Overview
The TLV840CADL29DBVR is a part of the TLV840 family of low-voltage supervisors or reset ICs manufactured by Texas Instruments. This device is designed to operate with very low quiescent current across a wide voltage and temperature range. It offers a combination of low power consumption, high accuracy, and low propagation delay, making it suitable for various industrial and battery-powered applications.
The TLV840CADL29DBVR specifically features an open-drain, active-low output and a fixed reset time delay. It is available in a SOT-23 5-pin package, which is an industry-standard form factor.
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 (Typical) | ±0.5% | % |
| Hysteresis (VHYS) (Typical) | 5% | % |
| Reset Time Delay (Minimum without Capacitor) | 40 µs | µs |
| Output Type | Open-drain, Active-low | |
| Temperature Range | -40°C to +125°C | °C |
| Package | SOT23-5 (DBV) |
Key Features
- Low Power Consumption: Nano-quiescent current of 120 nA (Typical).
- High Accuracy: Fixed threshold voltage with ±0.5% accuracy (Typical).
- Programmable Reset Time Delay: Although the TLV840CADL29DBVR has a fixed reset delay, other variants in the TLV840 family allow for programmable reset time delay using an external capacitor.
- Active-Low Manual Reset: Available in some variants (not in TLV840CADL29DBVR), but the TLV840M version includes this feature.
- Four Output Topologies: Available in different variants, including open-drain and push-pull, active-low and active-high outputs.
- Glitch Immunity and Hysteresis: Built-in glitch immunity protection and hysteresis to ensure stable operation.
- Low Power-On Reset Voltage (VPOR): Ensures proper reset operation at low supply voltages.
Applications
- Motor Drives: For monitoring and controlling motor drive systems.
- Factory Automation and Control: Suitable for industrial automation and control systems.
- Home Theater and Entertainment: Used in consumer electronics for reliable power management.
- Electronic Point of Sale: For ensuring stable operation in POS systems.
- Grid Infrastructure: Applicable in grid-related infrastructure for voltage monitoring.
- Data Center and Enterprise Computing: Used in data centers and enterprise computing environments for reliable power supervision.
- Multifunction Printer: Suitable for use in multifunction printers and other office equipment.
Q & A
- What is the operating voltage range of the TLV840CADL29DBVR?
The operating voltage range is from 0.7 V to 6 V.
- What is the typical supply current of the TLV840CADL29DBVR?
The typical supply current is 120 nA.
- What are the available threshold voltages for the TLV840 family?
The threshold voltages are available from 0.8 V to 5.4 V in 100 mV steps.
- Does the TLV840CADL29DBVR have a programmable reset time delay?
No, the TLV840CADL29DBVR has a fixed reset time delay, but other variants in the TLV840 family offer programmable reset time delay using an external capacitor.
- What is the output type of the TLV840CADL29DBVR?
The output type is open-drain, active-low.
- What is the temperature range of the TLV840CADL29DBVR?
The temperature range is from -40°C to +125°C.
- In what package is the TLV840CADL29DBVR available?
The device is available in a SOT23-5 (DBV) package.
- What are some common applications of the TLV840 family?
Common applications include motor drives, factory automation, home theater and entertainment, electronic point of sale, grid infrastructure, data center and enterprise computing, and multifunction printers.
- Does the TLV840CADL29DBVR have built-in glitch immunity protection?
Yes, the device has built-in glitch immunity protection.
- How does the reset output behave when VDD falls below the threshold voltage?
The reset output is asserted when VDD falls below the threshold voltage and remains low for the specified reset time delay after VDD rises above the threshold voltage plus hysteresis.
