U2008B Datasheet, PDF (6/10 Pages) TEMIC Semiconductors – Low Cost Current Feedback Phase Control Circuit

U2008B
Parameters
Reference ramp, figure 4
Charge current
Start voltage
Temperature coefficient of
start voltage
R_ϕ − reference voltage
Temperature coefficient
Pulse output, figure 5
Output pulse current
Output pulse width
Test Conditions / Pins
Pin 7
Pin 2
Pin 2
I _ϕ = 10 mΑ
I _ϕ = 10 mΑ
I _ϕ = 1 mΑ
Pins 6 – 5
Pin 6
Pin 8
V₈ = – 1.2 V
R_GT = 0 W
C₃ = 3.3 nF, V_S = V_limit
Symbol
I_ϕ
–V_max
–TC_R
V_Rϕ
TC_VRϕ
I₀
t_p
Automatic retriggering
Turn-on threshold voltage
Repetition rate
wI₇ 150 mA
Pin 8
"V_ION
t_pp
Soft start, figure 7
Pin 1
Starting current
V_1-4 = 8 V
I₀
Final current
V_1-4 = –2 V
I₀
Discharge current
–I₀
Output current
Pin 3
–I₀
Supply voltage compensation, figure 8
Current transfer gain I₇/I₃
Pins 7, Pin 3
Pins 1 and 2 open
G_i
Reverse current
V_(R6) = V₃ = V₇ = 0
Pin 3
"I_R
Load current detection, V₇ = 0, figure 9
Transfer gain
I₃/V₁
G
Offset current
Input voltage
Input offset voltage
V₁ = 0,V₃ = –8 V
Pin 3
I₀
Pin 1
Pin 1
"–VI
V₀
Min.
1
1.85
0.96
100
20
3
5
15
0.5
0.2
14
0.280
0
300
Typ.
1.95
–0.003
1.02
0.03
0.06
125
30
5
10
25
17
0.320
3
Max.
100
2.05
1.10
150
60
7.5
15
40
2
20
2
0.370
6
400
6
Unit
mA
V
%/K
V
%/K
mA
ms
mV
t_p
mA
mA
mA
mA
mA
mA/mV
mA
mV
mV
6 (10)
TELEFUNKEN Semiconductors
Rev. A1, 28-May-96