ncp1397a ON Semiconductor, ncp1397a Datasheet - Page 25

• Manufacturer Part Number: ncp1397a
• Description: High Performance Resonant Mode Controller With Integrated High-voltage Drivers
• Manufacturer: ON Semiconductor

The High−Voltage Driver
requiring an external high−voltage diode for the capacitor
Fault
The driver features a traditional bootstrap circuitry,
B
A
Figure 48. When the V
Figure 49. The Internal High−voltage Section of the NCP1397
CC
Trigger
Pulse
is to Low, All Pulses are Stopped Until V
Delay
Shifter
Level
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refueling path. Figure 49 shows the internal architecture of
the high−voltage section.
S
R
Q
Q
UVLO
CC
Goes Back to the Startup Voltage
Vboot
Mupper
HB
V
Mlower
GND
CC
Cboot
Dboot
+
aux
V
CC
HV