U2010B_10 Datasheet, PDF (15/18 Pages) ATMEL Corporation – Programmable Load-current Limitation with Over- and High-load Output

U2010B
Figure 7-15. Application Circuit
230V ~
L
Load
18 kΩ/2W
D1
R1
470 kΩ ^R8 αmax
R2
330 kΩ
1 MΩ
α_max
R9
Limiting
detector
15
Voltage
detector
14
13
Overload
Mains voltage
compensation
D3
LED
12
High load
V_S
11
Supply ¹⁰
voltage _GND
C1
22 µF ⁺
Automatic
retriggering
R3
16
180Ω
Current
detector
R4
1
3.3 kΩ
Load
current
detector
2
R6
V_(R6) = ± 250 mV
R5
3.3 kΩ
N
100% 70%
A
α_max
Phase
Output
B₉
A
Programmable Auto-
B
control unit
-
12
+
ϕ = f(V₄)
Full wave
rectifier
overload
protection
start
C
I_max
S_{1 C}
R12
220 kΩ
Voltage
monitoring
U2010B
Level
shift
Soft Reference
start
voltage
T1
3
4
5
6
7
8
D2
C3
10 nF
0.1 µF
C5
C4
0.15 µF
R10
Load current
compensation
100 kΩ
R11
1 MΩ
+ C2
4.7 µF
Overload
threshold
R14 P1
R7
8.2 kΩ
50 kΩ
Set point
C7
+ _{1 µF}
1N4148
C6
1 µF ⁺
R13
100 kΩ
15
4766C–INDCO–04/10