Overview
The TPS3703A7125DSERQ1 is an integrated overvoltage (OV) and undervoltage (UV) monitor or reset IC produced by Texas Instruments. This device is part of the TPS3703-Q1 family and is specifically designed for automotive applications, complying with the AEC-Q100 Grade 1 standard. It operates within a temperature range of –40°C to +125°C and features a highly accurate window threshold voltage with options for various time delays and manual reset capabilities. The device is packaged in a compact 6-pin DSE (WSON) package, making it ideal for systems with low-voltage supply rails and narrow margin supply tolerances.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package | WSON (6-pin) | 1.50 mm x 1.50 mm |
| Temperature Range | –40°C to +125°C | AEC-Q100 Grade 1 |
| Input Voltage Range | 1.7 V to 5.5 V | |
| Quiescent Current | Typical | 4.5 µA |
| Time Delay Options | Fixed and Programmable | 50 µs, 1 ms, 5 ms, 10 ms, 20 ms, 100 ms, 200 ms |
| Threshold Tolerance | ±3% to ±7% | |
| ESD Classification | HBM | Level 2 |
| ESD Classification | CDM | C7B |
| Reset Output | Open-drain active low |
Key Features
- Highly accurate window threshold voltages (±0.7% over temperature)
- Internal glitch immunity and hysteresis for noise immunity
- No external resistors required for setting overvoltage and undervoltage reset thresholds
- Fixed and programmable time delay options using a single external capacitor
- Manual reset (MR) pin for sequencing or hard reset
- Low threshold hysteresis to prevent false reset signals
- Separate SENSE input pin and VDD pin for redundancy in high-reliability systems
Applications
- Advanced Driver Assistance Systems (ADAS)
- ADAS domain controllers
- Automotive infotainment and cluster systems
- Digital cockpit systems
- Hybrid Electric Vehicles (HEV) and Electric Vehicles (EV)
Q & A
- What is the temperature range of the TPS3703A7125DSERQ1?
The TPS3703A7125DSERQ1 operates within a temperature range of –40°C to +125°C, complying with AEC-Q100 Grade 1 standards.
- What is the input voltage range for this device?
The input voltage range for the TPS3703A7125DSERQ1 is from 1.7 V to 5.5 V.
- What are the time delay options available for this device?
The device offers fixed time delay options of 50 µs, 1 ms, 5 ms, 10 ms, 20 ms, 100 ms, and 200 ms, as well as a programmable time delay option using a single external capacitor.
- Does the TPS3703A7125DSERQ1 require external resistors for setting thresholds?
No, the TPS3703A7125DSERQ1 does not require any external resistors for setting overvoltage and undervoltage reset thresholds.
- What is the typical quiescent current of the TPS3703A7125DSERQ1?
The typical quiescent current of the TPS3703A7125DSERQ1 is 4.5 µA.
- What are the ESD classification levels for this device?
The TPS3703A7125DSERQ1 has an HBM ESD classification level of 2 and a CDM ESD classification level of C7B.
- How does the manual reset (MR) pin function?
The manual reset (MR) pin allows for sequencing or hard reset by driving the MR pin to a logic low (VMR_L), asserting a reset signal.
- What types of applications is the TPS3703A7125DSERQ1 suitable for?
The TPS3703A7125DSERQ1 is suitable for automotive applications, including ADAS, ADAS domain controllers, automotive infotainment and cluster systems, digital cockpit systems, and HEV/EV systems.
- What is the package type and size of the TPS3703A7125DSERQ1?
The TPS3703A7125DSERQ1 is packaged in a 6-pin WSON (DSE) package with dimensions of 1.50 mm x 1.50 mm.
- How does the device handle noise immunity?
The device includes internal glitch immunity and hysteresis to ensure noise immunity and stable operation.
