MPS MP5921, Manual

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EV5921-V-01A
16V,50A,1m Ω (Rds_on)
HOT-SWAP INTELLI-FUSE SOLUTION
EV5921-V-01A Rev. 1.1 www.MonolithicPower.com
1
11/7/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2019 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
MP5921 is a monolithic integrated controller
and switch. It contains a high-side MOSFET
and other circuitry that enables it to work as
stand-alone or to be controlled by a hot-swap
controller. MP5921 drives up to 50 A of
continuous current per device at room
temperature, while with air flow, the continuous
current can reach to 60A.
The MP5921 limits the inrush current to the
load when a circuit card is inserted into a live
backplane power source, thereby limiting the
backplane’s voltage drop. MP5921 limits the
internal MOSFET current by controlling the gate
voltage through the current limit reference input.
MP5921 offers many features to simplify the
system design. It provides an integrated
solution to monitor the output current and the
die temperature, eliminating the need for an
external current-sense power resistor, power
MOSFET, and thermal sense device.
The MP5921 detects the power FET gate,
source, and drain short conditions and
feedback to controller. Also, MP5921 can be
paralleled for higher current applications.
The MP5921 is available in 4mmx5mm QFN
package.
ELECTRICAL SPECIFICATIONS
Parameter Value Units
Input Voltage 12 V
Output Voltage 12 V
Current Limit Per MP5921 60 A
Active MP5921 Number 4 /
FEATURES

4V to 16V Operating Input Range

Maximum 50A Output Current

Support 60A Output Current With Air Flow

Integrated Switch with Lower Rds(on) 1m Ω

Built-In MOSFET Driver

3.0V LDO Output

Integrated Current Sensing with Sense
Output

Separate Current Sensing Output Used to
Program Over-Current Value

Built-In Insertion Delay

Adjustable Soft Start

Output Short-Circuit Protection

Over-Temperature Protection

Built-In Fuse Health Reporting

Fault Signal Output

Parallel Operation for Higher Current
Applications

Integrated Intelli-Fuse Temperature Sense

Output Voltage Power Down Control

Available in a FCQFN 4mmx5mm Package
APPLICATIONS

Hot Swap

PC Cards

Disk Drives

Servers

Networking

Laptops
All MPS parts are lead-free, halogen free, and adhere to the RoHS
directive. For MPS green status, please visit MPS website under Quality
Assurance.
“MPS” and “The Future of Analog IC Technology” are Registered
Trademarks of Monolithic Power Systems, Inc.
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