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34653 Datasheet(数据表) 3 Page - Freescale Semiconductor, Inc

部件型号  34653
说明  1.0 A Negative Voltage Hot Swap Controller
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制造商  FREESCALE [Freescale Semiconductor, Inc]
网页  http://www.freescale.com
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34653 Datasheet(HTML) 3 Page - Freescale Semiconductor, Inc

 
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Analog Integrated Circuit Device Data
Freescale Semiconductor
3
34653
PIN CONNECTIONS
PIN CONNECTIONS
Figure 3. 8-SOICN Pin Connections
Table 1. 8-SOICN Pin Definitions
A functional description of each pin can be found in the FUNCTIONAL PIN DESCRIPTION section beginning on page 8.
Pin
Pin Name
Formal Name
Definition
1
PG
Power Good Output
(Active High)
This is an active high power good output signal. This pin is referenced to VIN.
2
PG
Power Good Output
(Active Low)
This is an active low power good output signal. This pin is referenced to VIN.
3
VOUT
Voltage Output
This pin is the drain of the internal Power MOSFET and supplies a current limited voltage
to the load.
4
VIN
Negative Supply
Voltage Input
This is the most negative power supply input. All pins except DISABLE are referenced
to this input.
5
VPWR
Positive Supply
Voltage Input
This is the most-positive power supply input. The load connects between this pin and the
VOUT pin.
6
DISABLE
Disable Input Control
This pin is used to easily disconnect or connect the load from the main power line by
disabling or enabling the 34653. It can also be used to reset the fault conditions that
cause a “Power No Good” signal. This pin is referenced to VPWR.
7
ILIM
Current Limit Control
This pin is used to set the overcurrent limit during normal operation.
8
ICHG
Charging Current
Limit Control
This pin is used to set the load’s input capacitor charging current limit, hence limiting the
inrush current to a known constant value.
ICHG
ILIM
DISABLE
VPWR
VIN
PG
PG
VOUT
2
3
4
8
7
6
5
1




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