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PDF MP5010A Data sheet ( Hoja de datos )
| Número de pieza | MP5010A | |
| Descripción | 3V-18V 1A-5A Programmable-Current- Limit Switch | |
| Fabricantes | MPS | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MP5010A (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
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The Future of Analog IC Technology
MP5010A
3V-18V, 1A-5A Programmable-Current-
Limit Switch with Over-Voltage Clamp
DESCRIPTION
The MP5010A is a protection device designed to
protect circuitry on the output (source) from
transients on the input (VCC). It also protects the
input from undesired shorts and transients
coming from the source.
A small capacitor on the dv/dt pin controls the
slew rate that limit the inrush current at the
source. For instance, a 1nF capacitor results in a
source ramp-up time of 3ms.
The maximum load at the source is current
limited using a sense FET topology. An external
resistor between the I-Limit pin and the Source
pins controls the magnitude of the current limit.
An internal charge pump drives the gate of the
power device, allowing the DMOS power FET to
have a very low ON-resistance of just 40mΩ.
The MP5010A also protects the source from the
input being too low or too high. Under-voltage
lockout ensures that the input remains above the
minimum operating threshold before the power
device turns on. If the input rises above the high
output threshold, the MP5010A limits the source
voltage.
FEATURES
• Wide 3V-to-18V Operating Input Range
• 5.7V Output Over-Voltage Clamp
• Integrated 40mΩ Power FET
• Enable/Fault Pin
• Adjustable Output Voltage Slew Rate
• Adjustable Current Limit
• Thermal Protection
APPLICATIONS
• Hot-Swappable Devices
• Wireless Modem Data Cards
• PC Cards
• Laptops
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.
TYPICAL APPLICATION
MP5010A Rev. 1.0
www.MonolithicPower.com
2/7/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
1
http://www.Datasheet4U.com
1 page  
MP5010A – 3V-18V, 1A-5A PROGRAMMABLE CURRENT LIMIT SWITCH
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 5V, VEN=5V, RLIMIT=22Ω, COUT=10µF, Cdv/dt =1nF, TA=25°C, unless otherwise noted.
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0 Hold Current
0.5
0.0
0 10 20 30 40 50 60 70 80 90100
2.4
2.2
2.0
1.8 Trip Current
1.6
1.4
1.2
1.0
0.8
0.6
0.4 Hold Current
0.2
0.0
0 10 20 30 40 50 60 70 80 90 100
5.0
4.5
4.0
3.5
3.0
2.5 Trip Current
2.0
1.5
1.0 Hold Current
0.5
0.0
0 10 20 30 40 50 60 70 80 90 100
2.4
2.2
2.0
1.8
1.6
1.4 Trip Current
1.2
1.0
0.8
0.6
0.4 Hold Current
0.2
0.0
0 10 20 30 40 50 60 70 80 90100
1000
900
800
700
600
500
3
3.5 4 4.5 5 5.5
600
550
500
450
400
350
300
3 3.5 4 4.5 5 5.5
60
55
50
45
40
35
30
3 3.5 4 4.5 5 5.5
Input to OutpVuotltage
vs. Load Current
140
120
100
80
60
40
20
0
0 0.5 1 1.5 2 2.5
Hold Current vs.
InputVoltage
3
2.5
2
1.5
1
3 3.5 4 4.5 5 5.5
MP5010A Rev. 1.0
www.MonolithicPower.com
2/7/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
5
5 Page 
MP5010A – 3V-18V, 1A-5A PROGRAMMABLE CURRENT LIMIT SWITCH
The Enable/Fault line must remain above the
MID level for the output to turn ON.
The fault flag is an internal flip-flop that can be
set or reset under the following conditions:
1. Thermal Shutdown: set fault flag
2. Under-Voltage: reset fault flag
3. LOW on Enable/Fault pin: reset fault
flag
4. MID on Enable/Fault pin: no effect
Given a fault, the Enable/Fault pin is driven to
MID.
There are 4 types of faults, and each fault has a
direct and indirect effect on the Enable/Fault pin
and the internal fault flag. In a typical
application there are one or more of the
MP5010A chips in a system. The Enable/Fault
lines are typically be connected together.
Table 1—Fault Function Influence in Application
Fault description
Short/Over
Current
Under Voltage
Over Voltage
Thermal
Shutdown
Internal action
Limit current
Output turns OFF
Limit output voltage
Shutdown. The part
is latched OFF until
a UVLO or
externally driven to
ground.
Effect on Fault Pin
none
Internally drives
Enable/Fault pin to
logic LOW
None
Internally drives
Enable/Fault pin
to MID
Effect on Flag
none
Flag is reset
None
Flag is Set
Effect on secondary Part
none
Disables secondary output,
and resets fault flag.
None
Disables secondary part
output.
MP5010A Rev. 1.0
www.MonolithicPower.com
2/7/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
11
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| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet MP5010A.PDF ] | |
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