise above their respective thresholds and MRreturns to high. The reset output logic state is valid for VCCgreater than 0.8 V.
The STM6905 is available in a standard 8-lead MSOP (TSSOP) package.
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所有功能
- Quintuple voltage monitoring
- Accurate ±1.8 % across temperature voltage threshold (±1 % at 25 °C)
- Primary supply (VCC) monitor. Fixed (factory -programmed) reset thresholds: 3.078 V to 2.866 V
- Second fixed (V2IN) monitor. Fixed (factory-programmed) reset thresholds: 2.333 V to 1.050 V
- Three additional adjustable supply monitor inputs (externally adjustable)
- 600 mV internal reference
- RSToutput (open drain)
- Output guaranteed for VCC ≥ 0.8 V
- Reset delay time (TREC) on power-up: 210 ms (typ)
- Manual reset input (MR)
- Low supply current of 12 μA (typ)
- Power supply voltage 0.8 V to 5.5 V
- RoHS compliant (green package)
- 8-pin MSOP/TSSOP
- Operating temperature: –40 °C to 85 °C (industrial grade)
电路原理图
EDA符号、封装和3D模型
STMicroelectronics - STM6905
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符号
封装
3D模型
质量与可靠性
| 产品型号 | Marketing Status | 包 | 等级规格 | 符合RoHS级别 | 材料声明** |
|---|---|---|---|---|---|
| STM6905PWEDS6F | 批量生产 | MiniSO-8 | 工业 | Ecopack3 | |
| STM6905SFEDS6F | 批量生产 | MiniSO-8 | 工业 | Ecopack3 | |
| STM6905SYEDS6F | 批量生产 | MiniSO-8 | 工业 | Ecopack3 | |
| STM6905TGEDS6F | 批量生产 | MiniSO-8 | 工业 | Ecopack3 | |
| STM6905TWEDS6F | 批量生产 | MiniSO-8 | 工业 | Ecopack3 | |
| STM6905TZEDS6F | 批量生产 | MiniSO-8 | 工业 | Ecopack3 |
STM6905SFEDS6F
Package:
MiniSO-8Material Declaration**:
STM6905TWEDS6F
Package:
MiniSO-8Material Declaration**:
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持。
样片和购买
| 产品型号 | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | 包 | 包装类型 | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||||
| STM6905SYEDS6F | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| STM6905SFEDS6F | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| STM6905TGEDS6F | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| STM6905TWEDS6F | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| STM6905PWEDS6F | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| STM6905TZEDS6F | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
STM6905SYEDS6F 批量生产
STM6905SFEDS6F 批量生产
STM6905TGEDS6F 批量生产
STM6905TWEDS6F 批量生产
STM6905PWEDS6F 批量生产
STM6905TZEDS6F 批量生产