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PDF MP201 Data sheet ( Hoja de datos )

Número de pieza MP201
Descripción Dying Gasp Storage and Release Control IC
Fabricantes MPS 
Logotipo MPS Logotipo



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MP201
The Future of Analog IC Technology
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 st opped, and the storage capacitor is
separated fr om the input. The charging circuit
maintains the storage voltage after the charge
is completed.
The MP201 keeps monit oring the input voltage,
and releases the charge from stora ge capacitor
to input ca pacitor when the input voltage is
lower than the select ed release voltage. It
regulates th e input voltage to kee p it clo se t o
release voltage for as long as possible.
The MP201 has built-in current limit circuit
during the charging up of the storage capacitors.
The storag e and re lease volta ge can b e
programmed to user’s desired value by external
resistors.
The MP201 comes in a n SOIC-8 p ackage 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 260 mA 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.
“MPS” and “The Future of Analog IC Technology” 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
BST
1
C4
22nF
R4 MP201
STRG 7
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
11/27/2012
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
1
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MP201 pdf
MP201 – DYING GASP STORAGE AND RELEASE CONTROL IC
TYPICAL CHARACTERISTICS
VIN = 12V, VSTORAGE = 23V, VRELEASE=10.2V, For DCDC Converter: POUT=5W, VOUT=3.3V, TA = +25ºC,
unless otherwise noted.
Release Time vs.
Storage Capacitance
300
250
200
150
100
50
0
0 500 1000 1500 2000 2500
Thermal Performance
12
10
8
6
4
2
0
0.0001 0.001 0.01 0.1 1
10
3
2.8
2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4 Safe Operation Area
0.2
0
5 10 15 20
25
30
VOLTAGE BETWEEN
STRG PIN AND VIN PIN (V)
MP201 Rev. 1.01
11/27/2012
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
5

5 Page





MP201 arduino
MP201 – DYING GASP STORAGE AND RELEASE CONTROL IC
TYPICAL APPLICATION CIRCUITS
VIN
12V to 18V
C3
2.2nF
C1
22
R5
10k
R3
464 k
R4
49. 9k
C2
15pF
VIN
FB2
VMAX
STRG
MP201
FB1
R1
845k
GASP
GND
BST
R2
37. 4k
C4
22nF
SW
VSTRG
23V
C5
1000
R5
10
VIN MPS DC/DC VOUT
converter
Figure 6 – MP201 Application Circuit
MP201 Rev. 1.01
11/27/2012
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
11

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