U2044B Datasheet, PDF (6/8 Pages) TEMIC Semiconductors – Dual Output Flasher

Electrical Characteristics (Continued)
Typical values under normal operation in application circuit Figure 1, V_S (+30) = 12 V.
Reference point ground (-31), T_amb = 25°C, unless otherwise specified
Parameters
Test Conditions
Symbol
Min.
Typ.
Max.
Unit
Control signal threshold
Tolerance of control signal threshold
Temperature coefficient of control
signal threshold
V_S = 9 V
V_S = 13.5 V
V_S = 16 V
V_S = 9 V to 16 V, pin 8,
T_amb = -140°C to 100°C
V_S = 13.5 V, pin 8
V_S
70.6
mV
V_S
85.0
mV
V_S
93.0
mV
-6
+6
%
T_K
10
µV/K
Clamping voltage
Relay output overvoltage detection
(relay disabled)
T_amb = -40°C to 100°C
T_amb = -40°C to 100°C
V₁₂
25.0 27.5 30.0
V
V₁₂
18
20
22
V
Tolerances
Typical values under normal operation in application circuit Figure 1, V_S (+30) = 12 V.
Reference point ground (-31), T_amb = 25°C, unless otherwise specified
Parameters
Test Conditions
Symbol
Min.
Typ.
Max.
Unit
Frequency determining resistor
Frequency determining capacitor
Frequency tolerance
Bright period
Frequency increase
Lamp load
Normal flashing, basic frequency f₁
not including the tolerance of the
external components R₁ and C₁
Basic frequency f₁
Control frequency f₂
Lamp failure
R₁
6.8
C₁
Df₁
-5
Df₁
47
Df₂
37
f₂
2.15 ´
f₁
P_L
1
510
kW
47
µF
+5
%
53
%
45
%
2.3 ´
f₁
Hz
W
6 U2044B
4721A–AUTO–05/03