MAX14832：One-Time Programmable Industrial Sensor Output Driver

Industry's First 100mA OTP Output Driver Simplifies Production

The MAX14832 is a 24V, 100mA driver for industrial binary sensors. The device is configurable through one-time programming (OTP) and integrates the common high-voltage circuitry needed for industrial binary sensors into a single-device solution. Integrated transient protection meets IEC60255-5 surges up to ±1.3kV. The output of the device can be configured for high-side (pnp), low-side (npn), or push-pull operation through OTP. Additionally, the device features an OTP option for the internal low-dropout (LDO) regulator, allowing the user to select a 3.3V or 5V output, as well as an option to configure the device for sensors with normally open (NO) or normally closed (NC) logic. Also configurable during OTP is the timing of the power-on reset (POR) delay. OTP programming options are performed with the sensor interface pins (VCC, DO, and GND) using the 1-Wire® interface protocol. The MAX14832 operates from a wide 4.75V to 34V supply and is available in a 10-pin TDFN-EP (3mm x 3mm) package and 9-bump wafer-level package (WLP) (1.6mm x 2.0mm). The device functions over the extended -40°C to +85°C temperature range.

Key Features

High Configurability
- OTP Configurable Through Sensor Interface Pins
- Programmable High-Side (pnp), Low-Side (npn), or Push-Pull Driver
- LDO with Selectable 3.3V or 5V Output Voltage
- Optional Pulse Stretching
- Programmable POR Delay
- Programmable NO/NC Logic
Robust Design
- Reverse-Polarity Protection
- Hot-Plug Protection
- Short-Circuit Protection on DO
- Surge Protection
  - ±1.3kV/500Ω IEC 60255-5
- ESD Protection
  - ±12kV IEC61000-4-2 Air-Gap Discharge Method
  - ±8kV IEC61000-4-2 Contact Discharge Method
Glitch Filtering on Logic Input
Accelerated Demagnetization of Inductive Load
Overtemperature Protection
Saves Space on Board
- 10-Pin TDFN-EP Package
- Ultra-Small (1.6mm x 2.0mm) 9-Bump WLP
- Dual, Integrated 4.5mA LED Drivers

MAX14832: Functional Diagram

Applications/Uses

Capacitive and Inductive Sensors
Industrial Binary Sensors
Proximity Switches

DataSheet

title	Download file
MAX14832 Data Sheet	MAX14832.pdf

Parametrics

Part Number	Functions	V_CC (V)	V_CC (V)	DO (mA)	Logic-Level Supply Voltage (V)	Integrated Power	Protection Features	Package/Pins	Oper. Temp. (°C)	Budgetary Price
Part Number	Functions	min	max	typ	Logic-Level Supply Voltage (V)	Integrated Power	Protection Features	Package/Pins	Oper. Temp. (°C)	See Notes
MAX14832	Binary Driver	4.75	34	100	3.3 5	3.3V LDO 5V LDO	High ESD High Temp Warning and Shutdown Reverse Polarity Short Circuit	TDFN-EP/10	-40 to +85	$1.97 @1k