Overview
The TLV4031R2YKAR is a low-power, high-accuracy comparator from Texas Instruments, part of the TLV40x1 family. This device is designed for compact, low-current, precision voltage detection applications. It features a wide supply voltage range of 1.6 V to 5.5 V, making it suitable for various power-conscious systems. The TLV4031R2YKAR is available in an ultra-small 0.73 mm × 0.73 mm DSBGA package, ideal for space-critical designs such as portable or battery-powered electronics.
The device includes precision references of 0.2 V, 0.5 V, and 1.2 V, with a fixed threshold option of 3.2 V. It offers low quiescent current of 2 µA and fast propagation delays, ensuring quick response to changes in operating conditions. The TLV4031R2YKAR is particularly useful in harsh, noisy environments where stable output operation is crucial.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VS) | 1.6 | 5.5 | V | ||
| Input Voltage Range (IN) | TA = -40°C to +125°C | V– | 5.5 | V | |
| Positive-going Input Threshold Voltage (VIT+) | VS = 1.8 V and 5 V, TA = 25°C | 0.197 | 0.2 | 0.203 | V |
| Negative-going Input Threshold Voltage (VIT-) | VS = 1.8 V and 5 V, TA = 25°C | 0.174 | 0.18 | 0.186 | V |
| Input Hysteresis Voltage (VHYS) | VS = 1.8 V and 5 V, TA = 25°C | 20 | mV | ||
| Quiescent Current (IQ) | No load, TA = 25°C, Output Low, VS = 1.8 V | 2 | 3.5 | 5 | µA |
| Propagation Delay (tPHL, tPLH) | Midpoint of input to midpoint of output | 360 | ns | ||
| Output Type | Open-Drain | ||||
| Temperature Range | -40 | 125 | °C | ||
| Package | 0.73 mm × 0.73 mm DSBGA (4-bump) |
Key Features
- Wide supply voltage range: 1.6 V to 5.5 V
- Precision references: 0.2 V, 0.5 V, and 1.2 V
- Fixed threshold of 3.2 V
- Reference accuracy: 0.5% at 25°C, 1% over temperature
- Low quiescent current: 2 µA
- Propagation delay: 360 ns
- Push-pull and open-drain output options
- Known startup conditions
- Non-inverting and inverting input options
- Precision hysteresis
- Temperature range: –40°C to +125°C
- Ultra-small package: 0.73 mm × 0.73 mm DSBGA (4-bump) and SOT-23 (5-pin)
Applications
- Self-diagnostics
- Lithium ion battery monitoring
- Battery management and protection
- Current and voltage sensing
- Analog front end
- Power management
- Point of load regulators
- DC/DC and AC/DC power supplies
- System control and monitoring
Q & A
- What is the supply voltage range of the TLV4031R2YKAR?
The supply voltage range is from 1.6 V to 5.5 V.
- What are the precision reference voltages available for the TLV4031R2YKAR?
The precision reference voltages are 0.2 V, 0.5 V, and 1.2 V.
- What is the quiescent current of the TLV4031R2YKAR?
The quiescent current is 2 µA.
- What is the propagation delay of the TLV4031R2YKAR?
The propagation delay is 360 ns.
- What output types are available for the TLV4031R2YKAR?
The TLV4031R2YKAR features an open-drain output.
- What is the temperature range of the TLV4031R2YKAR?
The temperature range is from –40°C to +125°C.
- What packages are available for the TLV4031R2YKAR?
The device is available in a 0.73 mm × 0.73 mm DSBGA (4-bump) package and a SOT-23 (5-pin) package.
- What are some common applications of the TLV4031R2YKAR?
Common applications include self-diagnostics, lithium ion battery monitoring, battery management and protection, current and voltage sensing, and power management.
- How accurate are the reference voltages of the TLV4031R2YKAR?
The reference accuracy is 0.5% at 25°C and 1% over temperature.
- Does the TLV4031R2YKAR have precision hysteresis?
Yes, the device features precision hysteresis to reject brief glitches on the input.
