U641B-FP ATMEL Corporation, U641B-FP Datasheet
U641B-FP
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U641B-FP Summary of contents
Page 1
... Interference Protection According to VDE 0839 or ISO/TR 7637/1 • Load-dump Protected Description The U641B is a bi-polar integrated circuit designed for the wiper application in the automotive market. It includes wipe, wash and internal mode. Functional Description As a convenience feature of the windshield wiper, intermittent and wipe/wash opera- tion functions are implemented in most of the automobiles ...
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... Interval switch 3 CT Timing capacitor After-wiping time resistance 5 WASH Wipe/wash switch 6 PARK Park switch for wiper motor 7 OUT Relay control output 8 VS Supply voltage terminal 15 U641B GND OUT 7 2 INT U641B PARK WASH 4773A–AUTO–11/03 ...
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... After the wiper opera Now the relay switches on and the next interval 3 causes current source A to discharge C , the water pump starts spraying Batt . When the after-wiping time has Time 2 U641B ), current source F 1 immediately 2 is activated. The cur- is activated. The 2 3 ...
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... Figure 3. Application Circuit with Interval and Wipe/Wash Operation Relay S 1 Park switch M Wiper motor U641B µF U641B 2 510 R time Interval switch µ 130 K ...
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... Pin Symbol 8 V Batt tot T stg T amb Symbol R thJA R thJA U641B Value Unit 28 1.5 150 mA 200 mA 1 500 mW °C -55 to +125 °C -40 to +85 Value Unit 120 K/W 160 K ...
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... Switching threshold/ Hysteresis Protection diode Switching Characteristics Interval time R 3 Prewash delay After-wipe-time R 4 U641B 6 Pin 2 300 kW -150 µ 130 kW 5 Symbol Min. Typ. ...
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... int int int Temperature (° µ Batt time R = 130 k time R = 300 k time Temperature (° µ Batt Batt Temperature (°C) U641B 100 100 100 7 ...
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... U641B 8 Figure 7. Interval Pause = f (R INT Figure 8. After-wiping Time = f (T Batt -40 - µ Interval Resistor ( µ Batt time R = 130 k time R = 300 k ...
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... Ordering Information Extended Type Number U641B U641B-FP Package Information Package DIP8 Dimensions in mm Package SO8 Dimensions in mm 4773A–AUTO–11/03 Package Remarks DIP8 – SO8 – 9.8 9.5 1.64 1.44 4.8 max 0.5 min 3.3 0.58 2.54 0.48 7. technical drawings according to DIN specifications 1 4 5.00 4.85 1.4 0.25 0.4 0.10 1.27 3. technical drawings according to DIN specifications ...
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... Fax: (81) 3-3523-7581 Disclaimer: Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard warranty which is detailed in Atmel’s Terms and Conditions located on the Company’s web site. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein ...