1. General description
NPS3102A and NPS3102B are low-ohmic (17 mΩ),
high current (13.5 A), resettable electronic fuses
that are targeted for 12 V applications. They are
designed to protect downstream loads from exposure
to excessive voltage and protect the power supply from
load faults and large inrush currents.
Output slew rate is controlled by a capacitor at dVdt
pin. Current limit can be adjusted in the 2 A to 13.5 A
range using a resistor at ILIM pin. The voltage at ILIM
pin can also be used as a measure of the load current
in real-time. The devices include a built-in over voltage
clamp that will limit the output voltage during input over
voltage conditions.
The devices also include a multi-function EN/FLT pin.
When the pin is left floating and the voltage at IN is
greater than the under voltage lock-out, the devices
turn on. During operation, the voltage at the pin can be
used as a fault indicator to determine if the devices are
operating normally. Pulling the EN/FLT pin low will turn
off the devices.
During thermal shutdown, both devices disable the
integrated pass-FET if the die temperature crosses the
over temperature threshold. The NPS3102A latches
off under a thermal shutdown event and requires
user reset by toggling the EN/FLT pin or cycling the
voltage at the IN pin. The NPS3102B integrates autoretry,
which safely attempts to re-enable the pass-FET
without the need for user intervention.

2. Features and benefits
• Up to 18 V operating range, 21 V absolute
maximum
• Integrated 17 mΩ pass MOSFET
• 15 V output voltage clamp
• 2 A to 13.5 A adjustable output current clamp
• 2 μs short circuit protection response time
• Programmable output rise time control
• Built-In thermal shutdown with fault alert pin
• Fault response options: latch-off, auto-retry
• Leadless plastic package; 10 terminals, body 3.0 x
3.0 x 0.75 mm (DFN3030-10/SOT8037-1)
• ESD protection:
• HBM ANSI/ESDA/JEDEC JS-001 class 2
exceeds 2000 V
• CDM ANSI/ESDA/JEDEC JS-002 class C3
exceeds 1000 V
• Specified from Tj = -40 °C to +125 °C
3. Applications
• Server
• Solid State Drive (SSD) and Hard Disk Drive (HDD)
• Mobile infrastructure
• Fan control
• Hot-Swap/Plug