11-MD142

11-MD142 Version Issue Date File Name Total Page : A.003 : 2005/11/7 : SP-MD142-A.003.doc : 11 Multi-Channels Motor Driver For DSC 新竹市展業一路 9 號 7 樓之 1 SILICON TOUCH TECHNOLOGY INC. 9-7F-1, Prosperity Rd I, Science-Based Industrial Park Hsinchu, Taiwan, R.O.C. Tel：886-3-5645656 Fax：886-3-5645626 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 11-MD142 11-MD142 Motor Driver For DSC General Specifications The 11-MD142 is a 4-channels motor driver for Digital Still Camera. It contains constant current control for M-shutter and saturation voltage control channels for AF stepping motor and Iris. It is optimal for DSC Lens module in M-shutter, Iris and Auto Focus motor. Features and Benefits Low voltage operation Low saturation voltage Low input current Easy constant current control Ultra low standby current Reference Voltage inside (Vref=1.23V) Thermal shutdown protection Thin, highly reliable package :QFN-32(4.75mm X 4.75mm) and TSSOP-20 Pin Assignment Pin Assignment of QFN-32 OUT1 GND VDD NC NC NC NC IM Pin Assignment of TSSOP-20 32 31 30 29 28 27 26 25 24 VDD OUT1 GND IM OUT2 OUT3 OUT4 OUT5 OUT6 GND VREF PIM EN1 EN2 IAD IN1 IN2 IN3 IN4 1 NC PIM 2 23 GND EN1 3 22 OUT2 EN2 4 21 OUT3 OUT4 OUT5 OUT6 NC IAD IN1 IN2 IN3 IN4 VB 5 20 6 19 7 18 8 9 10 11 12 13 14 15 16 17 VREF GND NC NC NC NC NC VB SP-MD142-A.003 Version：A.003 Page：1 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 11-MD142 Pin Descriptions of QFN-32 Pin NO. Pin Name 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PIM EN1 EN2 IAD IN1 IN2 IN3 IN4 NC NC NC VB VREF GND NC NC Power supply pin for motor driver Reference voltage output pin Motor driver ground Description Current sense resistor Mode Selected Input pin Mode Selected Input pin AMP positive input pin Motor control input pin Motor control input pin Motor control input pin Motor control input pin Pin NO. Pin Name 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 OUT1 NC NC NC VDD Power supply pin for controller. Motor output pin NC OUT6 OUT5 OUT4 OUT3 OUT2 GND NC IM GND Current sense resistor Controller and driver ground Motor output pin Motor output pin Motor output pin Motor output pin Motor output pin Controller and driver ground Description Pin Descriptions of TSSOP-20 Pin NO. Pin Name 1 2 3 4 5 6 7 8 9 10 VDD PIM EN1 EN2 IAD IN1 IN2 IN3 IN4 VB Description Power supply pin for controller. Current sense resistor Mode selected Input pin Mode selected Input pin AMP positive input pin Motor control input pin Motor control input pin Motor control input pin Motor control input pin Power supply pin for motor driver Pin NO. Pin Name 11 12 13 14 15 16 17 18 19 20 VREF GND OUT6 OUT5 OUT4 OUT3 OUT2 IM GND OUT1 Description Reference voltage output pin Motor driver ground Motor output pin Motor output pin Motor output pin Motor output pin Motor output pin Current sense resistor Controller and driver ground Motor output pin SP-MD142-A.003 Version：A.003 Page：2 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 11-MD142 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 VB VIN IOPeak IODC PD TOPR TSTG Rating 5.5 5.5 VDD+0.4 1.5 550 800 -40 ~ 125 -65 ~ 150 Unit V V V A mA mW °C °C Electrical Characteristic (Unless otherwise noted, TA= 25℃ , Ra + Rb = 10 kΩ & VDD = VB = 3V ) Characteristic Sym. VDD VB ISTB Supply Current ( IDD ) IDD1 IDD2 IDD3 Reference Voltage Circuit Reference Voltage Vref VDD = 3V ; Iref = -1mA 1.19 1.23 1.27 V VEN1~ EN2 =L; VIN1~ IN4 =L VEN1~ EN2 = LH VEN1~ EN2 = HL VEN1~ EN2 = HH Condition Min. Supply Voltage 2.2 Limit Typ. 3 3 0.1 0.8 0.6 0.6 Max. 5.5 5.5 1 1.5 1.0 1.0 V V μA mA mA mA Unit EN1~2 / IN1~4 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 μA μA AF Output Terminal (OUT2-3，OUT5-6) Saturation Voltage (upper + lower) VSAT1 IOUT = 200 mA 0.25 0.4 V AE Output Terminal (OUT4-5) Saturation Voltage (upper + lower) VSAT2 IOUT = 200 mA 0.25 0.4 V SP-MD142-A.003 Version：A.003 Page：3 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 11-MD142 SH Output Terminal (OUT1-2) Output Current1 IO1 O2-> O1, RIM = 1Ω VIAD=0.3V O1-> O2, RPIM = 0.9Ω VIAD=0.3V IOUT = 200 mA 0.25 0.4 V 220 248 275 mA 255 270 285 mA Output Current1 Saturation Voltage (upper + lower) IO2 VSAT3 Thermal Protection Circuit Protection Temperature TTSD VEN1 or VEN2=H 160 ℃ Truth Table EN1 L EN2 L INPUT IN1 IN2 IN3 IN4 ———— L L L H H L H H L L L H H L H H L L L H H L H H L L L H H L H H L L L H H L H H L L L H H L H H O1 — — L H — O2 — — H L — OUPUT O3 O4 — — — — — — — — — L — H — — — L H — — L H — — — — H — L — — — — — — O5 — O6 — — — — — — — — — — — — — — — — — MODE STB L H SH — H L — H L H H — — — — — — — — — — — — — — — — — — — — — H L — AE (VCM) — L H — — L H — — H L — AF (STM) Note: “*”: Don’t care; “—“: High Impedance SP-MD142-A.003 Version：A.003 Page：4 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 11-MD142 Application Circuit AF: Saturation drive for 2 phase, 1-2 phase stepping motor M-shutter: Constant current drive for shutter voice coil motor Aperture: Saturation drive for aperture voice coil motor VDD 11-MD142 10μ VDD RPIM VB 10μ EN1 EN1 IM PIM GND RIM Cc OUT1 M-shutter EN2 EN2 OUT2 Cn Cn IAD OUT3 AF Cn IN1 IN1 OUT4 Aperture IN2 IN2 OUT5 IN3 IN3 OUT6 IN4 IN4 GND VB 10μ VREF Ra Rb SP-MD142-A.003 Version：A.003 Page：5 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 11-MD142 Function Block (TSSOP-20 Pin Assignment) CPU GND 19 VDD EN1 3 VDD EN2 4 VDD IN1 6 VDD IN2 7 VDD IN3 8 VDD IN4 9 1 10uF VDD BIAS VREF 11 Ra 5 Rb IAD Logic THD VB 10 10uF RPIM 2 PIM IM 18 RIM OUT1 20 12 OUT2 17 OUT3 16 OUT4 15 OUT5 14 OUT6 13 Shutter Constant Current Drive Aperture AF Saturation Voltage Drive SP-MD142-A.003 Version：A.003 Page：6 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 11-MD142 Application Notes The 11-MD142 integrates saturation voltage and constant current of motor driver. The range of supply voltage of 11-MD142, VDD and VB, is from 2.2V to 5.5V. The 11-MD142 input range is defined that logic “H” is from 0.8*VDD to VDD+0.4V and logic “L” is from –0.4V to 0.2*VDD. EN1 and EN2 are mode selection pins; IN1, IN2, IN3 and IN4 are motor rotation selection pins. Normally VB should provide enough current for output loading, thus large value of C is suggested for the terminal VB. Besides, 0.01uF~0.1uF of capacitors, Cn, are also suggested between each output channel and output channel to ground. Constant current operation of 11-MD142 provides the current, which can be evaluated by the following formula (See the depiction of application circuit 1.): I PIM = VIAD ( RPIM + 0.3) (unit : A) I IM = V IAD ( R IM + 0.11) (unit : A) Before switching the mode of actuator, make sure to pull low the motor rotation selection pins (IN1~IN4). Then, switch to next mode to drive the motor. Considering of stability of function of constant current, compensation capacitor of Cc (0.1~1uF) is suggested to connect between pin OUT1 and IM. SP-MD142-A.003 Version：A.003 Page：7 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 11-MD142 Package Specifications (QFN-32) TOP VIEW BOTTON VIEW 32 D 25 25 D2 32 1 1 24 24 e MD142 DDDDDDDD E E2 8 17 L 9 16 17 8 16 e b 9 A3 A1 A Note: “DDDDDDDD” are the date code or lot number and may be changed. Dimensions in Millimeter SYMBOL A A1 A3 b D D2 E E2 L e 2.60 0.30 2.60 MIN 0.70 0 0.18 NOM 0.75 0.02 0.20 REF 0.25 5.00 5.00 BSC 2.80 2.80 0. 50 BSC 2.70 2.70 0.40 0.50 BSC MAX 0.80 0.05 0.30 SP-MD142-A.003 Version：A.003 Page：8 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 11-MD142 Package Specifications(TSSOP-20) MD142 DDDDDDDD Note: “DDDDDDDD” are the date code or lot number and may be changed. e b 12˚(4X) Dimensions in Millimeter SYMBOL A A1 A2 b C D E E1 e L y θ MIN － 0.05 0.80 0.19 0.09 6.40 6.20 4.30 － 0.45 － 0° NOM － － 1 － － 6.50 6.40 4.40 0.65 0.60 － － MAX 1.20 0.15 1.05 0.30 0.20 6.60 6.40 4.50 － 0.75 0.10 8° SP-MD142-A.003 Version：A.003 Page：9 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 11-MD142 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. Version：A.003 Page：10 SP-MD142-A.003