MPS MP5921 Manual

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
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
feedback to controller. Also, MP5921 can be
paralleled for higher current applications.
The MP5921 is available in 4mmx5mm QFN
package.
ELECTRICAL SPECIFICATIONS
Parameter
Input Voltage
Output Voltage
Current Limit Per MP5921
Active MP5921 Number
EV5921-V-01A Rev. 1.1
11/7/2019
Arrow.com.
Downloaded from
per device at
drain short conditions
Value Units
12
12
60
4
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
HOT-SWAP INTELLI-FUSE SOLUTION
FEATURES

4V to 16V Operating Input Range

Maximum 50A Output Current

Support 60A Output Current With Air Flow

Integrated Switch with Lower Rds(on) 1mΩ

Built-In MOSFET Driver
room

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
Applications

Integrated Intelli-Fuse Temperature Sense

Output Voltage Power Down Control

Available in a FCQFN 4mmx5mm Package
and
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
V
Assurance.
V "MPS" and "The Future of Analog IC Technology" are Registered
Trademarks of Monolithic Power Systems, Inc.
A
/
www.MonolithicPower.com
© 2019 MPS. All Rights Reserved.
EV5921-V-01A
16V,50A,1mΩ (Rds_on)
Operation for Higher Current
1