34652_07 Datasheet, PDF (3/26 Pages) Freescale Semiconductor, Inc – 2.0 A Negative Voltage Hot Swap Controller with Enhanced Programmability

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