Analog Integrated Circuit Device Data
2
Freescale Semiconductor
34652
INTERNAL BLOCK DIAGRAM
rchived by Freescale Semiconductor, Inc., 2008
INTERNAL BLOCK DIAGRAM
Figure 2. 34652 Simplified Internal Block Diagram
TIMER
PG
DISABLE
VPWR
UVLO
1.3 V
1.3 V
1.3 V
3.1 V
8.0 礎
UV
OV
ILIM
ICHG
Thermal
Shutdown
Sensor MOSFET
Power MOSFET
VOUT
VIN
+
-
+
-
+
-
External
Resistors
Detection
Programmable
Current Limit
Gate Control
Driver
Logic
Referenced VPWR
Logic
Fixed
Oscillator
Adjustable Oscillator
and
Startup Delay Timer
Timer
and
External
Resistors
Detection
PG
VIN
UV
OV
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