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NCP1397A Ver la hoja de datos (PDF) - ON Semiconductor
Número de pieza
componentes Descripción
Lista de partido
NCP1397A
High Performance Resonant Mode Controller with Integrated High-Voltage Drivers
ON Semiconductor
NCP1397A Datasheet PDF : 27 Pages
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NCP1397A, NCP1397B
VDD
Vref
Rt
I = Imax for Vfb = 5.3 V
I = 0 for Vfb < Vfb_min
Imin
VFB
≤
VFB(off)
+
−
C
IDT
+
DT Adj.
VDD
Fmax
Timer
VDD
Imax
Vfb = 5
Vref
Itimer1
If FAULT Itimer else 0
+
−
+
Vref
Timeout
Fault
PON
Reset
Fault
S
D
Q
Clk Q
R
50% DC
Temperature
Shutdown
Vref
FF
PON
Reset
Fault
Timeout
Fault
BO
Reset
Fast
Fault
Level
Shifter
SS(dis)
Fault
V
BOOT
Mupper
UVLO
HB
NC
V
CC
FB
RFB
+
−
+
VFB(fault)
G=1
+
−
> 0 only
VDD
V = V(FB)
−
VFB(min)
+
VFB(min)
DT
BO
Fault
IDT
VDD
IBO
Vref
Deadtime
Adjustment
20
m
s Noise
Filter
+
−
+
VBO
+
−
+
Vlatch
20
m
s Noise
Filter
QQ
S
R
+
−
+
Vref(fault)
Vref(OCP)
+
−
+
1
m
s Noise
Filter
Figure 3. Internal Circuit Architecture (NCP1397B)
http://onsemi.com
4
Mlower
−
+
+
Vref Skip
GND
Skip/
Disable
20 ns Noise
Filter
PON Reset
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