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PDF MP5000 Data sheet ( Hoja de datos )
| Número de pieza | MP5000 | |
| Descripción | 12V 5A Programmable Current Limit Switch | |
| Fabricantes | MPS | |
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MP5000
12V, 5A Programmable Current
Limit Switch
DESCRIPTION
The MP5000 is a protection device designed to
protect circuitry on the output (source) from
transients on input (VCC). It also protects VCC from
undesired shorts and transients coming from the
source.
At start up, inrush current is limited by limiting the
slew rate at the source. The slew rate is
controlled by a small capacitor at the dv/dt pin.
The dv/dt pin has an internal circuit that allows
the customer to float this pin (no connect) and
still receive 1.1ms ramp time at the source.
The max load at the output (source) is current
limited. This is accomplished by utilizing a sense
FET topology. The magnitude of the current limit
is controlled by an external resistor from the I-
Limit pin to the Source pin.
An internal charge pump drives the gate of the
power device, allowing a very low on-resistance
DMOS power FET of just 44mΩ.
The source is protected from the VCC input being
too low or too high. Under Voltage Lockout
(UVLO) assures that VCC is above the minimum
operating threshold, before the power device is
turned on. If VCC goes above the high output
threshold, the source voltage will be limited.
FEATURES
Integrated 44mΩ Power FET
Enable/Fault Pin
Adjustable Slew Rate for Output Voltage
Adjustable Current Limit: 1-5A
Thermal Protection
Over Voltage Limit
APPLICATIONS
Hot Swap
PC Cards
Laptops
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.
TYPICAL APPLICATION
MP5000 Rev. 1.41
www.MonolithicPower.com
9/6/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
1
http://www.Datasheet4U.com
1 page  
MP5000 – 12V, 1A-5A PROGRAMMABLE CURRENT LIMIT SWITCH
TYPICAL PERFORMANCE CHARACTERISTICS
MP5000 Rev. 1.41
www.MonolithicPower.com
9/6/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
5
5 Page 
MP5000 – 12V, 1A-5A PROGRAMMABLE CURRENT LIMIT SWITCH
PCB LAYOUT
PCB layout is very important to achieve stable
operation. Please follow these guidelines and
take below figure for reference. Place Rlimit
close to I_limit pin, Cdv/dt close to dv/dt pin and
input cap close to VCC pin. Keep the N/C pin float.
Put vias in thermal pad and ensure enough
copper area near VCC and source to achieve
better thermal performance.
VIN VOUT
C3
GND 1
EN/ FAULT
dv/dt 2
EN/ FAULT 3
I_LIMIT 4
N/C 5
VIN
RLIMIT
10 SOURCE
9 SOURCE
8 SOURCE
7 SOURCE
6 SOURCE
GND
VIN
Top Layer
Figure 3―PCB Layout
Bottom Layer
MP5000 Rev. 1.41
www.MonolithicPower.com
9/6/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet MP5000.PDF ] | |
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