1 Features

1• Post Production Configuration and Calibration

• Programmable Decision Thresholds

• Programmable Hysteresis

• Flexible Overload Protection

• Digital Temperature Compensation

• Integrated LED driver

• Small Form Factor, Supports 4mm Sensors

(DSBGA Package)

• Low Power Consumption

• Integrated Voltage Regulator

• 3-Wire Capability

• Supports NPN and PNP Modes

• Normally Open (NO) and Normally Closed (NC)

Supported

• 16-bit Resolution Threshold Setting

2 Applications

• Industrial Proximity Detection

• Industrial Production Lines

• Industrial Automation

3 Description

The LMP91300 is a complete analog front end (AFE)

optimized for use in industrial inductive proximity sensors. The LMP91300 directly converts the RP of

the external LC tank into a digital value.

Post-manufacturing configuration and calibration is

fully supported. The temperature dependence of the

sensor is digitally compensated, using an external

temperature sensor. The LMP91300 provides

programmable thresholds, programmable temperature compensation and programmable

oscillation frequency range. Due to its

programmability, the LMP91300 can be used with a

wide variety of external inductors and its detection thresholds can be adjusted to the desired detection

distances.

An internal voltage regulator allows the device to

operate with a supply from 6.5V to 40V. The output

can be programmed to drive an external transistor in

either NPN or PNP mode.

Available in 4mm × 5mm 24-terminal WQFN and

2.05mm × 2.67mm 20-terminal DSBGA packages,

the LMP91300 operates from -40°C to +125°C.