Functional Block Diagram
+OUT
START
BIAS
RUN
BIAS
Synchronous
Rectifier
+IN
Driver
Vcc
ZVS POWER
TRAIN
Driver
-OUT
ZVS
ZVS POWER
TRAIN
Fast Current Limit
+
-
-IN
DC
FB
Output OVP
+
-
+
FB
DC
DC
-
-
Timing
Logic
Reset
DC
Period Ramp
+
Enable
ENABLE
LFF
On-Duty Ramp
-
+
DC
ENB
+
-
+5V
DC
Slow Current Limit
Input UVP
+
-
DC
+
-
Input OVP
120us
delay
Fault
Latch
And
Reset
Logic
+
CFB2
EA Fault
DC
-
CFB1
+
RFB1
+
-
120us
delay
-
DC
Over Temp
FB
+
-
Error Amp
+
-
DC
TM
ENB
TRIM/SS
RSS
CSS INT
VREF
1.22V
Temp
Sensor
SGND
Fault
Figure 3 PI3101 Functional Block Diagram
Picor Corporation ? picorpower.com
PI3101-00-HVIZ
Rev 1.1, April 29 th , 2010
Page 3 of 18
相关PDF资料
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PLF0E681MDO1 CAP ALUM 680UF 2.5V 20% RADIAL
PLG0E392MD01 CAP ALUM 3900UF 2.5V 20% RADIAL
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PLX1C151MCL1TD CAP ALUM 150UF 16V 20% RADIAL
PM0603-R27J INDUCTOR CHIP .27UH 5% SMD
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