Product Highlights

• Robust Protection Reduces System Downtime

• Wide Input Supply Range: +3V to +80V

(without Reverse Current Protection)

• Wide Input Supply Range: +3V to +75V

(with Reverse Current Protection)

• ±3% Accurate Programmable Current Limit

between 3A to 7A across Full Temperature

Range

• ±4% Accurate Programmable Current Limit

between 2A to 3A across Full Temperature

Range

• ±7% Accurate Programmable Current Limit

between 0.7A to 2A across Full Temperature

Range

• ±6% Accurate Power Limit at 100W, 24V for

Class 2 Applications

• Input-Voltage Reverse-Polarity Protection

(with External nFET)

• Dual Stage Reverse Current Protection

(with External nFET) with Fast 100ns Response

Time

• Low RON Internal nFET (20mΩ typ)

• Output-Voltage Reverse-Polarity Tolerant

• Loss of Ground Protection

• 200% Short Term Overload capability

• Programmable Overvoltage Surge Protection

(MAX17617A)

• Flexible Design to Maximize Reuse and Minimize

Requalification

• Adjustable UVLO and OVLO/OVFB Thresholds

• ±2% Accurate Bandwidth Current Monitoring

Read-Out, IMON (3A to 7A, up to +85ºC)

• Programmable Startup Inrush Current Limit

• Programmable Current Limit Fault Response:

Continuous, Autoretry, and Latch-off Modes

• Logic Level Enable Input (EN)

• Protected External N-type Field Effect Transistor

(nFET) Gate Drive

• Open Drain Fault Indicator (FLAG)

• Power Good Output (PGOOD)

• Programmable Output Under Voltage Sense

(OUTUV)

• Junction Temperature Monitoring (TJ)

• Thermal Foldback Current Limit

• Reduced Solution Footprint

• 4.5mm x 5.75mm, 23-Pin FCQFN package

• Integrated nFET for Common-Use Protection

Requirements

Key Applications

• Input Voltage and Output Overcurrent Protections:

The MAX17617/MAX17617A interrupts load current and

disconnects the output from the input in input voltage

faults and output overcurrent faults.

• Loss of Ground Protection:

The MAX17617/MAX17617A interrupts load current and

disconnects the output from the input in a Loss of

Ground event, such as when the single-fault safety fuse

on its ground path opens up.

• Surge Protection:

The MAX17617A features an output voltage limiting

regulation during transient surges in input voltage to

protect connected loads from short-duration input

voltage surge events.

• UL1310 Class 2 Power Limiter:

The ±3% accurate current limit between 3A and 7A and

±6% accurate power limit of MAX17617/MAX17617A

offer tight protection boundaries in UL1310 Class 2

power supply applications and maximize power delivery

to the load.