U2008B_07 Datasheet, PDF (7/13 Pages) ATMEL Corporation – Low-cost Phase-control IC with Soft Start

U2008B
5. Electrical Characteristics (Continued)
Parameters
Test Conditions
Temperature coefficient of start
voltage
Pin 2
R_ϕ - reference voltage
I_ϕ = 10 µA, Pins 6 to 5
Temperature coefficient
I_ϕ = 10 µA, Pin 6
I_ϕ = 1 µA
Pulse Output (see Figure 5-2 on page 8) (Pin 8)
Output-pulse current
Output-pulse width
Automatic Retriggering (Pin 8)
V₈ = -1.2, R_GT = 0 Ω
C₃ = 3.3 nF, V_S = V_limit
Turn-on threshold voltage
Repetition rate
I₇ ≥ 150 µA
Soft Start (see Figure 5-4 on page 8) (Pin 1)
Starting current
Final current
Discharge current
V_1–4 = 8 V
V_1–4 = -2 V
Output current
Pin 3
Mains Voltage Compensation (see Figure 5-5 on page 9)
Current transfer gain I₇/I₃
Pins 7, Pin 3
Pins 1 and 2 open
Reverse current
V_(R6) = V₃ = V₇ = 0, Pin 3
Load-current Detection, V₇ = 0 (see Figure 5-7 on page 9)
Transfer gain
I₃/V₁
Offset current
V₁ = 0, V₃ = -8 V, Pin 3
Input voltage
Pin 1
Input offset voltage
Pin 1
Symbol
-TC_R
V_Rϕ
TC_VRϕ
TC_VRϕ
I₀
t_p
±V_ION
t_pp
I₀
I₀
-I₀
-I₀
Min.
0.96
Typ.
-0.003
1.02
0.03
0.06
Max.
1.10
100
125
150
30
20
60
3
5
7.5
5
10
15
15
25
40
0.5
0.2
2
Unit
%/K
V
%/K
%/K
mA
µs
mV
t_p
µA
µA
mA
mA
G_i
14
17
20
±I_R
2
µA
G
0.28
0.32
0.37 µA/mV
I₀
0
3
6
µA
-V_I
300
400
mV
±V₀
6
mV
Figure 5-1. Ramp Control
250
200 _{33 nF 10 nF 6.8 nF 4.7 nF 3.3 nF}
150
100
2.2 nF
C_ϕ/t = 1.5 nF
50
0
0
200
400
600
800
1000
R_ϕ(R₈) (kΩ)
7
4712C–AUTO–07/07