1 Features
• Low supply current: 440nA per channel
• Wide supply range: 1.8V to 40V
• Over-the-rail inputs: common-mode range extends
40V above (V-) independent of (V+)
• Fail-safe: high impedance inputs with no supply
• Power-on-reset provides a known startup condition
• No phase reversal for overdriven inputs
• Reverse battery protection up to 40V
• Push-pull output option (TLV185x)
• Open-drain output option (TLV186x)
• Temperature range: -40°C to +125°C

2 Applications
• Mobile phones & tablets
• Headsets/headphones & earbuds
• PC & notebooks
• Gas detector
• Smoke & heat detector
• Motion Detector
• Gas meter
• Servo drive position sensor

3 Description
The TLV185x and TLV186x are a family of
nanopower, 40V comparators with single, dual and
quad channel options. The family offers fail-safe (FS)
inputs with push-pull and open-drain output options.
These features coupled with nanopower operation
over the wide supply range of 1.8V to 40V make this
family well-suited for house-keeping functions such
as voltage and temperature monitoring in low-power,
always-on systems.
All devices include a Power-On Reset (POR) feature
that makes sure that the output is in a known
state until the minimum supply voltage has been
reached before the output responds to the inputs, thus
preventing false outputs during system power-up and
power-down.
The inputs have over-the-rail capability where both
inputs can exceed the supply voltage up to 40V and
still operate properly. This makes the comparators
well suited for both high and low supply voltage
systems without limiting the range of input voltages
that can be compared. Likewise, the internal
reverse battery protection feature prevents damage
to the comparator in the event of improper battery
installation to the supply pins.
The TLV185x comparators have a push-pull output
stage where as the TLV186x comparators have an
open-drain output stage, making it appropriate for
level translation.