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| ST1152A Version Issue Date File Name Total Pages : A.006 : 2005/10/25 : SP-ST1152A-A.006.doc :7 Low-saturation, Low-voltage Bi-directional Motor Driver SILICON TOUCH TECHNOLOGY INC. 9-4F-3 Prosperity Road I Science-Based Industrial Park Hsinchu, Taiwan 300, R.O.C. Tel886-3-5645656 Fax886-3-5645626 SILICON TOUCH TECHNOLOGY INC. ST1152A ST1152A Low-saturation, Low-voltage Bi-directional Motor Driver General Specifications The device is a two-channel low-saturation bi-directional motor driver IC. The design is optimal for stepper-motor applications, such as cameras, printers, FDDs, or other portable devices. Features and Benefits Low voltage operation ( VDD min = VS1 min = VS2 min = 1.5V ) Low saturation voltage ( Upper transistor + low transistor residual voltage; 0.3V typ. at 400mA, 0.6V typ. at 750mA) Parallel connection ( two-channel driver: Upper transistor + low transistor residual ; 0.4V typ. at 800mA ) Separate control logic power supply and motor driver power supply Brake function High output sinking and driving capability Thin, highly reliable package (SOP-14) Pin Assignment VDD IN1 O1 VS1 O2 IN2 GND 1 2 3 4 5 6 7 14 13 12 GND IN3 O3 VS2 O4 IN4 NC ST1152A 11 10 9 8 SP-ST1152A-A.006 VersionA.006 -1- SILICON TOUCH TECHNOLOGY INC. ST1152A PIN NO. PIN NAME 1 2 3 4 5 6 7 8 9 10 11 12 13 14 VDD IN1 O1 VS1 O2 IN2 GND NC IN4 O4 VS2 O3 IN3 GND DESCRIPTION Power supply pin for controller. Input pin that determines driving mode. Output sinking / driving pin. Power supply pin for output driver O1/ O2. Output sinking / driving pin. Input pin that determines driving mode. Ground pin No connecting Input pin that determines driving mode. Output sinking / driving pin. Power supply pin for output driver O3/ O4. Output sinking / driving pin. Input pin that determines driving mode. Ground pin Absolute Maximum Ratings ( Unless otherwise noted, TA= 25 ) Characteristic Supply Voltage Input Voltage IO Peak connection) Current (in parallel Symbol VDD VS VIN IOPeak IODC PD TOPR TSTG Rating 5.5 5.5 VDD+0.4 3 1.5 800 -40 ~ 125 -65 ~ 150 Unit V V V A A mW C C IODC Current (in parallel connection) Power Dissipation Operating Temperature Range Storage Temperature Range SP-ST1152A-A.006 VersionA.006 -2- SILICON TOUCH TECHNOLOGY INC. ST1152A Electrical Characteristic (Unless otherwise noted, TA= 25 & VDD = VS = 3V ) Limit Min. 1.5 1.5 VIN1, IN2, IN3, IN4 = 0V VIN1=3V, VIN2, IN3, IN4=0V VIN1, IN2=3V, VIN3, IN4=0V Typ. 3 3 0.1 0.05 0.1 Max. 5.5 5.5 10 0.5 10 Characteristic Sym. VDD VS IDD0 IDD1 IDD2 Condition Unit V V A mA A Supply Voltage Supply Current ( IDD + IS ) IN1 / IN2 / IN3 / IN4 Input Terminal ( TJ = 25) Input Voltage "H" Input Voltage "L" Input Current "H" Input Current "L" VIH VIL IIH IIL VIN = VDD VIN = 0 V 0.8*VDD -0.4 VDD+0. 4 0.2*VDD 5 5 V V A A O1 / O2 / O3 / O4 Output Terminal ( TJ = 25) VOUT1 VOUT2 Output Voltage (upper + lower) VOUT3 VOUT4 VOUT5 Output Resistance Output Sustaining Voltage Ron IOUT = 200 mA IOUT = 400 mA IOUT = 750 mA IOUT = 400 mA ( parallel connection ) IOUT = 800 mA ( parallel connection ) VDD=VS=3V, IOUT=400 mA 0.15 0.3 0.6 0.2 0.4 0.75 0.3 0.6 0.95 0.35 0.7 VS V V V V V V VO(SUS) IOUT = 400 mA SP-ST1152A-A.006 VersionA.006 -3- SILICON TOUCH TECHNOLOGY INC. ST1152A Truth Table IN1 / IN3 H L H L IN2 / IN4 L H H L O1 / O3 H L H OFF O2 / O4 L H H OFF Mode Forward Reverse Brake Standby Block Diagram & Application Circuit RVDD VDD VS2 VS1 1 11 4 O1 M1 IN2 6 5 O2 10F IN1 2 3 Control O3 IN3 13 12 M2 IN4 9 10 O4 NC 8 GND 7 14 GND SP-ST1152A-A.006 VersionA.006 -4- SILICON TOUCH TECHNOLOGY INC. ST1152A Application Notes To increase system stability, it is suggestion to connect a resistor RVDD about 470 between battery power and driver's VDD pin as shown on application circuit. In multiple power supply application, although power supply of control logic (VDD) and motor driver (VS1, VS2) are separated for noise reduction, the voltage of VDD, VS1 and VS2 pins can be expressed by V(VDD) - 0.5 V(VS) , where V(VDD) is the voltage of VDD pin and V(VS) is the voltage of VS1 and VS2 pins. The power dissipated by the IC varies widely with the supply voltage, the output current, and loading. It is important to ensure the application does not exceed the allowable power dissipation of the IC package. The recommended motor driver power dissipation versus temperature is depicted as follows: Power Dissipation-Temperature 900 800 700 600 500 400 300 200 100 0 0 25 50 75 Ambient Temperature ( ) 100 125 SP-ST1152A-A.006 Power Dissipation ( mW ) VersionA.006 -5- SILICON TOUCH TECHNOLOGY INC. ST1152A Package Specifications(SOP-14) (14-pin SOP ) ST1152A xxxxxx* D E H C L 7(4X) A2 A A1 y B e SYMBOL A A1 A2 B C D E e H L Y Dimensions in Millimeter MIN 1.35 0.10 0.33 0.19 8.55 3.8 5.8 0.40 0 NOM 1.27 MAX 1.75 0.25 0.51 0.25 8.75 4.0 6.2 1.27 0.10 8 Dimensions in Inches MIN 0.0532 0.0040 0.013 0.0075 0.3367 0.1497 0.2264 0.016 0 NOM 0.050 MAX 0.0688 0.0098 0.020 0.0098 0.3444 0.1574 0.2440 0.050 0.004 8 * The package marking "xxxxxx" is a lot number, and therefore being subject to change. The products listed herein are designed for ordinary electronic applications, such as electrical appliances, audio-visual equipment, communications devices and so on. Hence, it is advisable that the devices should not be used in medical instruments, surgical implants, aerospace machinery, nuclear power control systems, disaster/crime-prevention equipment and the like. Misusing those products may directly or indirectly endanger human life, or cause injury and property loss. Silicon Touch Technology, Inc. will not take any responsibilities regarding the misusage of the products mentioned above. Anyone who purchases any products described herein with the above-mentioned intention or with such misused applications should accept full responsibility and indemnify. Silicon Touch Technology, Inc. and its distributors and all their officers and employees shall defend jointly and severally against any and all claims and litigation and all damages, cost and expenses associated with such intention and manipulation. SP-ST1152A-A.006 VersionA.006 -6- |
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