MIC2549A-2BN 데이터 시트보기 (PDF) - Micrel
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MIC2549A-2BN Datasheet PDF : 18 Pages
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Micrel, Inc.
Pin Configuration
MIC2545A/2549A
8-Pin SOP (M)
8-Pin DIP (N)
14-Pin TSSOP (TS)
Pin Description
Pin Number
SOP, DIP
Pin Number
TSSOP
1
1
2
3
3
5
4
7
5, 7
8, 12
6, 8
10, 14
2, 4, 6, 9,
11, 13
Pin Name
EN
FLG
GND
ILIM
IN
OUT
NC
Pin Function
Enable (Input): Logic-compatible enable input (−1 version is active high, −2
version is active low). High input >1.8V typical; low input <1.4V typical. Do not
float. MIC2549A only: Also resets thermal-shutdown latch.
Fault Flag (Output): Active-low, open-drain output. Indicates overcurrent or
thermal shutdown. MIC2549A only: Latched low on thermal shutdown.
Ground: supply return.
Current Limit: Sets current-limit threshold using an external resistor (RSET)
connected to ground. 76.8Ω < RSET < 459Ω.
Supply Input: Output MOSFET drain. Also powers internal circuitry. Both IN
pins must be externally connected together.
Switch Output: Output MOSFET source. Both OUT pins must be externally
connected together.
Not internally connected.
June 2011
3
M9999-062711-A
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