AN829 Datasheet, PDF (3/9 Pages) STMicroelectronics – SEMICONDUCTOR KIT FOR

AN829 APPLICATION NOTE
– Can be mounted on the same heatsink as the ISOTOP
– intrinsic diode for controller input protection
– very low parasitic inductance improving signal/noise ratio.
However, the peak current limitation will be affected by the MOSFET thermal characteristic.
DESIGN RULE EXAMPLE
Taking the following operating conditions (see figure 2):
V_{in rms} = 230Vac +10% -15% (f=50Hz)
I_{in rms} = 16Arms
P_out = 3000W
V_out = 400Vdc
or
V_{in rms} = 120Vac +20% -20% (f=60Hz)
I_{in rms} = 15Arms
P_out = 1400W
V_out = 400Vdc
Figure 2. 1500W/3000W PFC Schematic.
J1
1
F1
J7
Lb
TURBOSWITCH DIODE ¹
D1
C1
-
+
1
J2
R20
Dz
STH80N05
R2
R19
D2
C19
ISOTOP
STE30NA50-DK
Q1
R8
R9
C_P
R_GF
R_GN
D_GF
R141 R31
C_O10
to
C
O14
C_O2
to
C_O7
R142 R32
1
J8
R14
R_Z
C_Z
GDRV PGND SGND
R4 IAC
2
8
4
19 9
5 20
1
10
VFEED
14
R71
R16
C71
R72
C72
VRMS
7
R73
L4981
VAOUT
13
R13
C13
VP
3
16
S/FM
6
LFF
11
VREF
17
ROSC
18
COSC
12
SSC
R17
C18
C12
D95IN253A
3/9