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SC1933C Scheda tecnica(PDF) 2 Page - Power Integrations, Inc.

Il numero della parte SC1933C
Spiegazioni elettronici  Off-Line CV/CC QR Flyback Switcher IC with Integrated Primary Switch, Synchronous Rectification and FluxLink Feedback
PDF  28 Pages
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Produttore elettronici  POWERINT [Power Integrations, Inc.]
Homepage  http://www.powerint.com
Logo POWERINT - Power Integrations, Inc.

SC1933C Scheda tecnica(HTML) 2 Page - Power Integrations, Inc.

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Rev. C 11/18
2
SC1933C/SC1936C
www.power.com
Figure 3. Primary Controller Block Diagram.
Figure 4. Secondary Controller Block Diagram.
PI-8045a-091217
DETECTOR
ENABLE
SR
FORWARD
(FWD)
FEEDBACK
(FB)
SECONDARY
BYPASS
(BPS)
SECONDARY
GROUND
(GND)
ISENSE
(IS)
To
Primary
Receiver
SYNCRONOUS RECTIFIER DRIVE
(SR)
CABLE DROP
COMPENSATION/
FEEDBACK
COMPENSATION
FEEDBACK
DRIVER
INH
QR
TsMAX
INH
QR
tOFF(MIN)
tSECINH(MAX)
tSS(RAMP)
4.4 V
3.9 V
SR CONTROL
INH
DCM
VREF
IS THRESHOLD
VPK
FORWARD
BPSUV
OUTPUT VOLTAGE
(VOUT)
OSCILLATOR/
TIMER
REGULATOR
4.4 V
SECONDARY
LATCH
CONSTANT
POWER
HANDSHAKE/
LATCH-OFF
SR
THRESHOLD
CONTROL
S
Q
Q
R
+
+
-
+
-
+
-
VOUT
PI-8044e-051618
+
-
THERMAL
SHUTDOWN
OSCILLATOR/
TIMERS
OV/UV
LATCH-OFF
BPP/UV
VILIM
RESET
PRIM/SEC
SecPulse
PRIM/SEC
UV/OV
BPP/UV
ENABLE
ENABLE
IS
FAULT
FAULT
PRIM-CLK
GATE
BPP
DRIVER
JITTER
tON(MAX)
ILIM
BPP/UV
GATE
DRAIN
(D)
SOURCE
(S)
UNDER/OVER
INPUT VOLTAGE (V)
PRIMARY BYPASS
(BPP)
tOFF(BLOCK)
SenseFET
Power
Switch
tON(MAX)
tOFF(BLOCK)
GATE
VILIM
LATCH-OFF
GATE
PRIMARY OVP
LATCH
RECEIVER
CONTROLLER
PRIMARY
BYPASS PIN
UNDERVOLTAGE
VSHUNT
VBP+
LINE
INTERFACE
AUTO-RESTART
COUNTER
PRIMARY BYPASS
REGULATOR
PRIMARY
BYPASS PIN
CAPACITOR
SELECT AND
CURRENT
LIMIT
Q
R
S
Q
+
-
LEB
SecREQ
PRIM-CLK
SEC-
LATCH
From
Secondary
Controller



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