鈥?/div>
High EMC immunity because of common mode inputs
A guard signal in zoom mode
PINNING
SYMBOL
PIN
DESCRIPTION
I
drive(pos)
I
drive(neg)
V
P
V
O(B)
GND
V
FB
V
O(A)
V
O(guard)
V
I(fb)
1
2
3
4
5
6
7
8
9
input power-stage (positive); includes I
I(sb)
signal bias
input power-stage (negative);includes I
I(sb)
signal bias
operating supply voltage
output voltage B
ground
input flyback supply voltage
output voltage A
guard output voltage
input feedback voltage
BLOCK DIAGRAM
1