ST1117A/B/C(-P/-M) Version : A.014 Issue Date: 2011/05/16 File Name : SP-ST1117ABC-PM-A.014.doc Total Pages: 9 Single Coil Brushless DC Motor Drivers ( 1.5 to 8.5 Volts ) 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 ST1117A/ST1117B/ST1117C ST1117A-P/ST1117B-P/ST1117C-P ST1117A-M/ST1117B-M/ST1117C-M ST1117A(-P/-M) / ST1117B(-P/-M) / ST1117C(-P/-M) Single Coil Brushless DC Motor Drivers ( 1.5 to 8.5 Volts ) General Specifications The device is a single coil DC brushless motor driver IC with PWM control, lock protection, power polarity reverse protection and frequency generator. The driver is optimal for single coil fan applications with less external components. Features and Benefits z z z z z z z z z z Support single-phase full wave Brushless DC Motor Driver Built-in Hall sensor input amplifier Low voltage startup (VDD=1.5V) High output sinking and driving capability Lock detection and automatic self-restart Without external timing capacitor, Reduces the numbers of external component required External PWM control signal input With FG/2 output for ST1117A / ST1117A-P / ST1117A-M With FG output for ST1117B / ST1117B-P / ST1117B-M With RD output for ST1117C / ST1117C-P / ST1117C-M Thin, compact, highly reliable package (SOT-28, TSOT-28, SOP-8, MSOP-8) Thermal shutdown protection Pin Description ST1117A / ST1117B / ST1117C : SOT-28, TSOT-28 Package : SOT-28 / TSOT-28 NO. NAME O1 VSS O2 SOT VDD FGR TSOT PWM HN HP SP-ST1117ABC-PM-A.014 DESCRIPTION 1 O1 Output driving & sinking pin 2 VSS Ground pin 3 FGR Frequency generator or rotating detector ST1117A : FG/2 ST1117B : FG ST1117C : RD 4 5 6 7 HP HN PWM VDD Hall sensor in+ Hall sensor inInput pin for PWM Control Power supply pin 8 O2 Output driving & sinking pin Version：A.014 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. Page：1 ST1117A/ST1117B/ST1117C ST1117A-P/ST1117B-P/ST1117C-P ST1117A-M/ST1117B-M/ST1117C-M ST1117A-P / ST1117B-P / ST1117C-P : SOP-8 ST1117A-M / ST1117B-M / ST1117C-M : MSOP-8 Package : SOP 8 / MSOP8 HP FGR NO. NAME 1 HP HN SOP MSOP O2 VSS PWM 2 VDD 3 O2 4 VSS O1 FGR 5 O1 6 7 VDD PWM 8 HN DESCRIPTION Hall sensor in+ Frequency generator or rotating detector ST1117A-P (-M) : FG/2 ST1117B-P (-M) : FG ST1117C-P (-M) : RD Output driving & sinking pin Ground pin Output driving & sinking pin Power supply pin Input pin for PWM Control Hall sensor in- Absolute Maximum Ratings ( Unless otherwise noted, VDD=5V, TA = 25 °C ) Characteristic Symbol VDD VIN IOUT IOL1 IOL2 IFGR_MAX VFGR_MAX fPWM PD1 PD2 PD3 PD4 Rating 1.5 ~ 8.5 VDD+0.4 400 1 1.2 10 9 100 568 592 796 657 Unit V V mA A A mA V KHz mW mW mW mW Operating Temperature Range TOPR -40 ~ 125 °C Storage Temperature Range TSTG -65 ~ 150 °C TJ 150 °C Thermal Resistance, Junction to Ambient (TSOT-28) θJA_TSOT28 220 °C/ W Thermal Resistance, Junction to Case (TSOT-28) θJC_TSOT28 92 °C/ W Thermal Resistance, Junction to Ambient (SOT-28) θJA_SOT28 211 °C/ W Thermal Resistance, Junction to Case (SOT-28) θJC_SOT28 92 °C/ W Thermal Resistance, Junction to Ambient (SOP-8) θJA_SOP8 157 °C/ W Thermal Resistance, Junction to Case (SOP-8) θJC_SOP8 56 °C/ W Thermal Resistance, Junction to Ambient (MSOP-8) θJA_MSOP8 190 °C/ W Thermal Resistance, Junction to Case (MSOP-8) θJC_MSOP8 56 °C/ W Supply Voltage* Maximum Input Voltage Output Current Output Current at Lock (SOT-28) Output Current at Lock (SOP-8) Maximum FGR Output Current Maximum FGR Output Voltage PWM control frequency Power Dissipation (TSOT-28) Power Dissipation (SOT-28) Power Dissipation (SOP8) Power Dissipation (MSOP8) Operating Junction Temperature Notes:* The maximum power supply voltage & output current must be under the allowable package power dissipation. SP-ST1117ABC-PM-A.014 Version：A.014 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. Page：2 ST1117A/ST1117B/ST1117C ST1117A-P/ST1117B-P/ST1117C-P ST1117A-M/ST1117B-M/ST1117C-M Electrical Characteristics ( Unless otherwise noted, VDD=5V, TA = 25 °C ) Characteristic Sym. Limit Condition Zero to peak Unit Min. Typ. Max. - 7 25 mV Hall input sensitivity VHN PWM Input Voltage “H” VIH - 0.5*VDD - VDD+0.4 V PWM Input Voltage “L” VIL - -0.4 - 0.15*VDD V PWM Input Current “H” IIH VIN = VDD - 0.15 1 μA PWM Input Current “L” IIL VIN = 0V - 0.3 2 mA O1/O2 Output Voltage High VOH IOUT = 300 mA 4.6 4.7 - V O1/O2 Output Voltage Low VOL IOUT = 300 mA - 0.25 0.3 V O1/O2 Output Current IOUT RL = 30Ω 150 160 165 mA FGR Leakage Current ILeak VFGR = 5V - 1 3 μA FGR Output Current IFGR VFGROL = 0.4V 5 8 - mA VFGROL IFGR= 5 mA - 0.25 0.4 V ms FGR Output Voltage Low On Time TON - 150 180 250 Duty Ratio RDR TOFF / TON 6 7 8 Thermal Shutdown Temperature TSD* - 130 180 200 °C Notes:* TSD is design target value, the parameter is not tested in independent IC. Truth Table HP H L - HN L H - PWM H H L O1 H L OFF O2 L H OFF Block Diagram & Application Circuit POWER VDD Power FGR Frequency Generator / Rotating Detector FG / RD PWM *1 HALL *2 HP AMP Sensor HN GND Logic Block + DRIVERS - O1 *3 O2 OSC *1, *2, *3 : The Zener diode and capacitors will increase system stability, if required. SP-ST1117ABC-PM-A.014 Version：A.014 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. Page：3 ST1117A/ST1117B/ST1117C ST1117A-P/ST1117B-P/ST1117C-P ST1117A-M/ST1117B-M/ST1117C-M Application Notes The device is operated within wide supply voltage range from 1.5 to 8.5 Volts. The design, specifications and performance have been optimized for 3V and 5V brushless DC motor applications. The output driver node O1/O2 will be “turned to drive/sink” when V(HP) > V(HN). Similarly, the output O1/O2 will be “turned to sink/drive” when V(HP) < V(HN). The output frequency on FGR pin is dividing the hall switching frequency with 2 for ST1117A (-P,-M), the same frequency with hall switching for ST1117B (-P,-M), and the rotating detection for ST1117C (-P,-M). With suitable pull up, the fan tachometer output can be used directly with bipolar or MOS logic for motor speed monitoring/control. To get better FG signal output, increasing stability of power system is required. The pull up resistor about 20KΩ is connected to PWM pin already. The PWM command is active high. If low acoustic noise is desired, the external PWM frequency is recommended below 200Hz or 20KHz ~ 40KHz. There is no need of external timing capacitor for lock protection and auto-restart function. For 5V application, the drivers will be shut down roughly 1 to 3 seconds after the motor is locked. When the drivers have been shut down, the automatic self-restart circuit will try to power up the drivers every 1 to 3 seconds until lock is released. There is no requirement of protection diode for power reverse fault in normal applications. The power polarity reverse protection circuit is built-in. The capacitor between two ends of coil ( *3 in application circuit) is proposed to connect 0.1μF for PWM application and 1μF for full-speed application. The connection of the capacitor or Zener Diode (*1 in application circuit) between VDD and GND, the capacitor (*2 in application circuit) between two Hall sensor output and the capacitor (*3 in application circuit) between two ends of coil will increase system stability when motor is rotating. SP-ST1117ABC-PM-A.014 Version：A.014 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. Page：4 ST1117A/ST1117B/ST1117C ST1117A-P/ST1117B-P/ST1117C-P ST1117A-M/ST1117B-M/ST1117C-M 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 maximum allowable power consumption can be calculated by the following equation: Pd ( Power Dissipation)(Watt ) = Tj ( Junction Temperature)(max)( o C ) − Ta ( Ambient Temperature)( o C ) θ JA (Thermal Re sis tan ce, Junction to Ambient )( o C / Watt ) The relationship between power dissipation and operating temperature can refer to the figure below: SP-ST1117ABC-PM-A.014 Version：A.014 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. Page：5 ST1117A/ST1117B/ST1117C ST1117A-P/ST1117B-P/ST1117C-P ST1117A-M/ST1117B-M/ST1117C-M Package Specifications ST1117A / ST1117B / ST1117C : TSOT28 (8-pin TSOT-28 ) C 7Ann* 7Ann* E H L e θ1 D A A2 A1 b VARIATION(ALL DIMENSIONS SHOWN IN MM) SYMBOL MIN. NOM. MAX. A 0.750 - 0.800 A1 0 - 0.050 A2 0.700 0.750 0.775 b 0.220 - 0.380 c 0.100 - 0.200 D 2.800 2.900 3.000 E 2.600 2.800 3.000 E1 1.500 1.600 1.700 e 0.650 BSC e1 1.950 BSC L 0.370 0.450 *Note : The “7Ann” is the package marking where the first 0.600 L1 0.60 0 REF L2 0.250 BSC two characters “7A” are product identification code shown as following table, the last 2 characters "nn" are date code or lot number, and therefore being subject to change. R 0.100 - - Product Mark(ID + Date Code) R1 0.100 - 0.250 ST1117A ST1117B ST1117C 7Ann 7Bnn 7Cnn θ θ1 0 o 4 o 4 o 10 8 o o 12 o ST1117A / ST1117B / ST1117C : SOT28 (8-pin SOT-28 ) C E H 7Ann* L e θ1 D A2 b A A1 *Note : The “7Ann” is the package m arking where the first two characters “7A” are product identification code shown as following table, the last 2 characters "nn" are date code or lot number, and therefore being subject to change. SP-ST1117ABC-PM-A.014 Product Mark(ID + Date Code) ST1117A ST1117B ST1117C 7Ann 7Bnn 7Cnn Version：A.014 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. Page：6 ST1117A/ST1117B/ST1117C ST1117A-P/ST1117B-P/ST1117C-P ST1117A-M/ST1117B-M/ST1117C-M ST1117A-P / ST1117B-P / ST1117C-P: SOP8 ( 8-pin SOP ) ST11 17A XX XX XX* * The p ackage m arking “ST1117 A” is product co de for ST1117A and w ill change to “ST1117 B” for ST1117 B and “ST1117C” for ST1 117C. The “X XXX XX ” is a lot num ber and therefore b eing subject to chan ge. ST1117A-M / ST1117B-M / ST1117C-M: MSOP8 (8-pin MSOP ) E1 E C θ L D 12 °(4X) A2 A A1 y SP-ST1117ABC-PM-A.014 b e Version：A.014 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. Page：7 ST1117A/ST1117B/ST1117C ST1117A-P/ST1117B-P/ST1117C-P ST1117A-M/ST1117B-M/ST1117C-M 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. Silicon Touch Technology, Inc. reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. SP-ST1117ABC-PM-A.014 Version：A.014 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. Page：8