Data Sheet

www.onsemi.com
22
FAN3226 / FAN3227 / FAN3228 / FAN3229 — Dual 2-A High-Speed, Low-Side Gate Drivers FAN3226 / FAN3227 / FAN3228 / FAN3229 D l 2 A Hi h Sd L Sid G t D i
Typical Application Diagrams
V
IN
PWM
1
2
3
6
7
8
4
5
Timing/
Isolation
V
OUT
FAN3227
Vbias
V
IN
PWMA
PWMB
1
2
3
6
7
8
4
5
VDD
GND
OUTB
OUTA
FAN3227
Figure 55. Forward Converter
with Synchronous Rectification
Figure 56. Primary-Side Dual Dr ive r
in a Push-Pull Converter
PWM-A
PWM-B
1
3
4
PWM-C
PWM-D
Phase Shift
Controller
FAN3227
FAN3227
V
IN
Vbias
Vbias
1
2
3
6
7
8
4
5
VDDGND
ENBENA
A
B
2
6
7
8
5
VDDGND
ENBENA
A
B
Figure 57. Phase-Shifted Full-Bridge with Two Gate Drive Transformers (Simplified)