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. 新竹市科學園區展業一路九號四樓之三 9-4F-3 Prosperity Road I Science-Based Industrial Park Hsinchu, Taiwan 300, R.O.C. Tel：886-3-5645656 Fax：886-3-5645626 點晶科技股份有限公司 ST1152A SILICON TOUCH TECHNOLOGY INC. 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 z z z z z z z 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 1 14 GND IN1 2 13 IN3 O1 3 12 O3 VS1 4 11 VS2 O2 5 10 O4 IN2 6 9 IN4 8 NC GND SP-ST1152A-A.006 7 ST1152A Version：A.006 -1- 點晶科技股份有限公司 ST1152A SILICON TOUCH TECHNOLOGY INC. PIN NO. PIN NAME DESCRIPTION 1 VDD Power supply pin for controller. 2 IN1 Input pin that determines driving mode. 3 O1 Output sinking / driving pin. 4 VS1 Power supply pin for output driver O1/ O2. 5 O2 Output sinking / driving pin. 6 IN2 Input pin that determines driving mode. 7 GND Ground pin 8 NC No connecting 9 IN4 Input pin that determines driving mode. 10 O4 Output sinking / driving pin. 11 VS2 Power supply pin for output driver O3/ O4. 12 O3 Output sinking / driving pin. 13 IN3 Input pin that determines driving mode. 14 GND Ground pin Absolute Maximum Ratings ( Unless otherwise noted, TA= 25℃ ) Characteristic Symbol Rating Unit VDD 5.5 V VS 5.5 V VIN VDD+0.4 V IOPeak 3 A IODC Current (in parallel connection) IODC 1.5 A Power Dissipation PD 800 mW Operating Temperature Range TOPR -40 ~ 125 °C Storage Temperature Range TSTG -65 ~ 150 °C Supply Voltage Input Voltage IO Peak connection) Current SP-ST1152A-A.006 (in parallel Version：A.006 -2- 點晶科技股份有限公司 ST1152A SILICON TOUCH TECHNOLOGY INC. Electrical Characteristic (Unless otherwise noted, TA= 25℃ & VDD = VS = 3V ) Characteristic Sym. Supply Voltage Supply Current ( IDD + IS ) Condition Limit Unit Min. Typ. Max. VDD 1.5 3 5.5 V VS 1.5 3 5.5 V IDD0 VIN1, IN2, IN3, IN4 = 0V 0.1 10 μA IDD1 VIN1=3V, VIN2, IN3, IN4=0V 0.05 0.5 mA IDD2 VIN1, IN2=3V, VIN3, IN4=0V 0.1 10 μA IN1 / IN2 / IN3 / IN4 Input Terminal ( TJ = 25℃) Input Voltage “H” VIH - 0.8*VDD - VDD+0. 4 V Input Voltage “L” VIL - -0.4 - 0.2*VDD V Input Current “H” IIH VIN = VDD - - ±5 μA Input Current “L” IIL VIN = 0 V - - ±5 μA O1 / O2 / O3 / O4 Output Terminal ( TJ = 25℃) VOUT1 IOUT = 200 mA - 0.15 0.3 V VOUT2 IOUT = 400 mA - 0.3 0.6 V Output Voltage VOUT3 IOUT = 750 mA - 0.6 0.95 V (upper + lower) VOUT4 IOUT = 400 mA ( parallel connection ) - 0.2 0.35 V VOUT5 IOUT = 800 mA ( parallel connection ) - 0.4 0.7 V Ron VDD=VS=3V, IOUT=400 mA - 0.75 - Ω - - VS V Output Resistance Output Sustaining Voltage VO(SUS) IOUT = 400 mA SP-ST1152A-A.006 Version：A.006 -3- 點晶科技股份有限公司 ST1152A SILICON TOUCH TECHNOLOGY INC. Truth Table IN1 / IN3 IN2 / IN4 O1 / O3 O2 / O4 Mode H L H L Forward L H L H Reverse H H H H Brake L L OFF OFF Standby Block Diagram & Application Circuit RVDD VDD VS2 VS1 1 11 4 10μF IN1 2 3 IN2 6 5 O1 M1 O2 Control O3 IN3 13 12 M2 IN4 9 10 NC SP-ST1152A-A.006 8 GND 7 Version：A.006 O4 14 GND -4- 點晶科技股份有限公司 ST1152A SILICON TOUCH TECHNOLOGY INC. Application Notes To increase system stability, it is suggestion to connect a resistor RVDD about 470Ω 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 Power Dissipation ( mW ) 900 800 700 600 500 400 300 200 100 0 0 SP-ST1152A-A.006 25 50 75 Ambient Temperature ( ℃ ) Version：A.006 100 125 -5- 點晶科技股份有限公司 ST1152A SILICON TOUCH TECHNOLOGY INC. Package Specifications(SOP-14) (14-pin SOP ) ST1152A xxxxxx* E C H θ L D 7°(4X) A2 A A1 y B e SYMBOL Dimensions in Millimeter Dimensions in Inches MIN NOM MAX MIN A 1.35 － 1.75 0.0532 － 0.0688 A1 0.10 － 0.25 0.0040 － 0.0098 A2 － － － － NOM － MAX － B 0.33 － 0.51 0.013 － 0.020 C 0.19 － 0.25 0.0075 － 0.0098 D 8.55 － 8.75 0.3367 － 0.3444 E 3.8 － 4.0 0.1497 － 0.1574 e － 1.27 － － 0.050 － H 5.8 － 6.2 0.2264 － 0.2440 L 0.40 － 1.27 0.016 － 0.050 Y － － 0.10 － － 0.004 θ 0° － 8° 0° － 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 Version：A.006 -6-