圖片僅供參考
TPS3305-18DR
+物料清單IC SUPERVISOR 2 CHANNEL 8SOIC
-
製造商德州儀器
-
製造商部分 #TPS3305-18DR
-
有存貨1672
365 天品質保證
7*24 小時服務保證
90-日售後保障
正品保證
規格
| 屬性 | 價值 |
| Part Status | Active |
| Base Product Number | TPS3305 |
| DigiKey Programmable | Not Verified |
| Type | Multi-Voltage Supervisor |
| Voltage - Threshold | 1.68V, 2.93V |
| Output | Push-Pull, Totem Pole |
| Reset | Active High/Active Low |
| Reset Timeout | 140ms Minimum |
| Operating Temperature | -40°C ~ 85°C (TJ) |
| Mounting Type | Surface Mount |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC |
| Packaging | Bulk, Cut Tape (CT), Tape & Reel (TR) |
| Number of Voltages Monitored | 2 |
概述
Description
Key features include fixed threshold voltage levels to monitor 3.3V, 5V, and an adjustable third voltage, typically set for 1.8V systems. The TPS3305-18DR generates a reset signal for a microcontroller during power-up, power-down, and brownout conditions, with a typical reset delay time to ensure supply stability before system operation begins. It provides an active low reset output and an open-drain architecture, allowing for use with multiple devices.
The TPS3305-18DR is ideal for applications requiring precise voltage supervision, such as communication equipment, industrial controls, and consumer electronics, helping to prevent system errors due to supply voltage variations.
Equivalent
1. ADM1232 – by Analog Devices.
2. MCP1316 – by Microchip Technology.
3. MAX706 – by Maxim Integrated (now part of Analog Devices).
4. MIC2775 – by Microchip Technology.
5. STM690 – by STMicroelectronics.
These components offer similar functionalities like voltage monitoring and reset control. Always check the datasheets to ensure compatibility with your specific application requirements.
Features
1. Voltage Monitoring: It monitors three supply voltages, ensuring reliable operation by asserting a reset if any voltage drops below a specified threshold.
2. Reset Functionality: The device provides a RESET output signal when the monitored voltage drops below the threshold or during a power-up, ensuring that the microprocessor starts in a known state.
3. Watchdog Timer: The built-in watchdog timer enhances system reliability by resetting the microprocessor if it fails to toggle the watchdog input within a specified time interval.
4. Manual Reset Input: It includes an input for an external reset signal, allowing users to manually trigger a reset.
5. Low Supply Current: The device operates with low quiescent current, making it suitable for battery-powered applications.
6. Temperature Range: It operates over a wide temperature range, typically from -40°C to 85°C.
These features make the TPS3305-18DR suitable for ensuring reliable operation in a variety of microprocessor-based applications.