MC34652 Datasheet, PDF (3/25 Pages) Freescale Semiconductor, Inc – 2.0 A Negative Voltage Hot Swap Controller with Enhanced Programmability

TERMINAL CONNECTIONS
TERMINAL 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 Terminal Connections
Table 1. 16-SOICN Terminal Definitions
A functional description of each terminal can be found in the FUNCTIONAL TERMINAL DESCRIPTION section beginning on
page 9.
Terminal
1, 8, 9, 16
2
3
4, 5
6
7
10
11
12
13
14
15
Terminal
Name
VIN
PG
PG
VOUT
TIMER
NC
OV
UV
VPWR
DISABLE
ILIM
ICHG
Formal Name
Definition
Negative Supply
Input Voltage
Power Good Output
(Active High)
Power Good Output
(Active Low)
This is the most negative power supply input. All terminals except DISABLE are
referenced to this input.
This is an active high power good output signal. This terminal is referenced to VIN.
This is an active low power good output signal. This terminal is referenced to VIN.
Output Voltage
This terminal 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 terminal is used to set the upper limit of the input voltage operation range.}
Undervoltage Control ^{This terminal 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 terminal
and the VOUT terminal.
Disable Input Control ^{This terminal 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 terminal is referenced to VPWR.
Current Limit Control ^{This terminal is used to set the overcurrent limit during normal operation.}
Charging Current
Limit Control
This terminal 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