Overview
The TLV840MADL29DBVR from Texas Instruments is a nano-quiescent current voltage supervisor IC designed to operate over a wide input voltage range from 0.7 V to 6 V. This device is part of the TLV840 family, which is known for its low power consumption, high accuracy, and low propagation delay. The TLV840MADL29DBVR is particularly suited for applications requiring precise voltage monitoring and reset functionality with minimal current draw.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage Range | 0.7 to 6 | V |
| Supply Current (Typical) | 120 nA | nA |
| Fixed Threshold Voltage (VIT-) | 0.8 to 5.4 | V (in 100 mV steps) |
| Threshold Voltage Accuracy | ±0.5% | % |
| Hysteresis (VHYS) | 5% | % |
| Reset Time Delay (Minimum) | 40 µs (typical without capacitor) | µs |
| Output Type | Open-drain, active-low | |
| Package | SOT23-5 (DBV) | |
| Temperature Range | -40°C to +125°C | °C |
Key Features
- Programmable reset time delay using an external capacitor (CT pin)
- Active-low manual reset (MR pin) for TLV840M variants
- High accuracy threshold voltage with built-in hysteresis
- Low power-on reset voltage (VPOR) and glitch immunity protection for VDD
- Low open-drain output leakage current (Ilkg(OD))
- Four output topologies: open-drain active-low, push-pull active-low, open-drain active-high, push-pull active-high
Applications
- Motor Drives
- Factory Automation and Control
- Home Theater and Entertainment
- Electronic Point of Sale
- Grid Infrastructure
- Data Center and Enterprise Computing
- Multifunction Printers
- Automotive systems such as surround view systems, front cameras, automotive gateways, radar ECUs, and ADAS controllers
Q & A
- What is the operating voltage range of the TLV840MADL29DBVR? The operating voltage range is from 0.7 V to 6 V.
- What is the typical supply current of the TLV840MADL29DBVR? The typical supply current is 120 nA.
- How is the reset time delay programmed in the TLV840MADL29DBVR? The reset time delay can be programmed by connecting a capacitor between the CT pin and ground.
- What are the available output topologies for the TLV840 family? The available output topologies are open-drain active-low, push-pull active-low, open-drain active-high, and push-pull active-high.
- What is the temperature range of the TLV840MADL29DBVR? The temperature range is from -40°C to +125°C.
- Does the TLV840MADL29DBVR have built-in hysteresis? Yes, it has built-in hysteresis (VHYS) of 5% typical.
- What is the purpose of the manual reset (MR) pin in the TLV840MADL29DBVR? The manual reset pin allows for forcing the system into a hard reset when asserted.
- What package type is the TLV840MADL29DBVR available in? It is available in the SOT23-5 (DBV) package.
- What are some common applications of the TLV840MADL29DBVR? Common applications include motor drives, factory automation, home theater and entertainment, electronic point of sale, and automotive systems.
- How accurate is the threshold voltage monitoring of the TLV840MADL29DBVR? The threshold voltage accuracy is ±0.5% typical.
