MIC2544-2YM 데이터 시트보기 (PDF) - Micrel

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MIC2544-2YM

Programmable Current Limit High-Side Switch

Micrel 

Micrel, Inc.

Pin Configuration

MIC2544/2548

8-pin SOIC (M)

8-Pin MSOP (MM)

Note: Pins 4 and 5 for SOIC and MSOP are different.

Pin Description

Pin Number

MSOP-8

Pin Number

SOIC-9

1

1

2

2

3

3

5

4

7

7

6,8

6,8

4

5

Pin Name

EN

FLG

GND

ILIM

IN

OUT

NC

Pin Function

Enable (Input): Logic-compatible enable input. Active-high (-1) or active-

low (-2). High input >1.7V typical; low input <1.5V typical. Do not float.

MIC2548 only: Also resets thermal shutdown latch.

Fault Flag (Output): Active-low, open-drain output. Indicates overcurrent

or thermal shutdown conditions. MIC2548 only: latched low on thermal

shutdown.

Ground.

Current Limit: Sets current-limit threshold using an external resistor, RSET1

connected to ground. 154Ω < RSET < 2.29kΩ.

Input: Output MOSFET drain. Also powers internal circuitry.

Switch (Output): Output MOSFET source. Pins 6 and 8 must be externally

connected.

Not internally connected.

April 2010

3

M9999-043010

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