NCP1396A Datasheet, PDF (3/27 Pages) ON Semiconductor – High Performance Resonant Mode Controller featuring High−voltage Drivers

NCP1396A, NCP1396B
Vdd
Imin
Vfb ≤ Vfb_off
Vref
Rt
C
IDT
I = Imax for Vfb = 5.3 V
I = 0 for Vfb < Vfb_min
Vdd
+
−
+
DT Adj.
Fmax
Timer
Imax
Vfb = 5
Vdd
Vref
Itimer
If FAULT Itimer else 0
+
−
+
Vref
SS
Timeout
Fault
S
D
Q
Clk Q
R
50% DC
Temperature
Shutdown
Vref
FF
PON
Reset
Fault
Timeout
Fault
BO
Reset
Fast
Fault
Level
Shifter
Vdd
ISS
SS
PON
Reset
Fault
Fault
V_BOOT
Mupper
UVLO
HB
NC
V_CC
FB
RFB
+
−
+
Vfb_fault
IDT
DT
Vdd
IBO
BO
Slow
Fault
+
−
+
VBO
+
−
+
Vref Fault
+
G_− = 1
> 0 only
Vdd
V = V(FB) − Vfb_min
+
Vfb_min
Vref
20 ms Noise
Filter
Deadtime
Adjustment
+
−
+
Vlatch
20 ms Noise
Filter
Mlower
−
+
+
Vref Fault
GND
Fast
Fault
20 ns Noise
Filter
QQ
S
R
PON Reset
Figure 2. Internal Circuit Architecture
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