Overview
The TLV4021R1YKAR 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 TLV4021R1YKAR 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.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VS) | 1.6 | - | 5.5 | V |
| Reference Voltage (VIT+) | 1.188 | 1.2 | 1.212 | V |
| Input Hysteresis Voltage (VHYS) | - | 20 | - | mV |
| Quiescent Current (IQ) | 2 | 3.5 | 5 | µA |
| Propagation Delay (tPHL/tPLH) | 360 | - | - | ns |
| Output Type | - | Open-Drain | - | - |
| Input Configuration | - | Non-Inverting | - | - |
| Temperature Range | -40 | - | 125 | °C |
| Package | - | 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 (for specific models)
- 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
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 TLV4021R1YKAR? The supply voltage range is 1.6 V to 5.5 V.
- What are the precision reference voltages available for this comparator? The precision reference voltages are 0.2 V, 0.5 V, and 1.2 V.
- What is the quiescent current of the TLV4021R1YKAR? The quiescent current is 2 µA.
- What is the propagation delay of the TLV4021R1YKAR? The propagation delay is 360 ns.
- What output types are available for this comparator? The TLV4021R1YKAR features an open-drain output.
- What is the input configuration of the TLV4021R1YKAR? The input configuration is non-inverting.
- What is the temperature range of the TLV4021R1YKAR? The temperature range is –40°C to +125°C.
- In what package is the TLV4021R1YKAR available? It is available in a 0.73 mm × 0.73 mm DSBGA (4-bump) package.
- What are some common applications of the TLV4021R1YKAR? Common applications include self-diagnostics, lithium ion battery monitoring, battery management, and power management.
- How accurate are the reference voltages of the TLV4021R1YKAR? The reference accuracy is 0.5% at 25°C and 1% over temperature.
- Does the TLV4021R1YKAR have precision hysteresis? Yes, it features precision hysteresis to reject brief glitches on the input.
