MIC2549A-2YN Micrel Inc, MIC2549A-2YN Datasheet - Page 3

• Manufacturer Part Number: MIC2549A-2YN
• Description: Programmable Current Limit High-Side Switch With Over-Temperature Latch ( )
• Manufacturer: Micrel Inc
• Type: High Sider

Specifications of MIC2549A-2YN

• Input Type: Non-Inverting
• Number Of Outputs: 1
• On-state Resistance: 35 mOhm
• Current - Peak Output: 3A
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output / Channel: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Pin Description
April 2004
MIC2545A/2549A
Pin Number
SOP, DIP
5, 7
6, 8
1
2
3
4
2,4,6,9,11,13
Pin Number
TSSOP
10, 14
8, 12
1
3
5
7
Pin Name
GND
OUT
FLG
ILIM
EN
NC
IN
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 (R
connected to ground. 76.8 < R
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
3
SET
< 459 .
M9999-041204
SET
Micrel
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