U2044B-MFPG3Y Atmel, U2044B-MFPG3Y Datasheet
U2044B-MFPG3Y
Specifications of U2044B-MFPG3Y
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U2044B-MFPG3Y Summary of contents
Page 1
... The separate hazard warning input simplifies the construction of the hazard switch. Lamp outage is indicated by frequency doubling during direction mode. Thanks to extreme low current consumption the U2044B can be directly connected to the battery. 1W Dual Output ...
Page 2
... Figure 1-1. Block Diagram C 1 4.7 µ -6V S U2044B Ref1 + - - V + Ref2 - + 27. GND 220 Hazard warning Relay 4 1 Shunt - Contact 4 right left 12700 4721C–AUTO–02/08 ...
Page 3
... CR1 Control input relay 1 7 CR2 Control input relay Lamp failure detection GND IC ground 11 OR1 Output relay OR2 Output relay 2 14 OSC Oscillator 4721C–AUTO–02/08 OSC 1 14 OSC SIL 2 13 OR2 SIR SIHW U2044B OR1 GND 6 9 CR1 CR2 LD U2044B 3 ...
Page 4
... Supply Voltage Sense (Pin 5) This pin supplies the lamp outage comparator at pin 8 and is externally connected to the battery (Kl 30). 3.5 Control Input Relay 1 and 2 (Pin 6 and 7) The feedback detects the bright phase and the dark phase and enables the oscillator. U2044B determined by the ...
Page 5
... An integrated protection circuit together with external resistors and R limits the current pulses in the IC. The IC is also protected against reversed and an internal comparator, Shunt = 12V). The outage of one lamp out of two 1.75A lamp = 12V 3.5A lamp U2044B 2.7A outage 2, 5 ...
Page 6
... Output current for relay driver Saturation voltage Relay output reverse current Relay coil resistance Start delay Control signal threshold Tolerance of control signal threshold Temperature coefficient of control signal threshold Clamping voltage Relay output overvoltage detection (relay disabled) U2044B 6 Symbol amb T stg Symbol ...
Page 7
... Parameters Frequency determining resistor Frequency determining capacitor Frequency tolerance Bright period Frequency increase Lamp load 8. Ordering Information Extended Type Number U2044B-MFPY U2044B-MFPG3Y 9. Package Information Package SO14 Dimensions in mm 4721C–AUTO–02/08 Figure 1-1 on page Test Conditions Normal flashing, basic frequency f not 1 ...
Page 8
... Revision History Please note that the following page numbers referred to in this section refer to the specific revision mentioned, not to this document. Revision No. 4721C-AUTO-02/08 4721B-AUTO-09/05 U2044B 8 History Put datasheet in the newest template Pb-free logo on page 1 deleted Figure title Figure 2-1 on page 3 renamed Section 5 “ ...
Page 9
... Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDI- TIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ...