U2043B-MFPG3Y Atmel, U2043B-MFPG3Y Datasheet - Page 3

• Manufacturer Part Number: U2043B-MFPG3Y
• Description: IC FLASH CONTROL 10W SGL 8SOIC
• Manufacturer: Atmel
• Type: Automotive, Flasherr

Specifications of U2043B-MFPG3Y

• Current - Supply: 7mA
• Current - Output: 100µA
• Voltage - Supply: 9 V ~ 15 V
• Operating Temperature: -40°C ~ 95°C
• Package / Case: 8-SOIC (3.9mm Width)
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Frequency: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

3. Functional Description
3.1
3.2
3.3
3.4
3.5
4720B–AUTO–09/05
GND (Pin 1)
Supply Voltage, V
Relay Control Output (Driver, Pin 3)
Oscillator (Pin 4 and 5)
Supply Voltage, Sense (Pin 6)
f
The integrated circuit is protected against damage via resistor R
battery reversal. An integrated protection circuit together with external resistances R
limits the current pulses in the IC.
The arrangement of the supply connections to pin 2 must be so as to ensure that, on the con-
nection printed circuit board (PCB), the resistance of V
The relay control output is a high-side driver with a low saturation voltage and capable of driving
a typical automotive relay with a minimum coil resistance of 60 .
Flashing frequency, f
page
where
In the case of a lamp outage (see pin 7) the oscillator frequency is switched to the lamp outage
frequency f
Duty cycle in normal flashing mode:
Duty cycle in lamp outage mode:
For accurate monitoring via the shunt resistor, a minimized layer resistance from point V
to pin 6 is recommended.
1
=
S
------------------------------------ - Hz
R
1):
Power (Pin 2)
1
C
2
1
1
with f
1.5
2
1
C
R
2.2
, is determined by the R
1
1
= 6.8 k to 510 k
47 µF
f
1
.
50%
40% (bright phase)
1
C
1
components as follows (see
S
to pin 6 is lower than that to pin 2.
4
to ground (–31) in the case of
U2043B
Figure 1-1 on
2
S
and R
/shunt
3
4