U2044B_08 Datasheet, PDF (7/9 Pages) ATMEL Corporation – Dual Output Flasher

U2044B
7. Tolerances
Typical values under normal operation in application circuit Figure 1-1 on page 2, V_S (+30) = 12V.
Reference point ground (–31), T_amb = 25°C, unless otherwise specified
Parameters
Test Conditions
Symbol
Min.
Typ.
Max.
Unit
Frequency determining resistor
R₁
6.8
Frequency determining capacitor
C₁
Frequency tolerance
Normal flashing, basic frequency f₁ not
including the tolerance of the external
∆f₁
–5
components R₁ and C₁
Bright period
Basic frequency f₁
Control frequency f₂
∆f₁
47
∆f₂
37
Frequency increase
Lamp failure
f₂
2.15 × f₁
Lamp load
P_L
1
510
kΩ
47
µF
+5
%
53
%
45
%
2.3 × f₁
Hz
W
8. Ordering Information
Extended Type Number
U2044B-MFPY
U2044B-MFPG3Y
Package
SO14
SO14
Remarks
Tubed, Pb-free
Taped and reeled, Pb-free
9. Package Information
Package SO14
5.2
Dimensions in mm
4.8
8.75
3.7
0.4
1.27
7.62
1.4
0.25
0.2
0.10
3.8
6.15
5.85
14
8
technical drawings
according to DIN
specifications
1
7
7
4721C–AUTO–02/08