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MIC2012PCM Datasheet(PDF) 3 Page - Micrel Semiconductor

Part # MIC2012PCM
Description  USB Power Controller
Download  16 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC2012PCM Datasheet(HTML) 3 Page - Micrel Semiconductor

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January 2005
3
MIC2012/2072
MIC2012
Micrel
Pin Description
Pin Number
Pin Number
Pin Name
Pin Function
(MIC2012)
(MIC2012-1, -2)
1
1
FAULT1
Fault Status (Output): Internal pull-up or open-drain. Asserted LOW when
Channel is in a thermal shutdown state or overcurrent condition for more
than 5ms. MIC2072 latches this output in its asserted state upon an over-
current condition. Toggling EN1 or removing the load will reset the circuit
breaker latch and deassert FAULT1.
n/a
2
EN1
Enable (Input): Channel 1, active-high (–1) or active-low (–2). Toggling this
input also resets the latched output of the MIC2072.
2
3
S3#
Control (Input): When this input is HIGH, the MAIN inputs are connected to
OUT1 and OUT2 via 100mΩ MOSFET switches. When this input is LOW
the AUX inputs are connected to OUT1 and OUT2 via 500mΩ MOSFET
switches.
3
5
AUX
Auxiliary 5V Supply (Input): Also used as power supply for internal circuitry.
n/a
4, 6, 7
NC
No Connection: This pin may be connected to other pins without restriction.
4
8
GND
Ground
5
9, 10
OUT2
Channel 2 (Output): For MIC2012-1, -2 both pins must be externally con-
nected together.
6
11, 12
MAIN
5V Main Supply (Input): All MAIN inputs must be connected together exter-
nally.
7
13, 14
OUT1
Channel 1 (Output): For MIC2012-1, -2 both pins must be externally con-
nected together.
n/a
15
EN2
Enable (Input): Channel 2, active-high (–1) or active-low (–2). Toggling this
input also resets the latched output of the MIC2072.
8
16
FAULT2
Fault Status (Output): Internal pull-up or open-drain. Asserted LOW when
Channel 2 is in a thermal shutdown state or overcurrent condition for more
than 5ms. MIC2072 latches this output in its asserted state upon an over-
current condition. Toggling EN2 or removing the load will reset the circuit
breaker latch and deassert FAULT2.


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