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| ST1151A Version : A.03 Issue Date : 2003/03/18 File Name : ST1151A_A03.doc Total Pages: 6 Low-saturation, Low-voltage 1.5 Channel 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. ST1151A ST1151A Low-saturation, Low-voltage 1.5 Channel Bi-directional Motor Driver General Specifications The device is a 1.5-channel low-saturation bi-directional motor driver IC. The design is optimal for motor applications, such as cameras, printers, FDDs, or other portable devices with forward, reverse, bake and stand-by function. Features and Benefits Low voltage operation ( VDD Min = VSMin = 1.5V ) Low saturation voltage ( Upper transistor + low transistor residual voltage; 0.4V typ. at 300mA , VDD = VS = 3V) Low input current Brake function High output sinking and driving capability Thin, highly reliable package (SOP-8) Pin Assignment VS O1 IN3 GND O2 IN2 VDD IN1 Pin NO. 1 2 3 4 5 6 7 8 Pin Name VS O1 IN3 GND IN1 VDD IN2 O2 Description Power supply pin for output driver Output sinking / driving pin Input pin 3 that determines driving mode Ground pin Input pin 1 that determines driving mode Power supply pin for controller. Input pin 2 that determines driving mode Output sinking / driving pin ST1151A_A03.doc VersionA.03 Page1 SILICON TOUCH TECHNOLOGY INC. ST1151A Absolute Maximum Ratings ( Unless otherwise noted, TA= 25 ) Characteristic Supply Voltage Input Voltage IO Peak Current IODC Current Power Dissipation Operating Temperature Range Storage Temperature Range Symbol VDD VS VIN IOPeak IODC PD TOPR TSTG Rating 5.5 5.5 VDD+0.4 2 0.75 680 -40 ~ 125 -65 ~ 150 Unit V V V A A mW C C Electrical Characteristic (Unless otherwise noted, TA= 25 & VDD = VS = 3V ) Characteristic Sym. VDD VS IDD0 IDD1 VIN1, IN2, IN3 = 0V VIN1, IN2, IN3 = 3V Condition Limit Min. 1.5 1.5 Typ. 3 3 0.5 1 Max. 5.5 5.5 10 10 Unit V V A A Supply Voltage Supply Current ( IDD + IS ) IN1 / IN2 / IN3 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 Output Terminal ( TJ = 25) Output Voltage (upper + lower) Output Sustaining Voltage VOUT1 VOUT2 VOUT3 IOUT = 200 mA IOUT = 300 mA IOUT = 600 mA 0.3 0.5 0.9 0.45 0.7 1.0 VS V V V V VO(SUS) IOUT = 400 mA ST1151A_A03.doc VersionA.03 Page2 SILICON TOUCH TECHNOLOGY INC. ST1151A Truth Table Input Signal IN1 H L H L H L H IN2 L H H L L H H IN3 L L L L H H H Output Driver O1 H L H OFF OFF OFF OFF O2 L H H OFF H L H Mode M1Forward M1Reverse M1Brake Standby M2 Operation M2 Operation M2 Operation Block Diagram & Application Circuit VDD 6 VS 1 1F IN1 5 2 7 O1 M1 8 O2 M2 IN2 Control IN3 3 GND 4 Note. To select M2 operating, the external driver is required. ST1151A_A03.doc VersionA.03 Page3 SILICON TOUCH TECHNOLOGY INC. ST1151A Application Notes In multiple power supply application, the voltage of VDD pin must lager than or equal to the voltage of VS pin. 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 700 Power Dissipation ( mW ) 600 500 400 300 200 100 0 0 25 50 75 100 125 Ambient Temperature ( ) ST1151A_A03.doc VersionA.03 Page4 SILICON TOUCH TECHNOLOGY INC. ST1151A Package Specifications (SOP-8) ( 8-pin SOP ) ST1151A XXXXXX * E H C L D 7(4X) A2 A A1 y B e SYMBOL A A1 A2 B C D E e H L Y Dim ensions in Millim eter MIN 1.35 0.10 0.33 0.19 4.80 3.80 5.80 0.40 0 NOM 1.60 1.45 1.27 MAX 1.75 0.25 0.51 0.25 5.00 4.00 6.20 1.27 0.10 8 Dim ensions in Inches MIN 0.053 0.004 0.013 0.007 0.189 0.150 0.228 0.016 0 NOM 0.063 0.057 1.27 MAX 0.069 0.010 0.020 0.010 0.197 0.157 0.244 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. ST1151A_A03.doc VersionA.03 Page5 |
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