1 Features
1• 3.3 V to 40 V supply range
• Low quiescent current: 135 μA
• High peak current push-pull output
• Rail-to-rail inputs with phase reversal protection
• Built-In hysteresis: 14mV
• 250ns propagation delay
• Low input offset voltage: 500 μV
• Shutdown with high-z output
• Power-On Reset (POR)
• SOT-23-6 package

2 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 & cluster
– PLC's
– Servers
– Motor protection & control

3 Description
The TLV1805 high voltage comparator offers the
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 such as 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 high peak current push-pull output stage, which
is unique for high-voltage comparators, offers the
advantage of allowing the output to actively drive the
load to either supply rail with a fast edge rate. This is
especially valuable in applications where a MOSFET
gate needs to be driven high or low quickly in order to
connect or disconnect a host from an unexpected
high voltage supply. Additional features such as low
input offset voltage, low input bias currents and High-
Z shutdown make the TLV1805 flexible enough to
handle a broad range of applications. Power-On reset
prevents false outputs at power-up.
The TLV1805 is in a 6-pin SOT-23 package and is
specified for operation across the extended industrial
temperature range of –40°C to +125°C.