Overview
The TPS386000-Q1, produced by Texas Instruments, is a family of automotive quad supply voltage supervisors designed to monitor multiple power rails with high precision. This device is capable of monitoring four power rails greater than 0.4 V and one power rail less than 0.4 V, including negative voltage, with a typical threshold accuracy of 0.25%. It features programmable delay times, a watchdog timer, and very low quiescent current, making it ideal for applications requiring robust and reliable voltage supervision.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | VQFN (RGP) | |
| Pins | 20 | |
| Operating Temperature Range | -40 to 125 | °C |
| Supply Voltage (VDD) | 1.8 to 6.5 | V |
| Quiescent Current (Iq) | 12 µA (typical) | |
| Threshold Accuracy | 0.25% (typical) | |
| Programmable Delay Time | 1.4 ms to 10 s | |
| Watchdog Timer Time-out Period | 0.6 sec | |
| ESD Classification | HBM Level H2, CDM Level C4B | |
| RoHS Status | Compliant |
Key Features
- Qualified for Automotive Applications with AEC Q100 Test Guidance
- Four complete SVS modules on one silicon platform
- Programmable delay time from 1.4 ms to 10 s
- Very low quiescent current of 12 µA (typical)
- Threshold accuracy of 0.25% (typical)
- SVS-1 with manual reset (MR) input
- SVS-1, 2, 3 with adjustable threshold down to 0.4 V
- SVS-4 with adjustable threshold at any positive or negative voltage using VREF (1.2 V) and window comparator
- Watchdog timer with dedicated output
- Well-controlled RESETn output during power-up and open-drain RESETn and WDO
- Compact 4-mm x 4-mm, 20-pin VQFN package
Applications
The TPS386000-Q1 is widely used in automotive applications to monitor and protect critical systems such as engine control units, transmission control units, and safety systems. It is also suitable for industrial applications where high reliability and robust performance are essential for ensuring proper system operation and safety.
- Automotive Systems: Engine control units, transmission control units, safety systems
- Advanced Driver Assistance Systems (ADAS): Front camera, surround view, long-range radar, short-range radar
- Industrial Applications: High-reliability systems requiring robust voltage supervision
Q & A
- What is the primary function of the TPS386000-Q1?
The primary function of the TPS386000-Q1 is to monitor multiple power rails and provide reset signals when the voltage drops below the programmed threshold.
- What is the typical threshold accuracy of the TPS386000-Q1?
The typical threshold accuracy of the TPS386000-Q1 is 0.25%.
- What is the range of programmable delay times for the TPS386000-Q1?
The programmable delay time for the TPS386000-Q1 ranges from 1.4 ms to 10 s.
- What is the quiescent current of the TPS386000-Q1?
The quiescent current of the TPS386000-Q1 is typically 12 µA.
- What types of applications is the TPS386000-Q1 suitable for?
The TPS386000-Q1 is suitable for automotive and industrial applications requiring robust and reliable voltage supervision.
- What is the operating temperature range of the TPS386000-Q1?
The operating temperature range of the TPS386000-Q1 is -40°C to 125°C.
- Does the TPS386000-Q1 support negative voltage monitoring?
Yes, the TPS386000-Q1 supports negative voltage monitoring through SVS-4 with a window comparator and VREF output.
- What is the package type and size of the TPS386000-Q1?
The TPS386000-Q1 is packaged in a 4-mm x 4-mm, 20-pin VQFN package.
- Is the TPS386000-Q1 RoHS compliant?
Yes, the TPS386000-Q1 is RoHS compliant.
- What is the watchdog timer time-out period for the TPS386000-Q1?
The watchdog timer time-out period for the TPS386000-Q1 is 0.6 seconds.
