MP5007 데이터 시트보기 (PDF) - Monolithic Power Systems

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MP5007

5V, 1A- 5A Programmable Current Limit Switch

Monolithic Power Systems 

The Future of Analog IC Technology

MP5007

5V, 1A- 5A Programmable Current

Limit Switch

DESCRIPTION

The MP5007 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 and still receives a

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 37mΩ.

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 37mΩ Power FET

• Enable/Fault Pin

• Adjustable Slew Rate for Output Voltage

• Adjustable Current Limit

• Thermal Protection

• Over Voltage Limit

• Available in 3x3mm QFN10 Package

APPLICATIONS

• Hot Swap

• PC Cards

• Cell Phones

• Laptops

All MPS parts are lead-free and adhere to the RoHS directive. 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

RLIMIT

VCC

C2

C3

10V

10V

EN

6 N/C

11

VCC Source 5

7 I-Limit

4

Source

C4

MP5007

8 Enable/Fault Source 3

10V

Cdv/dt

9 dv/dt

10 GND

Source 2

Source 1

VOUT

MP5007 Rev.1.1

www.MonolithicPower.com

1

9/2/2014

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2014 MPS. All Rights Reserved.

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