1 Features
• Low supply current: 440 nA per channel
• Wide supply range: 1.8 V to 40 V
• Over-the-rail inputs: common-mode range extends
40 V above (V-) independent of (V+)
• Fail-safe inputs: high impedance inputs with no
supply
• Internal power-on-reset provides a known startup
condition
• No phase reversal for overdriven inputs
• Reverse battery protection up to 40 V
• 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, 40 Volt 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 1.8 V to 40 V 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 ensures 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 40
V 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.