ncp1395 ON Semiconductor, ncp1395 Datasheet - Page 4

• Manufacturer Part Number: ncp1395
• Description: High Performance Resonant Mode Controller
• Manufacturer: ON Semiconductor

Fmax
Timer
AGND
Fmin
BO
SS
DT
FB
RFB
I = Imax for Vfb = 5 V
I = 0 for Vfb < Vfb_off
ISS
Vdd
IBO
If FAULT Itimer else 0
+
Vref
Vref
Vref
Vfb_fault
Vdd
+
−
+
Vdd
IDT
VBO
+
−
+
Itimer
Vref
C
Vdd
Vdd
Imin
Imin
Vfb = < Vfb_off
Vfb = < Vfb_off
Imax
Vfb = 5
IDT
Vdd
+
−
+
+
Vlatch
Vfb_off
G = 1
+
−
+
−
+
PON
Reset
Fault
DT Adj.
Figure 2. Internal Circuit Architecture
+
−
Timeout
Fault
> 0 only if
V(FB) > Vfb_off
20 ms Noise
SS
Filter
Vref
http://onsemi.com
NCP1395A/B
D
Clk
Vdd
S
Adjustment
4
R
Deadtime
50% DC
Q
Q
A Version Only
SS Reset on
UVLO
Timeout
Fault
Fault
Fault
20 V
PON
Reset
Temperature
Shutdown
Vref
PON Reset
BO
Reset
FF
Vref_FB
+
−
+
−
+
−
+
+
Vref Fault
Vref Fault
+
gm
NINV
OUT
Slow
Fault
Fast
Fault
V
B
A
PGND
CC