NCP1337 データシートの表示（PDF） - ON Semiconductor
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NCP1337 Datasheet PDF : 14 Pages
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NCP1337
BO
FB
CS
GND
−
+
5V
+
+
+
3V −
SQ
R
DISABLE
Vdd
PERM. LATCH
Vdd
VCC < 4 V
TSD
8 ms
timeout
TSD
35 ms
max Toff
Toff
10 mA
VBO
500 mV
+
+−
BOK
OVP
Startup
S
Ton
Soxyless
Clk
Q
Ton
7.5 ms min
period
D
Q
Toff
SStart
R1 R2
Skip
Ton
100 mV
Vdd 130 mV
+
−
+
SSkip
67 ms
max Ton
3V
VBO
Ton
4k
20 kHz
Low−pass
filter
Vdd
500 mV
FAULT
if Zener
activated
Setpoint
70 mA x VBO − 35 mA
−
+
CS
comp.
PERM.
LATCH
300 ms
Soft−Skipt
4 ms
soft−start
SSkip
SStart
TSD
FAULT
Management*
350 ns
LEB
2p
FAULT
(*If FAULT duration > 80 ms = > STOP
Restart when 2nd time VCC = VCCon)
12 V
10 V
5V +
OVP
5.5 ms
blanking
VCC
Inhib
Soxyless
demag
detection
Soxyless
+
−
9.5 mA or
600 mA
−
+
+
18.6 V
DRV
HV
VCC
Figure 2. Internal Circuit Architecture
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