TLV9020L_V01中文资料德州仪器数据手册PDF规格书

1 Features

• Output latch with falling-edge triggered clear

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

• Selectable start-up state:

– Unlatched on power-up (L1 option)

– Latched on power-up (L2 option)

• Supply range: 1.65V to 5.5V

• Precision input offset voltage: 300μV

• Rail-to-rail inputs with fault tolerance

• Typical propagation delay: 110ns

• 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 feature 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 safety-critical

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 feature 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 ORing 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.