U6043B-FP ATMEL Corporation, U6043B-FP Datasheet - Page 5

• Manufacturer Part Number: U6043B-FP
• Description: FLASHER IC WITH 19-M SHUNT
• Manufacturer: ATMEL Corporation

Pin 8, Start Input
Absolute Maximum Ratings
Reference point Pin 1
Thermal Resistance
4726A–AUTO–06/03
Parameters
Supply voltage
Surge Forward Current
t
t
t
Output current
Power Dissipation
T
T
Junction temperature
Ambient temperature range
Storage temperature range
Parameters
Junction ambient
P
P
P
amb
amb
= 300 ms
= 0.1 ms
= 300 ms
= 95°C
= 60°C
Pin 2 and 6
Pin 2 and 6
Pin 2 and 6
Pin 8
Pin 3
DIP 8
SO8
DIP 8
SO8
DIP8
SO8
Start condition for flashing: the voltage at Pin 8 has to be below the K3 threshold (flasher
switch closed).
Humidity and dirt may decrease the resistance between 49 a and GND. If this leakage
resistance is > 5 k W , the IC is still kept in the off-condition. In this case the voltage at
Pin 8 is between the thresholds of comparators K2 and K3.
During the bright phase the voltage at Pin 8 is above the K2 threshold, during the dark
phase it is below the K3 threshold. For proper start conditions a minimum lamp wattage
of 1 W is required.
Symbol
Symbol
R
R
T
I
I
I
T
P
P
P
P
FSM
FSM
FSM
V
T
I
amb
thJA
thJA
stg
O
tot
tot
tot
tot
S
J
-55 to +150
-40 to +95
Value
Value
16.5
420
340
690
560
150
110
160
1.5
1.0
0.3
50
U6043B
Unit
Unit
K/W
K/W
mW
mW
mW
mW
mA
°C
°C
°C
V
A
A
A
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