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TLV6003

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SLOS981 – OCTOBER 2019

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7.3 Feature Description

7.3.1 Reverse-Battery Protection

The TLV6003 is protected against reverse-battery voltage up to 18 V. When subjected to reverse-battery

conditions, the supply current is typically 50 nA at 25°C (inputs grounded and outputs open). This current is

determined by the leakage of internal Schottky diodes, and therefore increases as the ambient temperature

increases.

When subjected to reverse-battery conditions, and negative voltages are applied to the inputs or outputs, the

input ESD structure conducts current; limit this current to less than 10 mA. If the inputs or outputs are referred to

ground rather than midrail, no extra precautions are required.

7.3.2 Common-Mode Input Range

The TLV6003 has rail-to-rail inputs and outputs. For common-mode inputs from –0.1 V to VCC – 0.8 V, a PNP

differential pair provides the gain.

For inputs between VCC – 0.8 V and VCC, two NPN emitter followers buffering a second PNP differential pair

provide the gain.

This special combination of a NPN and PNP differential pair enables the inputs to be taken 5 V greater than VCC.

As the inputs rise to greater than VCC, the NPNs change from functioning as transistors to functioning as diodes.

This change leads to an increase in input bias current. The second PNP differential pair continues to function

normally as the inputs exceed VCC.

The TLV6003 has a negative common-mode input voltage range that can fall to less than VGND by 100 mV. If the

inputs are taken to less than VGND – 0.1, reduced open-loop gain will be observed.

7.4 Device Functional Modes

The TLV6003 has a single functional mode and is operational when the power-supply voltage is greater than 2.5

V. The maximum specified power-supply voltage for the TLV6003 is 16 V.