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34652_07 Datasheet(数据表) 3 Page - Freescale Semiconductor, Inc

部件型号  34652
说明  2.0 A Negative Voltage Hot Swap Controller with Enhanced Programmability
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制造商  FREESCALE [Freescale Semiconductor, Inc]
网页  http://www.freescale.com
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34652 Datasheet(HTML) 3 Page - Freescale Semiconductor, Inc

 
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Analog Integrated Circuit Device Data
Freescale Semiconductor
3
34652
PIN CONNECTIONS
PIN CONNECTIONS
Figure 3. 16-SOICN Pin Connections
Table 1. 16-SOICN Pin Definitions
A functional description of each pin can be found in the FUNCTIONAL PIN DESCRIPTION section beginning on page 10.
Pin
Pin Name
Formal Name
Definition
1, 8, 9, 16
VIN
Negative Supply
Input Voltage
This is the most negative power supply input. All pins except DISABLE are referenced
to this input.
2
PG
Power Good Output
(Active High)
This is an active high power good output signal. This pin is referenced to VIN.
3
PG
Power Good Output
(Active Low)
This is an active low power good output signal. This pin is referenced to VIN.
4, 5
VOUT
Output Voltage
This pin is the drain of the internal Power MOSFET and supplies a current limited voltage
to the load.
6
TIMER
Start-Up and Retry
Delay Timer
This input is used to control the time base used to generate the timing sequences at
start-up and the retry delay when the device experiences any fault.
7
NC
No Connect
Not connected.
10
OV
Overvoltage Control
This pin is used to set the upper limit of the input voltage operation range.
11
UV
Undervoltage Control
This pin is used to set the lower limit of the input voltage operation range.
12
VPWR
Positive Supply
Input Voltage
This is the most-positive power supply input. The load connects between this pin and the
VOUT pin.
13
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 34652. It can also be used to reset the fault conditions that
cause a “Power No Good” signal. This pin is referenced to VPWR.
14
ILIM
Current Limit Control
This pin is used to set the overcurrent limit during normal operation.
15
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.
VIN
VIN
ICHG
ILIM
DISABLE
VPWR
OV
UV
VIN
VIN
PG
PG
VOUT
VOUT
NC
TIMER
8
2
3
4
5
7
6
9
16
15
14
13
12
10
11
1




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