Texas Instruments TLV40x1 Low-Power Comparators

Texas Instruments TLV40x1 Low-Power Comparators are low-power, high-accuracy comparators with precision thresholds and a propagation delay of 360ns. These comparators are available in an ultra-small, DSBGA package measuring 0.73mm×0.73mm. This feature makes the TLV40x1 applicable for space-critical designs like portable or battery-powered electronics where low-power and fast response to changes in operating conditions are required. The factory-trimmed switching thresholds and precision hysteresis combine to make the TLV40x1 appropriate for voltage and current monitoring in harsh, noisy environments. These devices are ideal where slow-moving input signals must be converted into clean digital outputs. Similarly, brief input glitches are rejected, ensuring stable output operation without false triggering.

The Texas Instruments TLV40x1R1/2 are available in multiple configurations, allowing system designers to achieve the desired output response. For example, the TLV4021 and TLV4031 feature an open-drain output stage, while the TLV4041 and TLV4051 feature a push-pull output stage. Furthermore, the TLV4021 and TLV4041 offer a non-inverting input, while the TLV4031 and TLV4051 have an inverting input.

Features

  • 1.6V to 5.5V wide supply voltage range 
  • Adjustable thresholds down to 0.2V and 1.2V
  • Fixed threshold of 3.2V
  • High threshold accuracy
    • 0.5% at 25°C
    • 1% over temperature
  • 2µA low quiescent current 
  • 360ns propagation delay 
  • Push-pull and open-drain output options
  • Known startup conditions
  • Non-inverting and inverting input options
  • Precision hysteresis
  • –40°C to +125°C temperature range 
  • Packages
    • 0.73mm×0.73mm DSBGA (4-bump)

Applications

  • Self-diagnostics
  • Lithium-ion battery monitoring
  • Battery management and protection
  • Current and voltage sensing
  • Analog front end
  • Power management
  • Non-isolated power supply
  • Point of load regulators
  • DC/DC power supply
  • AC/DC power supply
  • System control and monitoring

Functional Block Diagrams

Block Diagram - Texas Instruments TLV40x1 Low-Power Comparators
Published: 2019-07-19 | Updated: 2023-10-02