11-FD212 Version : A.003 Issue Date : 2007/01/08 File Name : SP-11FD212-A.003.doc Total Pages: 8 Single Coil Brushless DC Motor Drivers Built-in Hall Sensor ( 2 to 5.5 Volts ) 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. FD212 11-FD212 Single Coil Brushless DC Motor Drivers Built-in Hall Sensor ( 2 to 5.5 Volts) General Specifications The device is designed specifically for electronic commutation of single coil DC motor applications. Each device includes a HALL sensor, a frequency generator output, a lock detection circuit to shut down the drivers for overheat prevention, and complementary bi-directional drivers for driving and sinking large load on a single silicon chip. If the motor rotation is stalled by external force or obstacles, overdrive current ( or lock current ) may incur coil overheat/burning. To prevent coil overheat/burning, these devices incorporate lock detection circuit to shut down the drivers. After the motor locking is released, the drivers can be powered up using an automatic self-restart circuit. The drivers are shut down roughly 1 to 3 seconds after the motor is locked. After the drivers are shut down, the automatic self-restart circuit will try to power up the drivers every 1 to 3 seconds. SP-FD212-A.003 Version：A.003 Page：1 點晶科技股份有限公司 FD212 SILICON TOUCH TECHNOLOGY INC. Pin Description (LFCSP8) FG O2 NC NC VDD NC PIN NO. PIN NAME DESCRIPTION GND O1 PIN NO. PIN NAME DESCRIPTION 1 NC No connection 5 O1 Output driving/sinking pin 1 2 NC No connection 6 GND Ground pin 3 VDD Power supply pin 7 O2 Output driving/sinking pin 2 4 NC No connection 8 FG Frequency generator output (SOT-25) PIN NO. PIN NAME O2 O1 GND VDD FG DESCRIPTION 1 O2 Output driving/sinking pin 2 2 VDD Power supply pin 3 FG Frequency generator output 4 GND Ground pin 5 O1 Output driving/sinking pin 1 Features and Benefits z z z z z z z Optimized for single coil Brushless DC Motor applications Built-in Hall effect sensor Built-in Reverse Protection Frequency generator output Lock detection and automatic self-restart without external capacitor High output sinking and driving capability Ultra-thin, small and highly reliable package (LFCSP8,SOT-25) SP-FD212-A.003 Version：A.003 Page：2 點晶科技股份有限公司 FD212 SILICON TOUCH TECHNOLOGY INC. Absolute Maximum Ratings ( Unless otherwise noted, TA = 25 °C ) Characteristic Supply Voltage Input Voltage from a Hall Effect Latch Output Output Current Maximum Power Dissipation of LFCSP8 Symbol VDD VIN IOUT PD1,max Rating 6.5 VDD+0.4 350 600 Unit V V mA mW θJA1 208.5 °C/ W PD2,max 360 mW Thermal Resistance SOT25 θJA2 347 °C/ W Operating Temperature Range TOPR -40 ~ 125 °C Storage Temperature Range TSTG -65 ~ 150 °C Thermal Resistance LFCSP8 Maximum Power Dissipation of SOT25 Electrical Characteristics ( TA= 25°C ) Characteristic Sym. Supply Voltage VDD Supply Current IDD Limit Condition Operating Unit Min. Typ. Max. 2 3.3 5.5 V 5 10 mA Auto-restart operating Magnetic Specifications ( TJ = 25℃) Operating Point BOP - 1.0 10 mT Release Point BRP - -1.0 -10 mT Hysteresis BHYS - 2.0 20 mT O1/O2 Output Terminal ( TJ = 25℃) Output Voltage High VOH IOUT = 300 mA 4.7 - - V Output Voltage Low VOL IOUT = 300 mA - - 0.3 V Output Current IOUT RL = 30Ω - 148 - mA FG Open-Drain Terminal ( TJ = 25℃) Output Leakage Current IFGLEK VFG = 5 V Output Voltage Low VFGOL IFG= 10 mA 5 μA 0.4 V ms Automatic Self-Restart Circuit On Time TON Duty Ratio RDR SP-FD212-A.003 TOFF / TON Version：A.003 - 152 - 6 7 8 Page：3 點晶科技股份有限公司 FD212 SILICON TOUCH TECHNOLOGY INC. Block Diagram & Application Circuit POWER VDD Power FG TACHO GENERATOR HALL FG IC O1 + DRIVERS - LOGIC BLOCK O2 LOCK DETECTION GND Application Notes There is no requirement of the bypass capacitor or Zener Diode between VDD and GND in normal applications. The connection of this capacitor or Zener Diode will increase stability of operation, if required. The FG pin is an open-drained output. The output frequency is corresponding to the rotation speed sensed by the built-in Hall effect position sensor. With suitable output pull-up, the fan tachometer output can be used directly with bipolar or MOS logic for motor speed monitoring/control. 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 of SOT25 and LFCSP8 are depicted as follows: Power Dissipation-Temperature (SOT25) Power Dissipation-Temperature (LFCSP8) 800 Power Dissipation (mW) Power Dissipation (mW) 500 450 400 350 300 250 200 700 600 500 400 300 150 200 100 100 50 0 0 0 25 50 75 100 125 150 Ambient Temperature ( ℃ ) SP-FD212-A.003 0 25 50 75 100 125 Ambient Temperature ( ℃ ) Version：A.003 Page：4 150 點晶科技股份有限公司 FD212 SILICON TOUCH TECHNOLOGY INC. Electrical Characteristic (TA= 25°C) ◎The BOP versus supply voltage curve. ◎The BRP versus supply voltage curve. BOP versus Supply Voltage BRP versus Supply Voltage 20.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 15.0 -5.0 Flu x Den sity ( G) Flu x D en sity (G ) 0.0 10.0 5.0 -10.0 -15.0 0.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 -20.0 Su p p ly Vo ltage (V) Su p p l y Vo l t ag e (V) ◎The Hysteresis versus supply voltage curve. ◎The saturation voltage of output. Saturation Voltage versus Output Current BHYS versus Supply Voltage 6.0 30.0 4.0 20.0 Voltage ( V) Delta Flu x D en si t y (G ) 5.0 25.0 15.0 VO1 VO2 10.0 2.0 5.0 1.0 0.0 2.0 3.0 4.0 5.0 6.0 Su p p l y Vo l t ag e (V) SP-FD212-A.003 7.0 8.0 VDD 3.0 0.0 50.00 100.00 150.00 200.00 Ou tp u t C u r r en t ( m A) Version：A.003 Page：5 點晶科技股份有限公司 FD212 SILICON TOUCH TECHNOLOGY INC. Package Specifications ( LFCSP8 ) □ (LFCSP8 ) Bottom View Top View e1 8 5 8 5 L Hall Sensor Location SXXX E E1 1.0 +- 0.1mm 1 4 b 1 e 4 0.7+-0.1mm D D1 Hall Sensor xxx is the run code. Location 0.12mm A A3 A1 y e Dimensions (mm) SYMBOL SP-FD212-A.003 MIN A A1 A3 b D D1 E E1 e 0.15 1.90 1.55 1.90 0.85 － e1 L Y 0.25 － 0.00 － － Version：A.003 NOM 0.02 0.127 0.20 2.00 1.60 2.00 0.90 0.50 1.50 0.35 － MAX 0.425 0.05 － 0.25 2.10 1.65 2.10 0.95 － － 0.45 0.08 Page：6 點晶科技股份有限公司 FD212 SILICON TOUCH TECHNOLOGY INC. ( SOT-25 ) (5-pin SOT-25 ) D e H C Hall Sensor Location E 0.8+-0.1 L θ1 1.05+-0.1 A2 A A1 b SYMBOL Dimensions in Millimeters MIN NOM A A1 0.90 0.00 1.10 － MAX 1.30 0.15 A2 b C D E e 0.70 0.35 0.08 2.70 1.40 － 0.80 0.40 0.15 2.90 1.60 1.90(TYP) 0.90 0.50 0.25 3.10 1.80 － H L 2.60 0.35 2.80 － 3.00 － θ1 0° 5° 10° 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-FD212-A.003 Version：A.003 Page：7