MP5001 MPS, MP5001 Datasheet

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MP5001

Manufacturer Part Number
MP5001
Description
5v, 1a- 5a Programmable Current Limit Switch
Manufacturer
MPS
Datasheet

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The Future of Analog IC Technology
DESCRIPTION
The MP5001 is a protection device designed to
protect circuitry on the output (source) from
transients on input (V
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 a 1.5ms 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 V
too low or too high. Under Voltage Lockout
(UVLO) assures that V
operating threshold, before the power device is
turned on. If V
threshold, the source voltage will be limited.
TYPICAL APPLICATION
MP5001 Rev.0.92
10/15/2009
VIN
EN
CC
goes above the high output
CC
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
). It also protects V
CC
is above the minimum
CC
C dv/dt
input being
© 2009 MPS. All Rights Reserved.
www.MonolithicPower.com
CC
from
10
6
7
8
9
N/C
I-Limit
Enable/Fault
dv/dt
GND
FEATURES
APPLICATIONS
MP5001
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks
of Monolithic Power Systems, Inc.
VCC
5V, 1A- 5A Programmable Current
Integrated 44mΩ Power FET withstand 20V
Enable/Fault Pin
Adjustable Slew Rate for Output Voltage
Adjustable Current Limit
Thermal Protection
Over Voltage Limit
Hot Swap
PC Cards
Cell Phones
Laptops
11
Source
Source
Source
Source
Source
R
LIMIT
5
4
3
2
1
VOUT
Limit Switch
MP5001
1

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MP5001 Summary of contents

Page 1

... The Future of Analog IC Technology DESCRIPTION The MP5001 is a protection device designed to protect circuitry on the output (source) from transients on input ( also protects V CC 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 ...

Page 2

... Input Voltage Operating Range……….4V to 10V Operating Junct. Temp (T )…….–40°C to +85°C J MP5001 Rev.0.92 10/15/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. MP5001 – 5V, 1A- 5A PROGRAMMABLE CURRENT LIMIT SWITCH ORDERING INFORMATION Package Top Marking QFN10 (3x3) W5 PACKAGE REFERENCE ...

Page 3

... Measure at (30% to 90%)/0.6. 6) Maximum Input Voltage to be≤6.0V if Vcc ≥ 6.0V. Maximum Input Voltage to be Vcc if Vcc ≤ 6.0V. MP5001 Rev.0.92 10/15/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. MP5001 – 5V, 1A- 5A PROGRAMMABLE CURRENT LIMIT SWITCH F, T =25°C, unless otherwise noted. μ J ...

Page 4

... Negative Input Voltage to the Device. This is used as the internal reference for the IC Positive input voltage to the device (Exposed Pad). CC MP5001 Rev.0.92 10/15/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. MP5001 – 5V, 1A- 5A PROGRAMMABLE CURRENT LIMIT SWITCH www.MonolithicPower.com © 2009 MPS. All Rights Reserved. 4 ...

Page 5

... Peak Current(A) MP5001 Rev.0.92 10/15/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. MP5001 – 5V, 1A- 5A PROGRAMMABLE CURRENT LIMIT SWITCH =10uF, Cdv/dt=1nF, T =25°C, unless otherwise noted. OUT A Supply Current,Output Disabled vs. Input Voltage ...

Page 6

... I OUT 1A/div 100ms/div MP5001 Rev.0.92 10/15/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. MP5001 – 5V, 1A- 5A PROGRAMMABLE CURRENT LIMIT SWITCH =10uF, Cdv/dt=1nF, T =25°C, unless otherwise noted. OUT A Turn on Delay and Rise Time with 1uF Load,no Cdv/dt C =1uF,no load ...

Page 7

... Trip Current=2.11A Hold Current=0.81A Thermal Shutdown I OUT 0.5A/div 200ms/div MP5001 Rev.0.92 10/15/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. MP5001 – 5V, 1A- 5A PROGRAMMABLE CURRENT LIMIT SWITCH =10uF, Cdv/dt=1nF, T =25°C, unless otherwise noted. OUT A V OUT 2V/div I OUT ...

Page 8

... BLOCK DIAGRAM Enable/ Enable Fault Thermal Shutdown UVLO MP5001 Rev.0.92 10/15/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. MP5001 – 5V, 1A- 5A PROGRAMMABLE CURRENT LIMIT SWITCH Vcc Charge Pump Current Limit Voltage dv/dt Clamp Control Figure 1—Functional Block Diagram www.MonolithicPower.com © 2009 MPS. All Rights Reserved. ...

Page 9

... MP5001 Rev.0.92 10/15/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. MP5001 – 5V, 1A- 5A PROGRAMMABLE CURRENT LIMIT SWITCH RISE TIME The rise time is a function of the capacitor (Cdv/dt) on the dv/dt pin. Cdv/dt ...

Page 10

... MP5001 Rev.0.92 10/15/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. MP5001 – 5V, 1A- 5A PROGRAMMABLE CURRENT LIMIT SWITCH Under a fault, the Enable/Fault pin is driven to the mid level. 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 ...

Page 11

... Top Layer MP5001 Rev.0.92 10/15/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. MP5001 – 5V, 1A- 5A PROGRAMMABLE CURRENT LIMIT SWITCH Place Rlimit close to I_limit pin, Cdv/dt close to dv/dt pin and input cap close to Vcc (Exposed Pad). Keep the N/C pin float. Put vias in thermal ...

Page 12

... Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications. MP5001 Rev. 0.92 10/15/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. MP5001 – 5V, 1A- 5A PROGRAMMABLE CURRENT LIMIT SWITCH QFN10 (3mm x 3mm) 0.30 0.50 0. ...

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