ALTAIR05T-800 Datasheet, PDF (23/28 Pages) STMicroelectronics – Off-line all-primary-sensing switching regulator

ALTAIR05T-800
6
Typical application
Typical application
Figure 21. Test board schematic: 5 W wide range mains CC/CV battery charger
AC IN
R1
22
1W
AC IN
BR
MB6S- RC
L1
470uH
C1
4.7uF
400V
R3
4 7K
C2
4. 7uF
400V
T1
C3
R2
1nF
120K
D7
S TTH1L 06
D7
STPS3L40U F
R9
2. 2k
D2
R4
5V - 1A
C9
680uF
Low ESR
GN D
R5
TBD
R6
10 K
CD C
BAT46
10
C4
10uF
U1
ALTAIR 05
VDD
D RAI N
2. 5V +
-
F B/ ZC D
C UR R ENT
C ON TR OL
C O MP
IR EF
GN D SOU R CE
C5
470nF
C7
C6
4. 7nF
R8
1nF
R7
1.2
10k
C 10
2 .2nF - Y Cap
T1 SPECIFICATION
Supplier: MAGNETICA
Core E16/8/5, f er rite N67
Gap: 0.18mm for 2.2mH primary inductance
Lleakage max= 88uH
Pr imar y: 125T, AWG34
Auxiliar y: 25T, AWG34
Secondary: 9T, 0.50 Tex-E
Table 5. Efficiency at 115 V_AC
Load [%]
I_OUT[A]
V_OUT[V]
25
0.25
4.97
50
0.5
4.97
75
0.75
4.97
100
1
4.98
Average efficiency
P_OUT[W]
1.243
2.485
3.728
4.980
P_IN[W]
1.643
3.156
4.72
6.4
Efficiency [%]
75.62
78.64
78.97
77.81
77.79
Table 6. Efficiency at 230 V_AC
Load [%]
I_OUT[A]
V_OUT[V]
25
0.25
4.98
50
0.5
4.97
75
0.75
4.98
100
1
4.99
Average efficiency
P_OUT[W]
1.245
2.485
3.735
4.990
P_IN[W]
1.88
3.349
4.838
6.326
Efficiency [%]
66.22
74.18
77.22
78.88
74.12
Doc ID 17957 Rev 1
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