MAX22520GWP+T

Overview

The MAX22520GWP+T is a 24V line driver for industrial sensors featuring a one-time programmable (OTP) analog interface. It operates from a 4.75V/8V to 36V supply and supports 3.3V or 5V linear regulator outputs. The device includes a configurable driver output (DO) with 100mA or 200mA current limits, an integrated comparator with programmable thresholds, a PWM oscillator, and a digital potentiometer. Configuration is performed via the 1-Wire protocol using VCC, DO, and GND pins. It provides robust protection against hot-plug events, reverse polarity, short circuits, and ESD strikes.

Feature Summary

• Configurable driver output supporting high-side (PNP), low-side (NPN), or push-pull configurations
• Integrated linear regulator providing programmable 3.3V or 5V low-noise supply
• Robust protection features including reverse polarity, short circuit, and thermal shutdown
• One-time programmable (OTP) configuration via standard three-wire interface

Applications

• Industrial binary sensors
• Proximity switches
• Inductive and magnetic sensors

Procurement Notes

Verify the specific ordering suffix matches the required package and RoHS status. Confirm availability through authorized distributors as stock levels fluctuate. Ensure the component meets the intended environmental temperature range requirements before finalizing procurement orders.

Selection Notes

Select this component when designing compact industrial sensor interfaces requiring on-board signal conditioning. Verify that the required driver current limit (100mA or 200mA) aligns with the load specifications. Ensure the application environment supports the specified operating temperature range of -40°C to +105°C.

Part Context

This part belongs to the MAX22520 family of OTP industrial sensor output drivers. It is designed to replace discrete solution designs by integrating driver, regulator, and calibration components into a single ultra-small WLP package. The series focuses on simplifying end-of-line programming and reducing board space in harsh industrial environments.

Replacement Considerations

Direct pin-to-pin replacements are not explicitly listed in the provided documentation. Evaluate alternative Maxim Integrated sensor drivers based on package compatibility and OTP interface support if substitution is necessary.

FAQ

How is the device configured?

Configuration is performed using the 1-Wire protocol via the VCC, DO, and GND pins, allowing permanent programming of settings such as driver state, current limit, and regulator voltage.

What protection features are included?

The device includes reverse polarity protection, short circuit protection, thermal shutdown, and IEC 61000-4-2 ESD protection rated at ±6kV contact discharge.

Can the device drive inductive loads?

Yes, the internal clamps allow for fast demagnetization of inductive loads up to 1.2H with currents up to 200mA and supply voltages up to +36V.