DESCRIPTION

The MP5990 is a fully integrated, PMBus

compatible, compact hot-swap protection

device. It contains a hot-swap controller and a

high-side power MOSFET (HS-FET), which

allow it to operate as a standalone device. The

MP5990 can also operate as a hot-swap

controller in parallel with the multi-phase

MP5991. The device can achieve up to 50A of

continuous output current (IOUT) per device at

room temperature, and up to 60A of continuous

IOUT with airflow.

The device limits the backplane voltage drop by

limiting the inrush current to the load while a

circuit card is inserted into a live backplane

power source. The MP5990 limits the internal

MOSFET current (IFET) by controlling the gate

voltage (VGATE) via the current limit (ILIMIT)

reference input and soft-start ramp.

The MP5990 provides many features to simplify

system design, such as an integrated current

mirror to monitor IOUT and integrated on-die

temperature-sensing. This eliminates the need

for an external current-sense power resistor,

power MOSFET, and temperature-sense device.

The MP5990 provides rich fault protections,

such as input voltage (VIN) over-voltage

protection (OVP), IOUT over-current protection

(OCP), short-circuit protection (SCP), and overtemperature protection (OTP). The MP5990

detects power MOSFET gate, source, and drain

short conditions. The fault status can be

indicated with the fault report output (GOK).

The MP5990 also provides VIN under-voltage

warning (UVW), output over-current warning

(D_OC) and power good (PG) indication.

The PMBus interface provides VIN, input current

(IIN), input energy (EIN), output voltage (VOUT),

IOUT, input power (PIN), and output power (POUT)

telemetry. The MP5990 monitors and reports

fault statuses through the PMBus interface.

The MP5990 is available in an LGA-45

(5mmx7mm) package.

FEATURES

• 4V to 16V Operating Input Voltage (VIN)

Range

• Maximum 50A of Output Current (IOUT)

• Supports 60A of IOUT with Air Flow

• 1mΩ Integrated Power MOSFET

• PMBus/I2C 1.3 Compatible

• ±1% IMON Reporting Accuracy

• Built-In MOSFET Driver

• Integrated Current-Sense with Sense Output

• Configurable Over-Current Limit

• Configurable Short-Circuit Current Limit

• Built-In Insertion Delay

• Configurable Soft Start (SS)

• Built-In Fuse Health Reporting

• Fault Signal Output (GOK)

• Power Good Indication (PG)

• VIN Under-Voltage Warning (UVW)

• Fault Type Indication (FLT_TYPE)

• Faults Auto-Record to the NVM

• VIN OVP, SCP, OCP, and OTP with Options

for No Action, Latch, Retry, or Hiccup Mode

• Intelli-Fuse Junction Temperature Monitoring

• Intelli-Fuse Controller

• Built-in NVM to Store Custom Configurations

• High Precision EIN, PIN, POUT, and IOUT

Reporting

• Configurable TON_DELAY and

TOFF_DELAY

• NVM Write Protection

• Available in an LGA-45 (5mmx7mm)

Package

APPLICATIONS

• Hot Swaps

• PC Cards

• Disk Drives

• Servers

• 5G Telecom

• Networking

• Laptops