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| MP201 Datasheet, PDF (1/12 Pages) Monolithic Power Systems – Dying Gasp Storage and Release Control IC | |||
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The Future of Analog IC Technology
MP201
Dying Gasp Storage and Release
Control IC
DESCRIPTION
The MP201 is a dying gasp storage and release
controller. It charges storage capacitor from the
input during normal operation. Once the storage
capacitor is charged to the selected voltage, the
charge is stopped, and the storage capacitor is
separated from the input. The charging circuit
maintains the storage voltage after the charge
is completed.
The MP201 keeps monitoring the input voltage,
and releases the charge from storage capacitor
to input capacitor when the input voltage is
lower than the selected release voltage. It
regulates the input voltage to keep it close to
release voltage for as long as possible.
The MP201 has built-in current limit circuit
during the charging up of the storage capacitors.
The storage and release voltage can be
programmed to userâs desired value by external
resistors.
The MP201 comes in an SOIC-8 package and
requires a minimum number of readily available
standard external components.
TYPICAL APPLICATION
FEATURES
⢠Wide 4.5V to 18V Input Operating Range
⢠2.5A dumping current from Storage to VIN
⢠Built-in 260mA Current Limit for Charging
Storage Capacitor
⢠User Programmable Storage and Release
Voltage
⢠Dying Gasp FLAG Indicator
⢠Available in SOIC-8 package
APPLICATIONS
⢠Cable/DSL/PON Modems
⢠Home Gateway
⢠Access Point Networks
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Products, Quality Assurance page.
âMPSâ and âThe Future of Analog IC Technologyâ are registered trademarks of
Monolithic Power Systems, Inc.
VIN
4.5V to 18V
C1
47
Open Drain
Output
C2
15pF
2
R3
VIN
464k 3
FB2
C3
2.2nF
8
VMAX
C4
22nF
BST 1
R4
MP201
7
STRG
6
GASP
4 GND
R1
845k
FB1 5
R2
37.4k
R5
10
Connect
to SW
VSTRG
23V
C5
1000
VSTORAGE
5V/div.
VIN
5V/div.
GASP
IR1E0LVE/AdSivE.
1A/div.
MP201 Rev. 1.01
www.MonolithicPower.com
1
11/27/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
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