TLV7031 datasheet(18/69 Pages) TI2

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6.4.1 Inputs

The TLV703x and TLV704x input common-mode extends from VEE to 100mV above VCC. The differential input

voltage (VID) can be any voltage within these limits. No phase inversion of the comparator output occurs when

the input pins exceed VCC and VEE.

The input of TLV703x and TLV704x is fault tolerant and maintains the same high input impedance when VCC is

unpowered or ramping up. The input can be safely driven up to the specified maximum voltage (7V) with VCC =

0V. The VCC is isolated from the input and maintains the high impedance even when a higher voltage is applied

to the input.

The input bias current is typically 1pA for input voltages between VCC and VEE. The comparator inputs are

protected from voltages below VEE by internal diodes connected to VEE. As the input voltage goes under VEE,

the protection diodes become forward biased and begin to conduct causing the input bias current to increase

exponentially. Input bias current typically doubles every 10°C temperature increases.

6.4.2 Internal Hysteresis

The device hysteresis transfer curve is shown in Figure 6-1. This curve is a function of three components: VTH,

VOS, and VHYST:

• VTH is the actual set voltage or threshold trip voltage.

• VOS is the internal offset voltage between VIN+ and VIN–. This voltage is added to VTH to form the actual trip

point at which the comparator must respond to change output states.

• VHYST is the internal hysteresis (or trip window) that is designed to reduce comparator sensitivity to noise

(7mV for both TLV703x and TLV704x).

+ V

HYST

)

/ 2

+ V

HYST

)

/ 2

Figure 6-1. Hysteresis Transfer Curve

6.4.3 Output

The TLV703x features a push-pull output stage eliminating the need for an external pullup resistor.

The TLV704x features an open-drain output stage enabling the output logic levels to be pulled up to an external

source up to 6.5V independent of the supply voltage.

TLV7031, TLV7032, TLV7041, TLV7042, TLV7034, TLV7044

SLVSE13J – SEPTEMBER 2017 – REVISED NOVEMBER 2024

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TLV7031 Datasheet(PDF) 18 Page - Texas Instruments