11-MD124 Version Issue Date File Name Total Pages : A.008 : 2004/12/20 : SP-11-MD124-A.008.doc :7 Low-saturation, Low-voltage Bi-directional Motor Driver 新竹市展業一路 9 號 4 樓之 3 SILICON TOUCH TECHNOLOGY INC. 9-4F-3, Prosperity Rd I, Science-Based Industrial Park Hsinchu, Taiwan, R.O.C. Tel：886-3-5727171 Fax：886-3-5727390 點晶科技股份有限公司 11-MD124 SILICON TOUCH TECHNOLOGY INC. 11-MD124 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 = 1.5V ) Low saturation voltage Optimal for 2 phase excitation drive for 2-phase stepping motors High output sinking and driving capability Thin, highly reliable package (MSOP10, DFN10) z z z z z Pin Assignment MSOP10 PIN NO. PIN NAME 1 10 IN1 VDD 2 9 IN2 GND 3 8 O2 O3 4 7 O1 5 6 11-MD124 xxxxxx O4 DFN10 O4 1 10 IN1 VDD 2 9 IN2 GND 3 8 O2 O3 4 7 GND O1 5 6 EN SP-MD124-A.008 DESCRIPTION 1 O4 Output sinking / driving pin. 2 VDD Power supply pin. GND 3 GND Ground pin EN 4 O3 Output sinking / driving pin. 5 O1 Output sinking / driving pin. 6 EN Input pin that determines driving mode 7 GND Ground pin 8 O2 Output sinking / driving pin. 9 IN2 Input pin that determines driving mode. 10 IN1 Input pin that determines driving mode. Version：A.008 -1- 點晶科技股份有限公司 11-MD124 SILICON TOUCH TECHNOLOGY INC. Absolute Maximum Ratings ( Unless otherwise noted, TA= 25℃ Characteristic ) Symbol Rating Unit Supply Voltage VDD 6.0 V Input Voltage VIN VDD+0.4 V IODC Current IODC 500 mA Power Dissipation PD 486 mW Operating Temperature Range TOPR -40 ~ 125 °C Storage Temperature Range TSTG -65 ~ 150 °C Electrical Characteristic (Unless otherwise noted, TA= 25℃ Characteristic Sym. Supply Voltage VDD Supply Current IDD & VDD = 3V ) Limit Condition Unit Min. Typ. Max. 1.5 3 6 V 0.2 0.5 μA VEN, IN1, IN2 = 0V EN / IN1 / IN2 Input Terminal ( TJ = 25℃) Input Voltage “H” VIH - 0.5*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℃) Output Voltage VOUT0 IOUT = 200 mA - 0.25 0.35 V (upper + lower) VOUT1 IOUT = 400 mA - 0.4 0.6 V Truth Table EN L H Input pins IN1 L L H H SP-MD124-A.008 IN2 L H H L O1 OFF H H L L Output pins O2 O3 OFF OFF L H L L H L H H Version：A.008 O4 OFF L H H L Notes Standby 2-phase excitation -2- 點晶科技股份有限公司 11-MD124 SILICON TOUCH TECHNOLOGY INC. Block Diagram & Application Circuit 10μF R1* 2 EN MicroController IN1 VDD 6 5 10 8 Control Block IN2 O1 Stepping Motor O2 O3 9 4 1 GND 3 GND O4 7 * R1 is recommended to 1Ω~ 2Ω. Timing Chart VDD ENA IN1 IN2 O1 O2 O3 O4 Stepping Motor 2-Phase Excitation SP-MD124-A.008 Version：A.008 -3- 點晶科技股份有限公司 11-MD124 SILICON TOUCH TECHNOLOGY INC. Application Notes The GND pin 3 and pin 7 must both connect to system ground. To increase system stability, connecting the resistor R1 about 1Ω ~ 2Ωbetween system power and IC power supply VDD is recommended. Typical Performance Curve IDD VS VDD 0.7 VIN=VDD 0.6 0.5 Current Drain I DD (mA) Output Saturation Voltage V SAT(V) VSAT VS IOUT VDD=3V VDD=3V 0.4 VDD=5V VDD=5V 0.3 0.2 0.1 0.0 0.1 0.2 0.3 0.4 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.5 Output Current I OUT(A) SP-MD124-A.008 Version：A.008 0 VEN=VDD 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 Power Supply Voltage V DD (V) -4- 點晶科技股份有限公司 11-MD124 SILICON TOUCH TECHNOLOGY INC. Package Specifications (MSOP10) E1 E C θ L D Dimensions in Millimeter 12°(4X) A2 A1 y b e A Dimensions in Inches SYMBOL MIN NOM MAX MIN NOM MAX A 0.81 0.92 1.07 0.032 0.036 0.042 A1 0.00 － 0.10 0.000 － 0.004 A2 b C D E E1 0.76 0.15 0.13 2.90 4.80 2.90 0.86 0.20 0.15 3.00 4.90 3.00 0.97 0.30 0.23 3.10 5.00 3.10 0.030 0.006 0.005 0.114 0.189 0.114 0.034 0.008 0.006 0.118 0.193 0.118 0.038 0.012 0.009 0.122 0.197 0.122 e － 0.50 － － 0.0197 － L 0.40 － 0.53 － 0.66 0.10 0.016 － 0.021 － 0.026 Y θ 0° － 6° 0° － 6° 0.004 (DFN10) SP-MD124-A.008 Version：A.008 -5- 點晶科技股份有限公司 11-MD124 SILICON TOUCH TECHNOLOGY INC. 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-MD124-A.008 Version：A.008 -6-