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TPS3307-18DR
+NomenclatureIC SUPERVISOR 3 CHANNEL 8SOIC
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FabricantTexas Instruments
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Pièce fabricant #TPS3307-18DR
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Package SOIC-8
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En stock4353
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Spécifications
| Attribut | Valeur |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Type | Multi-Voltage Supervisor |
| Number of Voltages Monitored | 3 |
| Voltage - Threshold | 1.68V, 2.93V, Adj |
| Output | Push-Pull, Totem Pole |
| Reset | Active High/Active Low |
| Reset Timeout | 140ms Minimum |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Présentation
Description
Key features of the TPS3307-18DR include the ability to monitor three independent voltages. The primary reset threshold voltage is 1.8V, with additional monitoring for 3.3V and adjustable voltage levels. It includes a reset function that is triggered if any of the monitored voltages fall below their respective thresholds, thereby preventing data corruption or system malfunctions.
The device is housed in a small SOIC-8 package, making it suitable for space-constrained applications. It operates over a temperature range of -40°C to 85°C, making it versatile for various environmental conditions. Low power consumption of the TPS3307-18DR also makes it an effective choice for battery-operated systems. Overall, it provides robust protection for digital systems by ensuring stable operation through reliable voltage supervision.
Equivalent
1. MAX706 series from Maxim Integrated.
2. ADM690 series from Analog Devices.
3. MCP1316 series from Microchip Technology.
4. LTC690 series from Analog Devices/Linear Technology.
These alternatives have similar functions but may vary slightly in specifications such as voltage thresholds, timing, or packaging, so it's important to verify compatibility with specific design requirements.
Features
1. Voltage Monitoring: It supports dual low-threshold voltage monitoring, with threshold voltages set for 1.8V, 3.3V, and an adjustable third channel.
2. Manual Reset: An active-low manual reset input (MR) allows for external reset control, offering additional flexibility.
3. Reset Delay Timer: Incorporates an integrated 200-ms reset delay timer that ensures stable system initialization.
4. Active-Low Reset Output: Provides a reset output (active-low) for power-on reset and voltage drop recovery.
5. Low Supply Current: Operates with a low supply current of typically 9 µA, which is advantageous for battery-powered applications.
6. Watchdog Functionality: Includes a watchdog timer with a selectable timeout period to monitor system operation.
7. Temperature Range: It functions over an extended temperature range from −40°C to +125°C, making it suitable for harsh environments.
8. Package: Available in an 8-pin SOIC package, facilitating easy integration into various circuit designs.
These features make the TPS3307-18DR suitable for safeguarding sensitive electronic systems against voltage irregularities and ensuring reliable operation.
Pinout
The TPS3307-18DR comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. The key functions include:
1. Voltage Monitoring: It monitors three voltage rails, typically 3.3V, 5V, and an adjustable voltage down to 1.8V.
2. Reset Function: It provides a reset output that is asserted when any of the monitored voltages drop below their specified thresholds. The reset remains asserted for a fixed time after all voltages are above the threshold, allowing the system to stabilize.
3. Manual Reset Input: It features a manual reset input for external reset control.
4. Active-Low Outputs: The reset output is active-low.
These features make it suitable for applications requiring high reliability and precise voltage monitoring, such as microprocessor and DSP systems.