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.
Downloaded from
