Texas Instruments TLV1805/TLV1805-Q1 High Voltage Comparator

Texas Instruments TLV1805/TLV1805-Q1 High Voltage Comparator offers a unique combination of wide supply range, push-pull output, rail-to-rail inputs, low quiescent current, shutdown capability, and fast output response. All these features make this comparator well-suited for applications that require sensing at the positive or negative voltage rails. These applications include reverse current protection for a smart diode controller, overcurrent sensing, and overvoltage protection circuits where the push-pull output stage is used to drive the gate of a p-channel or n-channel MOSFET switch. The Texas Instruments TLV1805-Q1 devices are AEC-Q100 qualified for automotive applications.

Features

  • 3.3V to 40V supply range
  • 135µA low quiescent current 
  • High peak current push-pull output
  • Rail-to-rail inputs with phase reversal protection
  • 14mV built-in hysteresis 
  • 250ns propagation delay
  • 500µV low input offset voltage 
  • Shutdown with high-Z output
  • Power-on reset (POR)
  • SOT-23-6 package

Applications

  • Reverse current protection smart diode controller
  • Overvoltage, undervoltage, and overcurrent detection
  • OR-ing MOSFET controller
  • MOSFET gate driver
  • High voltage oscillators
  • System monitoring for
    • Infotainment and cluster
    • PLC's
    • Servers
    • Motor protection and control

Functional Block Diagram

Block Diagram - Texas Instruments TLV1805/TLV1805-Q1 High Voltage Comparator
Publié le: 2019-03-12 | Mis à jour le: 2023-08-02