NCP5304
Vbulk
+
C1
GND
D4
Vcc
NCP1395
GND
GND
C3
GND
1
2
3
4
U1
IN_LO VBOOT
IN_HI DRV_HI
Vcc Bridge
GND DRV_LO
NCP5304
8
7
6
5
C4
Q2
Q1
Lf
C6
T1
D1
D2
L1
+
Out+
C3
Out ?
GND
D3
R1
GND
U2
Figure 1. Typical Application Resonant Converter (LLC type)
Vbulk
+
C1
GND
D4
C5
Vcc
NCP1395
GND
GND
C3
GND
1
2
3
4
U1
IN_LO VBOOT
IN_HI DRV_HI
Vcc Bridge
GND DRV_LO
NCP5304
8
7
6
5
C4
Q2
Q1
C6
T1
D1
D2
L1
+
Out+
C3
Out ?
GND
D3
R1
GND
U2
Figure 2. Typical Application Half Bridge Converter
VCC
VCC
UV
DETECT
VBOOT
IN_HI
PULSE
TRIGGER
LEVEL
SHIFTER
S Q
R Q
DRV_HI
GND
CROSS
CONDUCTION
PREVENTION
GND
UV
DETECT
VCC
BRIDGE
IN_LO
GND
DELAY
Figure 3. Detailed Block Diagram
http://onsemi.com
2
GND
DRV_LO
GND
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