MAX17608 datasheet(1/21 Pages) MAXIM

Part #	MAX17608

Description	4.5V to 60V, 1A Current Limiter with OV, UV, and Reverse Protection

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Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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General Description

The Olympus series of ICs are the industry’s smallest

and robust integrated system protection solutions. The

MAX17608/MAX17609/MAX17610 adjustable overvoltage

and overcurrent protection devices are ideal to protect

systems against positive and negative input voltage faults up

to +60V and -65V, and feature low 260mΩ (typ) RON FETs.

The adjustable input overvoltage protection range is 5.5V

to 60V and the adjustable input undervoltage protection

range is 4.5V to 59V. The input overvoltage-lockout

(OVLO) and undervoltage-lockout (UVLO) thresholds are

set using external resistors. Additionally, the devices offer

an internal input undervoltage threshold at 4V (typ).

The devices feature programmable current-limit protection

up to 1A; hence, controlling the inrush current at startup

while charging high capacitances at the output. Current-

limit threshold is programmed by connecting a resistor from

the SETI pin to GND. When the device current reaches

the programmed threshold, the device prevents further

increases in current by modulating the FET resistance. The

devices can be programmed to behave in three different

ways under current-limit condition: Autoretry, Continous, or

Latch-off modes. The voltage appearing on the SETI pin is

proportional to the instantaneous current flowing through

the device and is read by an ADC.

MAX17608 and MAX17610 block current flowing in the

reverse direction (i.e., from OUT to IN) whereas MAX17609

allows current flow in the reverse direction. The devices

feature thermal shutdown protection against excessive

power dissipation.

The devices are available in a small, 12-pin (3mm x 3mm)

TDFN-EP package. The devices operate over the -40°C to

+125°C extended temperature range.

Applications

● Sensor Systems

● Condition Monitoring

● Factory Sensors

● Process Instrumentation

● Weighing and Batching Systems

● Industrial Applications such as PLC, Network-Control

Modules, Battery-Operated Modules

Ordering Information appears at end of data sheet.

19-100228; Rev 1; 6/18

Benefits and Features

● Robust Protection Reduces System Downtime

• Wide Input-Supply Range: +4.5V to +60V

• Hot Plug-in Tolerant Without TVS up to 35V Input

Supply

• Negative Input Tolerance to -65V

• Low RON 260mΩ (typ)

• Reverse Current-Blocking Protection

• Thermal Overload Protection

• Extended -40°C to +125°C Temperature Range

• MAX17608 Enables OV, UV, and Reverse Voltage

Protection

• MAX17609 Enables OV and UV Protection

• MAX17610 Enables Reverse Voltage Protection

● Flexible Design Options Enable Reuse and Less

Requalification

• Adjustable OVLO and UVLO Thresholds

• Programmable Forward-Current Limit: 0.1A to 0.2A

with ±5% Accuracy and 0.2A to 1.0A with ±3%

Accuracy Over Full Temperature Range

• Programmable Overcurrent Fault Response:

Autoretry, Continuous, and Latch-Off Modes

• Smooth Current Transitions

● Saves Board Space and Reduces External BOM

Count

• 12-Pin, 3mm x 3mm, TDFN-EP Package

• Integrated FETs

MAX17608/MAX17609/

MAX17610

4.5V to 60V, 1A Current Limiter

with OV, UV, and Reverse Protection

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