NCP1601A Ver la hoja de datos (PDF) - ON Semiconductor
Número de pieza
componentes Descripción
Fabricante
NCP1601A Datasheet PDF : 18 Pages
| |||
NCP1601A, NCP1601B
AC
EMI
Input Filter
15 V
FB VCC
Vcontrol Drv
Ramp GND
CS Osc
NCP1601X
Output
Figure 1. Typical Application Circuit
L
Output Voltage (Vout)
AC
Input
EMI
Filter
Cfilter
RCS
Cbulk
RFB
on
off
IS
IFB
1
FB / SD 9 V
Current
V reg
Mirror
VCC
VCC
RS
VCC(on) / 9 V
96% Iref Iref IFB
8
Regulation Block
18 V
+−
UVLO
Overvoltage
Protection
VCC &
(IFB > 107% Iref)
Shutdown / UVP
Reference
(IFB < 8% Iref)
Block
Zero Current
Internal Bias
Detection
(IS < 14 mA)
CS
4
9V
Current
Mirror
Overcurrent
Protection
(IS > 203 mA)
300 k
Vcontrol Processing
+
9V
−
C1
R1
R2
R3
01
C3
&
− Vton
PFC +
Modulation
Thermal
Shutdown
(95 / 140 °C)
OR
3.9 Vmax
clamp
Ich
1 0 9V
Osc / Sync
5
COSC
9V
45 mA
94 mA
+
−
5 / 3.5 V
01
&
SQ
R
delay
R
SQ
VCC
Output
Driver
Oscillator / Synchronization Block
Vcontrol
2
Ccontrol
Ramp
3
Cramp
Drv
7
GND
6
Figure 2. Functional Block Diagram
http://onsemi.com
2
Share Link: 