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| YT5166 PRODUCT SPECIFICATION V 2.0 Ref: QB-PT003 DESCRIPTION The YT5166 is a semiconductor integrated circuit for use in servo motor in radio control applications. The built-in voltage regulating circuit, and the differential comparator used in the comparator circuit provide the YT5166 with extremely stable power supply voltage fluctuation characteristics and temperature change characteristics. FEATURES l l l l l Small circuit current: 5 mA (When output is off) Simple setting of dead band Supply voltage range: 3.5-6.5V Operating temperature: -20ae +75ae Includes protection circuit for continuous high level input l Logic inputs CMOS/TTL compatible FUNCTION When a peripheral PNP transistor is connected to YT5166, a direct current pulse-duration modulation circuit is completed. When the control input PIN2 (IN) input an adjustable pulse of 20ms cycle and 1.0-2.0ms pulse-duration, the bridge PWM circuit will input accordingly a forward-backward ORDERING INFORMATION Model YT5166 Package DIP14 DIE Temperature Range(ae ) -20 - +75 -20 - +75 reversible driving voltage. Taking 1.5ms input pulse-duration as balance, the transistor of bridge circuit output a symmetrical voltage of PIN CONFIGURATION approximately 2.6v and the average voltage on load will be zero. When output pulse duration is increased (decreased), one side (or the other side) of the bridge circuit is turned on. The period of turning on is the direct ratio with the difference between input pulse-duration and balance point (1.5ms). When pulse-duration is 2.0ms, load voltage is close to +Vcc. When pulse-duration is 1.0ms, load voltage is close to -Vcc. When input pulse-duration is balance (1.5ms) and output is not balance, adjust voltage of PIN11 to balance. With this characteristic, the bridge circuit could drive a mechanical position sensor (adjustable resistor) and form a position loop to build up a position controller. 1 I/NCI1/4EcA*1/41/4EoOIE3/4 Xi' Swip Co.,Ltd an Http://www.swip.com.cn Email: market@swip.com.cn Tel: 86-29-8386383 Fax: 86-29-8386287 www..com www..com www..com YT5166 PIN DESCRIPTION Pin Number PIN1 PIN2 PIN3 PIN4 PIN5 PIN6 PIN7 PIN8 PIN9 PIN10 PIN Symbol PNPDR1 IN OUT1 GND DDBAND OUT2 PULSTR PNPDR2 REGOUT VCC I O I O O I/O O I O Pin Description and (or) Function Connect to the base of the external PNP transistor. Operate with a positive pulse of peak value 3V or greater. Normative cycle T=20ms, pulse-duration 1.0-2.0ms adjustable. Connect a feedback resistor of stated 560kO between PIN3 and PIN13 Ground Connect a resistor between PIN5 and PIN7. The dead band will change according to the value of this resistor. The range of the resister is 2-20kO Connect to the collector of the external PNP transistor. Connect the capacitor and resistor to stretch the pulse; Connect a resistor of 220k* to PIN9. Connect to the base of the external PNP transistor. Regulate the output of internal supply voltage; Connect a capacitor of approximately 2.2uF for increasing the circuit stability. The supply voltage exhibits uniform characteristics from 3.5V to 6.5V. Connect the middle of the potentiometer to adjust internal comparator PIN11 POSFEB I input voltage. Compare this voltage with the voltage of the triangular wave to adjust balance. Connect a capacitor for the noise prevention. PIN12 NULL Null Connect a capacitor that will generate a triangular wave by constant PIN13 TIMECAP O current. A typical value is 0.1uF. Must use CBB or NPO capacitor with high temperature tolerance; Connect a resistor from the OUT1. Connect a resistor that will determine that value of the current of PIN13. A PIN14 TIMRES O resistor of 18k will yield a current of 1.0mA. A capacitor of approximately 0.1uF should be connected in parallel with the resistor to increase stability. *When the dead band resister connected between PIN5 and PIN7 is high value external resister of PIN7 the should be increased accordingly; So that the output pulse of PIN1 and PIN8 have enough duration. Example: When RDB1/2 10K RS1/2 330K When RDB=20K RS=430K ABSOLUTE MAXIMUM RATING TA=25ae (c) Symbol Vcc Io SINK Io SOURCE pdF K? Topr Tstg Description Circuit voltage Output sink current Output source current Power dissipation Thermal derating range Operating temperature Storage temperature range 2 VI=5V Ta = 25ae Test Conditions 7.0 500 200 550 5.5 -20- +75 -40-+125 Value V mA mA mA mW/ae ae ae Unit I/NCI1/4EcA*1/41/4EoOIE3/4 Xi' Swip Co.,Ltd an Http://www.swip.com.cn Email: market@swip.com.cn Tel: 86-29-8386383 Fax: 86-29-8386287 YT5166 ELECTRICAL CHARACTERISTICS TA=25ae Vcc=4.8V(c) , Pin No. PIN10 PIN10 PIN9 PIN9 Symbol Vcc Icc Vreg Ireg Parameter Supply voltage Operating voltage Reference voltage Reference voltage output current Min. dead band width Input current RDB=2K CS=0.1uF 1 Non-operating Operating 2.3 Test conditions Min. 3.5 Range Typ. 5 3.5 20 2.55 2.8 3.0 Max. 6.5 5 V mA V mA Unit PIN2 PIN2 Tdb Ii 20 us mA BLOCK DIAGRAM TYPICAL APPLICATION CIRCUIT 3 I/NCI1/4EcA*1/41/4EoOIE3/4 Xi' Swip Co.,Ltd an Http://www.swip.com.cn Email: market@swip.com.cn Tel: 86-29-8386383 Fax: 86-29-8386287 YT5166 PACKAGE OUTLINE DIMENSIONS Symbol A A1 A2 B B1 C D E E1 e L E2 Dimensions in Millimeters MIN 3.710 0.510 3.200 0.360 1.524(TYP) 0.204 18.800 6.200 7.620(TYP) 2.540(TYP) 3.000 8.200 3.600 9.400 0.360 19.200 6.600 3.600 0.560 MAX 4.310 Dimensions in Inches MIN 0.146 0.020 0.126 0.014 0.060(TYP) 0.008 0.740 0.244 0.300(TYP) 0.100(TYP) 0.118 0.323 0.142 0.370 0.014 0.756 0.260 0.142 0.022 MAX 0.170 *Chip size: 3.31*2.20mm. 4 I/NCI1/4EcA*1/41/4EoOIE3/4 Xi' Swip Co.,Ltd an Http://www.swip.com.cn Email: market@swip.com.cn Tel: 86-29-8386383 Fax: 86-29-8386287 YT5166 WAVE DIAGRAM 1. 2. 3. 4. PIN2 is a square wave with adjustable cycle duty. The supply voltage is 4.8V The voltage of PIN9 is 2.3-2.8v, typically 2.55v Connect a resistor between PIN3 & PIN6 to make the output current 100mA. (Or connect a motor. The turning direction and speed of the motor will be changed according to the cycle duty of the input voltage.) 5 I/NCI1/4EcA*1/41/4EoOIE3/4 Xi' Swip Co.,Ltd an Http://www.swip.com.cn Email: market@swip.com.cn Tel: 86-29-8386383 Fax: 86-29-8386287 |
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