UNISONIC TECHNOLOGIES CO., LTD UU642 LINEAR INTEGRATED CIRCUIT INTERVAL AND WIPE/WASH WIPER CONTROL IC DESCRIPTION The bipolar integrated circuit UTC UU642 is designed as a wiper for automotive application. It includes wipe, wash and internal mode. The UTC UU642 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 values 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 UTC UU642. FEATURES * After-wiping time: 2s~20s * Interval pause: 4s~20s * Wipe/wash mode priority * Wiper motor’s park switch * Relay driver with Z-diode * One external capacitor determines all time sequences * Interference protection according to VDE 0839 or ISO/TR 637/1 * Load-dump protected ORDERING INFORMATION Ordering Number Lead Free UU642L-D08-T UU642L-S08-R Halogen Free UU642G-D08-T UU642G-S08-R Package Packing DIP-8 SOP-8 Tube Tape Reel UU642L-D08-T (1)Packing Type (1) T: Tube, R: Tape Reel (2)Package Type (2) D08: DIP-8, S08: SOP-8 (3)Halogen Free (3) L: Lead Free, G: Halogen Free www.unisonic.com.tw Copyright © 2014 Unisonic Technologies Co., Ltd 1 of 6 QW-R121-023.B UU642 LINEAR INTEGRATED CIRCUIT MARKING INFORMATION PACKAGE MARKING SOP-8 DIP-8 PIN CONFIGURATION GND 1 8 VS INT 2 7 OUT CT 3 6 PARK RT 4 5 WASH PIN DESCRIPTION PIN NO. 1 2 3 4 5 6 7 8 PIN NAME GND INT CT RT WASH PARK OUT VS DESCRIPTION Ground Interval switch Timing capacitor C2 After-wiping time resistance Wipe/wash switch Park switch for wiper motor Relay control output Supply voltage terminal 15 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 6 QW-R121-023.B UU642 LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM VS 8 OUT 7 PARK 6 WASH 5 VRef VRef Park switch comparator VRef Input comparator Load-dump comparator Logic Wipe/wash comparator VRef Interval comparator 1 GND A B 2 INT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw C D 3 Ct E F 4 Rt 3 of 6 QW-R121-023.B UU642 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATING PARAMETER Supply Voltage t=60s, Terminal 15 SYMBOL VBatt t=2ms t=200ms Supply Current I8 RATINGS 28 1.5 150 200 1.2 UNIT V A mA mA A RATINGS 120 160 UNIT K/W K/W Relay Control Output Current (DC) I7 Relay Control Output Current (DC) t=200ms Pulse Current (Control Inputs) t=200ms Park Switch, S1 I6 50 mA Wipe/Wash Switch, S3 I5 50 mA Interval Switch, S2 I2 50 mA Power Dissipation TAMB=90°C PD 500 mW Ambient Temperature Range TA -40~+85 °C Storage Temperature Range TSTG -55~+125 °C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. THERMAL RESISTANCE PARAMETER Junction to Ambient SYMBOL DIP-8 SOP-8 θJA ELECTRICAL CHARACTERISTICS (VBatt=12V, TA=25°C, reference point is pin 8, unless otherwise specified.) PARAMETER SYMBOL TEST CONDITIONS Supply Voltage VBatt Supply Current I8 Z-Diode Limitation V1 Overvoltage Threshold Current I1 Threshold Voltage VBatt Relay Control Output I7=100mA Saturation Voltage V7 I7=200mA Leakage Current I7 Park Switch Internal Pull-Up Resistance R6 R6=10kΩ Switching Threshold Voltage V6 I6=-10mA Protection Diode V6 I6=10mA Input Ct Internal Resistance R3 Interval Input R2=2.7~30kΩ I2=-10mA Protection Diode V2 I2=30mA/10ms WASH Input R5=10kΩ Switching Threshold/Hysteresis V5 I5=-10mA Protection Diode V I5=10mA Switching Characteristics R4=47kΩ~300kΩ, I4=-150μA R3=0kΩ Interval Time t2 R3=10kΩ Prewash Delay tdel After-Wipe-Time t5 R4=130kΩ UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 9 TYP MAX 16.5 9 7.6 UNIT V mA V -50 37 mA V -1.0 -1.5 100 V V μA 41 -3.1 -0.8 7.6 kΩ V V V 100 Ω -0.8 7.6 V V -1.1/-7.1 -0.87 8.7 V V V 3.45 10.8 80 4.7 s s ms s 4 of 6 QW-R121-023.B UU642 LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT R6 10kΩ R5 10kΩ 8 6 7 UTC UU642 Relay C1 47µF 10V 2 1 3 4 R1 C2 22µF R4 510Ω Rtime=130kΩ R2 2.7kΩ R3 S1 Park switch 5 10kΩ S2 WIWA M M S3 Wiper motor Interval switch UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw Water pump 31 15 5 of 6 QW-R121-023.B UU642 LINEAR INTEGRATED CIRCUIT TYPICAL CHARACTERISTICS Interval Time (R3=0Ω) Interval time (R3=10KΩ) CH1 CH2 CH2 CH1: 2V/div CH2: 2Vdiv CH1: 2V/div CH2: 2Vdiv CH1 0 0 0 5 Time (1s/div) 10 0 Prewash Delay 20 After Wipe Time CH2 CH2 CH1: CH2: 5V/div 5Vdiv CH1 CH1: CH2: 5V/div 5Vdiv 10 Time (2s/div) 0 0 CH1 0 0 0 100 Time (20ms/div) 200 0 5 Time (1s/div) 10 UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 6 QW-R121-023.B