U642B-MFPY Atmel, U642B-MFPY Datasheet
U642B-MFPY
Specifications of U642B-MFPY
Available stocks
Related parts for U642B-MFPY
U642B-MFPY Summary of contents
Page 1
... Interference Protection According to VDE 0839 or ISO/TR 7637/1 • Load-dump Protected 1. Description The U642B is a bi-polar integrated circuit designed for the wiper application in the automotive market. It includes wipe, wash and internal mode. 2. Functional Description As a convenience feature of the windshield wiper, intermittent and wipe/wash opera- tion functions are implemented in most of the automobiles ...
Page 2
... Figure 2-1. Block Diagram GND U642B 2 PARK OUT Ref Park switch Load-dump comparator comparator V Ref Logic V Ref Interval comparator INT t WASH 5 V Ref Input comparator Wipe/wash comparator 4774C–AUTO–10/07 ...
Page 3
... Symbol Function 1 GND Ground 2 INT 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 4774C–AUTO–10/ GND OUT 7 2 INT U642B PARK WASH U642B 3 ...
Page 4
... Interval wiping starts immediately when the after-wipe time is over. The switching delays are slightly shorter, because the capacitor is already charged to a value of 2V. The wipe/wash function is not interrupted when the interval switch S function begins after the WIWA function has elapsed. U642B supply voltage very quickly ...
Page 5
... Figure 4-1. Application Circuit with Interval and Wipe/Wash Operation Relay S 1 Park switch M Wiper motor 4774C–AUTO–10/ µF U642B 10V 2 510 R time Interval switch µ 130 K WIWA Water pump U642B 5 ...
Page 6
... Supply current 200 ms Relay control output current (DC 200 ms Pulse Current (Control Inputs 200 ms Park switch Wipe/Wash switch Interval switch Power dissipation T = 90°C amb Storage temperature range Ambient temperature range 6. Thermal Resistance Parameters DIP8 Junction ambient SO8 U642B 6 Pin Symbol 8 V Batt ...
Page 7
... Pin 2 300 –150 µ 130 k 5 Symbol Min. Typ. Max 16.5 Batt 7 – Batt –1 –1.5 I 100 –3 –0 7 100 3 –0 7.6 –1. –5.4 –0.8 V 7.6 3 10.8 12 13.2 t 100 del t 4.75 5.25 5.75 5 U642B Unit µ ...
Page 8
... Diagrams Figure 8-1. Figure 8-2. Figure 8-3. U642B 8 Interval Pause = f (T µ -40 - Temperature (˚C) After-wiping Time = f (T µ Batt -40 - Temperature (˚C) Interval Pause = µF INT Interval Resistor ( int int int 100 = 8V Batt R = 300 k time R = 130 k time time 100 4774C–AUTO–10/07 ...
Page 9
... Figure 8-4. 4774C–AUTO–10/07 After-wiping Time = f (T µ 16V Batt -40 - Temperature (˚C) U642B = 16V Batt R = 300 k time R = 130 k time time 100 9 ...
Page 10
... Ordering Information Extended Type Number U642B-MY U642B-MFPY U642B-MFPG3Y 10. Package Information Package: DIP8 Dimensions in mm 2.54 nom. Drawing-No.: 6.543-5040.01-4 Issue: 1; 16.01.02 U642B 10 Package DIP8 SO8 SO8 9.8 max. 9.6 ±0.1 1.2 ±0.3 0.53 ±0. 2.54 = 7.62 nom. B 1.54 0. Remarks Pb-free Tubed, Pb-free Taped and reeled 7 ...
Page 11
... Put datasheet in a new template Pb-free logo on page 1 deleted Figure 8-1 “Interval Pause = f (T); C Figure 8-2 “After-wiping Time = f (T); C Figure 8-4 “After-wiping Time = f (T); C changed Put datasheet in a new template Pb-free logo on page 1 added Ordering Information on page 10 changed U642B 5 ±0.2 3.7 ±0.1 3.8 ±0.1 6 ±0.2 ...
Page 12
... 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 ...