34652_07 Datasheet, PDF (2/26 Pages) Freescale Semiconductor, Inc – 2.0 A Negative Voltage Hot Swap Controller with Enhanced Programmability

INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
DISABLE
VPWR
Referenced VPWR
Logic
Fixed
Oscillator
Adjustable Oscillator
and
Startup Delay Timer
Timer
and
External
Resistors
Detection
TIMER
PG
-
1.3 V ₊
UVLO
Logic
UV
-
UV
PG
1.3 V ₊
OV
+
OV
1.3 V _-
3.1 V
ILIM
External
Resistors
8.0 µA ^Detection
ICHG
VIN
Thermal
Shutdown
Programmable
Current Limit
Sensor MOSFET
Gate Control
Driver
Power MOSFET
VIN
VOUT
Figure 2. 34652 Simplified Internal Block Diagram
34652
2
Analog Integrated Circuit Device Data
Freescale Semiconductor