U641B-MFPG3Y Atmel, U641B-MFPG3Y Datasheet

IC CONTROL WIPE/WASH DELAY 8SOIC

U641B-MFPG3Y

Manufacturer Part Number
U641B-MFPG3Y
Description
IC CONTROL WIPE/WASH DELAY 8SOIC
Manufacturer
Atmel
Datasheet

Specifications of U641B-MFPG3Y

Applications
Special Purpose
Number Of Outputs
1
Voltage - Supply
9 V ~ 16.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SO-8
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Output
-
Voltage - Load
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
U641B-MFPG3Y
Manufacturer:
ATMEL
Quantity:
1 400
Part Number:
U641B-MFPG3Y
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Features
1. 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.
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. The U641B is a
cost-effective solution for an accurate timing function control. Wipe/wash mode has
priority over interval mode. Interval pause and after-wiping time can be set to fixed val-
ues by using resistors in a broad time range. Added value can be provided with an
individual, continuous adjustment of the interval pause by a potentiometer which may
be built into the stalk. For proper operation, it is mandatory to feed the signal of the
wiper motor's park switch into the U641B.
Interval Pause: 4s to 20s
After-wiping Time: 2s to 20s
Wiper Motor’s Park Switch
0.6s Prewash Delay
Wipe/Wash Mode Priority
One External Capacitor Determines All Time Sequences
Relay Driver with Z-diode
Interference Protection According to VDE 0839 or ISO/TR 7637/1
Load-dump Protected
Interval and
Wipe/Wash
Wiper Control
IC with Delay
U641B
4773C–AUTO–10/07

Related parts for U641B-MFPG3Y

U641B-MFPG3Y Summary of contents

Page 1

... Interference Protection According to VDE 0839 or ISO/TR 7637/1 • Load-dump Protected 1. 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. 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 U641B 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 4773C–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 4773C–AUTO–10/ GND OUT 7 2 INT U641B PARK WASH U641B 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. U641B 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 4773C–AUTO–10/ µF U641B 10V 2 510 R time Interval switch µ 130 K WIWA Water pump U641B 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 U641B 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 600 del t 4.75 5.25 5.75 5 U641B Unit µ ...

Page 8

... Diagrams Figure 8-1. Figure 8-2. Figure 8-3. U641B 8 Interval Pause = f (T µ -40 - Temperature (˚C) After-wiping Time = f (T µ Batt -40 - Temperature (˚C) Prewash Time = f (T µF t 1.0 0.8 0.6 0.4 0.2 0.0 -40 - Temperature (˚ int int int 100 = 8V Batt R = 300 k time R = 130 k ...

Page 9

... Figure 8-4. Figure 8-5. 4773C–AUTO–10/07 Interval Pause = µF INT Interval Resistor (k ) After-wiping Time = f (T µ 16V Batt -40 - Temperature (˚ Batt R = 300 k time R = 130 k time time 100 U641B 9 ...

Page 10

... Ordering Information Extended Type Number U641B-MY U641B-MFPY U641B-MFPG3Y 10. Package Information Package: DIP8 Dimensions in mm 2.54 nom. Drawing-No.: 6.543-5040.01-4 Issue: 1; 16.01.02 U641B 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, Pb-free 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 8-3 “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 U641B 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 ...

Related keywords