1 Features

• Output latch with falling-edge triggered clear

• Power-on Reset (POR) for known start-up

• Selectable Start-up State:

– Un-Latched on Power-up (L1 option)

– Latched on Power-up (L2 option)

• 1.65V to 5.5V supply range

• Precision input offset voltage: 300μV

• Rail-to-Rail inputs with fault tolerance

• 110ns typical propagation delay

• Low quiescent current: 22μA per channel

• Low input bias current: 5pA

• Open-drain output option (TLV902xL )

• Push-pull output option (TLV903xL )

• Full -40°C to +125°C temperature range

• 2kV ESD protection

2 Applications

• Appliance Power Module

• AC Drive Control

• Power Conversion Systems

• Battery Backup Unit

• Battery Test Equipment

3 Description

The TLV902xL and TLV903xL are a family of

single and dual channel latching comparators. The

family also offers low input offset voltage, power

on reset (POR), and fault-tolerant rail-to-rail inputs.

These devices have an excellent speed-to-power

combination with a propagation delay of 110ns with

a quiescent supply current of only 22μA per channel.

The unique feature of the TLV90xxL is the output

latching capability. The output latches upon the first

threshold crossing, allowing capture of an event or

error condition without the full attention of a system

controller. This allows events to be captured at start

up while the system controller is still initializing or

busy with other tasks. The falling-edge triggered

clear input allows system controller to reset the latch

after performing any needed tasks and meets safetycritical

requirements. The L1 and L2 options define

power-up latching behavior.

These comparators also feature fault-tolerant inputs

that can go up to 6V without damage with no

output phase inversion. This makes this family

of comparators designed for precision voltage

monitoring in harsh, noisy environments.

The TLV902xL have an open-drain output that

can be pulled-up below or beyond the supply

voltage, designed for OR'ing multiple outputs or level

translation. Latching occurs on the high to low output

transition.

The TLV903xL have a push-pull output stage capable

of sinking and sourcing up to 85mA to drive a

capacitive load such as a MOSFET gate. Latching

occurs on the low to high output transition.

The family is specified for the Industrial temperature

range of -40°C to +125°C and are available in

standard leaded and leadless packages.