Overview
The TPS3840PL30DBVRQ1 is a member of the TPS3840-Q1 family of automotive nano IQ voltage supervisors produced by Texas Instruments. This device is designed to operate over a wide voltage range from 1.5 V to 10 V, making it versatile for various automotive and low-power applications. It features low quiescent current, high accuracy, and programmable reset time delay, making it an ideal solution for voltage monitoring in battery-powered and low-power systems.
The TPS3840PL30DBVRQ1 is AEC-Q100 qualified, ensuring it meets stringent automotive standards with an operating temperature range of –40°C to +125°C. It also includes built-in glitch immunity protection and low power-on reset voltage, enhancing its reliability in harsh environments.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VDD (Input Supply Voltage) | – | 1.5 | – | 10 | V |
| VIT- (Negative-going Input Threshold) | –40°C to 125°C | –1.5% | 1% | 1.5% | % |
| VHYS (Hysteresis on VIT-) | VIT- = 1.6 V to 3.0 V | 75 mV | 100 mV | 125 mV | mV |
| VHYS (Hysteresis on VIT-) | VIT- = 3.1 V to 4.9 V | 175 mV | 200 mV | 225 mV | mV |
| IDD (Supply Current into VDD) | VDD > VIT+, TA = –40°C to 125°C | 300 nA | 700 nA | – | nA |
| VMR_L (Manual Reset Logic Low Input) | – | 600 mV | – | – | mV |
| VMR_H (Manual Reset Logic High Input) | – | – | 0.7VDD | – | V |
| tSTRT (Startup Delay) | – | – | 350 µs | – | µs |
| tD (Reset Time Delay) | No capacitor to 10-µF capacitor | 50 µs | – | 6.2 s | µs to s |
Key Features
- Qualified for automotive applications with AEC-Q100 certification and an operating temperature range of –40°C to +125°C.
- Wide operating voltage range from 1.5 V to 10 V.
- Nano supply current: 350 nA (typical), 700 nA (maximum).
- Fixed threshold voltage (VIT-) from 1.6 V to 4.9 V in 0.1-V steps with high accuracy (1% typical, 1.5% maximum) and built-in hysteresis.
- Fast start-up delay (tSTRT): 350 µs (maximum).
- Programmable capacitor-based reset time delay.
- Active-low manual reset (MR) with built-in glitch immunity protection.
- Three output topologies: open-drain active-low, push-pull active-low, and push-pull active-high.
- Package: 5-pin SOT-23 (DBV).
Applications
- Automotive head unit and cluster.
- Automotive display, integrated cockpit, and driver monitoring systems.
- Telematics control unit and emergency call systems.
- Battery-powered and low-power applications.
Q & A
- What is the operating voltage range of the TPS3840PL30DBVRQ1?
The TPS3840PL30DBVRQ1 operates over a voltage range from 1.5 V to 10 V.
- What is the typical supply current of the TPS3840PL30DBVRQ1?
The typical supply current is 350 nA, with a maximum of 700 nA.
- What are the available output topologies for the TPS3840-Q1 family?
The available output topologies are open-drain active-low, push-pull active-low, and push-pull active-high.
- How is the reset time delay programmed in the TPS3840PL30DBVRQ1?
The reset time delay is programmed using an external capacitor connected to the CT pin.
- What is the startup delay of the TPS3840PL30DBVRQ1?
The startup delay (tSTRT) is 350 µs (maximum).
- What are the temperature ratings for the TPS3840PL30DBVRQ1?
The device operates over a temperature range of –40°C to +125°C.
- What is the package type of the TPS3840PL30DBVRQ1?
The package type is 5-pin SOT-23 (DBV).
- Does the TPS3840PL30DBVRQ1 have built-in glitch immunity protection?
- What are some common applications of the TPS3840PL30DBVRQ1?
- Is the TPS3840PL30DBVRQ1 AEC-Q100 qualified?
