MAX16171
PRODUCTIONIdeal Diode Controller with Reverse-Current Protection
Fastest Reverse Polarity Protection IC to Efficiently Protect Your Automotive System
- Part Models
- 4
- 1ku List Price
- Starting From $1.30
Overview
- -42V to +76V Protection Range
- Relaxes TVS Diodes Requirements
- 4V to 57V Operating Range
- Accommodates Wide Automotive Supply Rails
- 9V Gate Drive Voltage with Respect to SRC
- Reduces MOSFET Power Dissipation
- Enable Input
- Provides On-the-Fly System Control
- 1µA Shutdown Current
- Extends Battery Life
- 600ns Reverse-Current Blocking Time with 10mV Overdrive
- Extends System Operation Time During Power Interruption
- -40°C to +125°C Automotive Temperature Range
- 2mm x 3mm, Side-Wettable TDFN Package
The MAX16171 is an ideal diode controller that protects the load against damaging automotive transients down to -42V and blocks reverse-current flow within 600ns. The MAX16171 operates over a wide supply voltage range of 4V to 57V and withstands input transients up to 76V. In light load applications, the device regulates the voltage drop across the external MOSFET to 20mV, allowing smooth, ring-free operation. At heavy load, the charge pump drives the gate of the external MOSFET into an enhanced mode of operation and significantly improves efficiency and power dissipation compared to traditionally used Schottky diodes.
The MAX16171 consumes only 1μA of current during shutdown mode (VEN = GND) to extend battery life while providing standby power to the load through the body diode of the external MOSFET. An internal 2.5MΩ resistor between GATE and SRC keeps the external MOSFET off when the input voltage drops below ground.
The MAX16171 is available in a tiny 2mm x 3mm x 0.75mm, 8-pin TDFN package with side-wettable flanks and operates over the -40°C to +125°C automotive temperature range.
Applications
- Automotive Power Systems
- Network Telecom Power Systems
- RAID Systems
- Redundant Power Supplies
- Servers
Documentation
Data Sheet 1
Video 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX16171ATA+ | LFCSP | ||
| MAX16171ATA+T | LFCSP | ||
| MAX16171ATA/VY+ | LFCSP | ||
| MAX16171ATA/VY+T | LFCSP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 20, 2026 - 2571D PIN/ERRATA |
||
| MAX16171ATA+ | PRODUCTION | |
| MAX16171ATA+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Ideal Diodes and PowerPath Controllers 1 | ||
| MAX16141 | PRODUCTION | 3.5V to 36V Ideal Diode Controllers with Voltage and Current Circuit Breaker |
| Overvoltage & Overcurrent Protectors 1 | ||
| MAX16141A | PRODUCTION | 3.5V to 36V Ideal Diode Controllers with Voltage and Current Circuit Breaker |
Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- MAX16171
SPICE Model 1
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Evaluation Kits
Evaluation Kit for the MAX16171