an8038 Panasonic Corporation of North America, an8038 Datasheet - Page 8

• Manufacturer Part Number: an8038
• Description: Ac-dc Switching Power Supply Control Ic With Rcc Local Resonance Circuit For Improved Conformance With Energy Conservation Laws
• Manufacturer: Panasonic Corporation of North America

AN8038, AN8038S
8
[1] Timing charts
Application Notes
(A) Bias winding voltage
(B) TR pin voltage
(C) CF pin voltage
(D) Out pin voltage
Winding current
Circuit diagram
Normal control waveforms
Can be modified
with an external
resistor.
V
CC
(F) Secondary
winding current
V
4.2 V
1.5 V
RSTB
CLM
0 V
0 V
0 V
0 V
0 A
Heavy
(B)
Off
Off
(C)
(E) Primary
winding current
V
Out
CC
Input voltage correction
E
Continuous (RCC) mode
IN
On
On
: large, t
ON
(D)
: short
Off
Off
Load
On
On
(G)
(A)
(E)
Off
Off
Discontinuous mode
Voltage Regulators
I
V
FB
(F)
FB
On
On
correction
: large, t
t
during t
ON
cannot be accepted
Off
Off
Light
OFF(min)
OFF(min).
V
FB
: long
voltage