U642B TEMIC | Alldatasheet
Document overview
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Technical content
Features
/C0068Interval pause: 4 to 20 s /C0068Afterwiping time: 2 to 20 s /C0068Wiper motor’s park switch /C0068Wipe/wash mode priority /C0068One external capacitor, determines all time sequences /C0068Relay driver with Z-diode /C0068Interference protection according to VDE 0839 or ISO/TR 7637/1 /C0068Load-dump protected
Ordering Information
Extended Type Number Package Remarks U642B DIP8 U642B–FP SO8 Block Diagram Wipe / wash comparator Interval comparator Load-dump comparator VRef VRef VRef Input comparator Park switch comparator VRef 8 7 6 5 41 23 ABC DEF Logic VS Relay control S1 WI WA Timing (R)GND Interval switch Timing (C2) 94 8950 Figure 1. Block diagram
1 GND Ground
2 Input 1 Interval switch
4 R 4 Afterwiping time resistance
5 WIWA Wipe/Wash switch
6 S1 Park switch for wiper motor
7 RELAY Relay control output
Figure 2. Pinning till the voltage at Pin 3 is below the threshold of 2 V .
- Now the relay switches ON and
sources C and F are switched-OFF. on as long as the switch ”WIWA” is closed. because the capacitor is already charged to a value of 2 V .
Figure 3. Application circuit with interval and wipe/wash operation
Rev. A1, 13-Feb-97 4 (6) Thermal Resistance Parameters Symbol Value Unit Junction ambient DIP8 SO8 R thJA R thJA 110 160 K/W K/W
Electrical Characteristics
V Batt = 12 V , Tamb = 25°C, (see figure KEIN MERKER) unless otherwise specified. Parameters Test Conditions / Pins Symbol Min. Typ. Max. Unit Supply voltage Pin 8 V Batt 9 16.5 V Supply current I8 10 mA Z-diode limitation V 2 –7.6 V Overvoltage Threshold current I1 –50 mA Threshold voltage V Batt 35 V Relay control output Pin 7 Saturation voltage I7 = 100 mA I7 = 200 mA V 7 –1.0 –1.5 V Reverse current I7 –0.1 mA Park switch Pin 6 Internal pull-up resistanceR 6 = 10 k/C0087 R 6 50 k/C0087 Switching threshold voltage V 6 –3.3 V Protection diode I6 = –10 mA I6 = 10 mA V 6 V 6 –0.8 7.6 V V Input C2 Pin 3 Internal resistance R 3 100 /C0087 Interval input, R2 = 2.7 to 30 k/C0087 Pin 2 Protection diode I2 = –10 mA I2 = 30 mA/10 ms V 2 –0.8 7.6 V WIW A Input, R5 = 10 k/C0087 Pin 5 Switching threshold/ Hysteresis V 5 –1.4/–5.4 V Protection diode I5 = –10 mA I5 = 10 mA V –0.8 7.6 V Switching Characteristics, R 4 = 47 k/C0087 to 300 k/C0087, I4 = –150 /C0109A Interval time R 3 = 0 k/C0087 R 3 = 10 k/C0087 t2 3.6 10.8 4.4 13.2 s Switch-ON time ton 100 ms After-wipe-time R 4 = 130 k/C0087 Pin 5 t5 4.75 5.25 5.75 s
Rev. A1, 13-Feb-97 5 (6)
Package Information
9.8 9.5 Dimensions in mm 1.64 1.44 4.8 max 0.5 min 3.3 0.58 0.48 7.62 2.54 6.4 max 0.36 max 9.8 8.2 7.77 7.47 technical drawings according to DIN specifications 13034 technical drawings according to DIN specifications Dimensions in mm 5.00 4.85 0.4 1.27 3.81 1.4 0.25 0.10 5.2 4.8 3.7 3.8 6.15 5.85 0.2
Rev. A1, 13-Feb-97 6 (6) Ozone Depleting Substances Policy Statement It is the policy of TEMIC TELEFUNKEN microelectronic GmbH to 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances (ODSs). The Montreal Protocol (1987) and its London Amendments (1990) intend to severely restrict the use of ODSs and forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban on these substances. TEMIC TELEFUNKEN microelectronic GmbH semiconductor division has been able to use its policy of continuous improvements to eliminate the use of ODSs listed in the following documents. 1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively 2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental Protection Agency (EPA) in the USA 3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively. TEMIC can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. We reserve the right to make changes to improve technical design and may do so without further notice. Parameters can vary in different applications. All operating parameters must be validated for each customer application by the customer. Should the buyer use TEMIC products for any unintended or unauthorized application, the buyer shall indemnify TEMIC against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use. TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 (0)7131 67 2831, Fax number: 49 (0)7131 67 2423