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MAX17563

Adjustable Overvoltage and Overcurrent Protectors with High Accuracy

Industry's Most Integrated OCP and OVP Solution with More Robust Reverse Current Blocking Capability

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Overview

Description

The MAX17561/MAX17562/MAX17563 adjustable overvoltage and overcurrent-protection devices are ideal to protect systems against positive and negative input voltage faults up to ±40V and feature low 100mΩ (typ) R_ON FETs.

The adjustable overvoltage protection range is between 6V and 36V, while the adjustable undervoltage protection range is between 4.5V and 24V. The overvoltage-lockout (OVLO) and undervoltage-lockout (UVLO) thresholds are set using optional external resistors. The factory-preset internal OVLO threshold is 33V (typ) and the preset internal UVLO threshold is 19.2V (typ).

The ICs also feature programmable current-limit protection up to 4.2A. Once current reaches the threshold, the MAX17561 turns off after the 20.7ms (typ) blanking time and stays off during the retry period. The MAX17562 latches off after the blanking time, and the MAX17563 limits the current continuously. In addition, these devices feature reverse current and thermal-shutdown protection. The ICs are available in a small 14-pin TSSOP (5mm x 6.5mm) package and are specified over the extended -40°C to +125°C temperature range.

How to Add Overvoltage and Overcurrent Protection Using the MAX17561—Part 1

How to Add Overvoltage and Overcurrent Protection Using the MAX17561—Part 2

MAX17561, MAX17562, MAX17563: Functional Diagram

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Key Features

Industrial Power Protection Increases Robustness

Wide Input Supply Range: +4.5V to +36V
Negative Input Tolerance to -36V
Low R_ON 100mΩ (typ)
Reverse Current Flow Control Input
Thermal Overload Protection
Extended -40°C to +125°C Temperature Range

Flexible Design Options Eases Designs

Adjustable OVLO and UVLO Thresholds
Programmable Forward-Current Limit: 0.7A to 4.2A with ±15% Accuracy
Dual Enable Inputs: EN and High Voltage Active-Low HVEN

Saves Space

14-Pin, 5mm x 6.5mm, TSSOP Package

Applications/Uses

Battery-Powered Applications
Consumer Electronics
Industrial Equipment
Marine Equipment

Parametric Specs

Part Number

Channels

V_IN
(V)

Internal Pwr. MOSFETs

R_ON
(mΩ)

Current Limit
(A)

Current Limit Accuracy
(%)

Fault Response

Reverse Current Protect.

Fault Indicator

Oper. Temp.
(°C)

Package/Pins

Budgetary
Price

min

max

typ

min

max

See Notes

MAX17561

4.5

NMOS+PMOS

100

0.7

4.2

Auto Retry

Yes

-40 to +125

TSSOP/14

$3.41 @1k

MAX17562

Latchoff

TSSOP/14

MAX17563

Continuous

TSSOP/14

See All Overvoltage/Overcurrent Protectors with Internal MOSFETs (26)

Pricing Notes:

This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Design Resources

MAX17561EVKIT: Evaluation Kit for the MAX17561/MAX17562 and MAX17563

Technical Documents

App Note 6142 Industrial Internet of Things (IIoT) and Its Impact on the Design of Automation Systems

Quality and Environmental Data

Request Reliability Report for: MAX17563
Lead-Free Package Tin (Sn) Whisker Reports

Quality And Environmental

Device	Fab Process	Technology	Sample size	Rejects	FIT at 25°C	FIT at 55°C

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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