Pin # Pin Name
Function
1
VCC
2
Rt
Supplies the Driver Timing Resistor
3
BO
Brown
Out
4
GND
IC Ground
5
Mlower
Low
Side Driver Output
6
HB
Half
Bridge Connection
7
Mupper
High
Side Driver Output
8
Vboot
Bootstrap Pin
Pin Description The drive
The following content is an automatically extracted verbatim text
from the original manufacturer datasheet and is provided for reference purposes only.
View original datasheet text
NCP1393B
Rbo1
Dboot
M1 Cboot
AC
OUTPUT PFC FRONT STAGE
+
VCC Vboot Rt Mupper
Cbulk
Bo
HB
Rbo2 Rf
GND Mlower
M2
NCP1393
Rfstart Rfmax
CSS
Figure 1. Typical Application Example
DC OUTPUT +
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NCP1393B
VDD
S
Q
D
+
Rt
Vref
−
Ct
+ −
Vref
CLK
R
Q
IDT
PFC Delay (100ms)
VCC
VCC
Vref
VDD
PON RESET
VCC Management
VCC Clamp
TSD
− +
+ −
Vreflatch
20ms Filter
Q
S
R
BO SW
+ −
+ −
VrefBO
20ms Filter
Pulse Trigger
Level Shifter
SQ RQ
UV Detect
Vboot Mupper Bridge
Delay
VCC Mlower
Ihyster
Switch SW Open for VBO > VrefBO
GND
Figure 2. Internal Circuit Architecture
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