Overview
The TLV809EA29DCKR is a low-power voltage supervisor (reset IC) produced by Texas Instruments. It is part of the TLV80xE and TLV81xE family, which offers enhanced alternatives to earlier voltage supervisory circuits. This device is designed to monitor the VDD voltage level and initiate a reset signal when the supply voltage drops below a factory-programmed falling threshold voltage. The TLV809EA29DCKR is known for its low quiescent current, high accuracy, and wide temperature range, making it ideal for low-power and portable applications.
Key Specifications
| Parameter | Description |
|---|---|
| Package | SC-70 (DCK), 3 pins |
| Operating Temperature Range | -40°C to 125°C |
| Supply Current (IDD) | 250 nA (typical), 1 µA (maximum for VDD = 3.3 V) |
| Output Topology | Push-pull, active-low |
| Under Voltage Detection | High accuracy: ±0.5% (typical) |
| Threshold Voltages | 1.7 V, 1.8 V, 1.9 V, 2.25 V, 2.4 V, 2.64 V, 2.93 V, 3.08 V, 3.3 V, 4.2 V, 4.38 V, 4.55 V, 4.63 V |
| Fixed Time Delay | 40 µs, 10 ms, 50 ms, 100 ms, 200 ms, 400 ms |
| Glitch Immunity | Integrated to ignore fast transients on the VDD pin |
| Power-On Reset (V POR) | Defined output logic state for supply voltages down to 0.7 V |
Key Features
- Low quiescent current (250 nA typical, 1 µA maximum for VDD = 3.3 V)
- High accuracy under voltage detection (±0.5% typical)
- Wide temperature range (-40°C to 125°C)
- Fixed time delay options (40 µs, 10 ms, 50 ms, 100 ms, 200 ms, 400 ms)
- Integrated glitch immunity to ignore fast transients on the VDD pin
- Push-pull, active-low output topology
- Pin-to-pin compatible with MAX803/809/810, APX803/809/810, and other similar devices
Applications
The TLV809EA29DCKR is suitable for various low-power and portable applications, including:
- Battery-powered devices
- Portable electronics
- Industrial control systems
- Automotive systems
- Medical devices
Q & A
- What is the primary function of the TLV809EA29DCKR?
The primary function is to monitor the VDD voltage level and initiate a reset signal when the supply voltage drops below a factory-programmed threshold. - What is the typical quiescent current of the TLV809EA29DCKR?
The typical quiescent current is 250 nA. - What are the available threshold voltages for the TLV809EA29DCKR?
The available threshold voltages include 1.7 V, 1.8 V, 1.9 V, 2.25 V, 2.4 V, 2.64 V, 2.93 V, 3.08 V, 3.3 V, 4.2 V, 4.38 V, 4.55 V, and 4.63 V. - What is the output topology of the TLV809EA29DCKR?
The output topology is push-pull, active-low. - What is the operating temperature range of the TLV809EA29DCKR?
The operating temperature range is -40°C to 125°C. - Does the TLV809EA29DCKR have integrated glitch immunity?
Yes, it has integrated glitch immunity to ignore fast transients on the VDD pin. - What are the fixed time delay options for the TLV809EA29DCKR?
The fixed time delay options include 40 µs, 10 ms, 50 ms, 100 ms, 200 ms, and 400 ms. - Is the TLV809EA29DCKR pin-to-pin compatible with other devices?
Yes, it is pin-to-pin compatible with MAX803/809/810, APX803/809/810, and other similar devices. - What is the power-on reset (V POR) specification for the TLV809EA29DCKR?
The device has defined output logic state for supply voltages down to 0.7 V. - What types of applications is the TLV809EA29DCKR suitable for?
The TLV809EA29DCKR is suitable for low-power and portable applications such as battery-powered devices, portable electronics, industrial control systems, automotive systems, and medical devices.
