UNISONIC TECHNOLOGIES CO., LTD F2867 Advance LINEAR INTEGRATED CIRCUIT VARIABLE SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER DESCRIPTION The UTC F2867 is a single-phase bipolar variable speed driving motor pre-driver that works with external PWM signal. A highly efficient, highly silent and low power consumption motor driver circuit can be achieved with a few external parts. This product is optimal for driving large scale fan motors requiring large air flow and large current such as servers and consumer appliances. TSSOP-16 FEATURES * Pre-driver for single-phase full-wave drive Low-saturation drive using external PMOS-NMOS enables high-efficiency low power-consumption drive. * External PWM input enabling variable speed control Separately-excited upper direct PWM (f=30kHz) control method enabling highly silent speed control. * Current limiting circuit incorporated Chopper type current limit at start. * Reactive current cut circuit incorporated Reactive current before phase change is cut to enable silent and low power-consumption drive. * Minimum speed setting pin Minimum speed can be set by set with external resistor. * Soft start setting pin * Lock protection and automatic reset functions incorporated * FG (rotation speed detection) output * Thermal shutdown circuit incorporated ORDERING INFORMATION Ordering Number F2867G-P16-R www.unisonic.com.tw Copyright © 2016 Unisonic Technologies Co., Ltd Package TSSOP-16 Packing Tape Reel 1 of 6 QW-R109-038.a F2867 Advance MARKING PIN CONFIGURATION PIN DESCRIPTION PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PIN NAME OUT2P OUT2N VCC SENSE RMI VTH CPWM FG ININ+ CT S-S 5VREG SGND OUT1N OUT1P LINEAR INTEGRATED CIRCUIT DESCRIPTION output2 pmos drive output2 nmos drive power supply current limiting detection pin minimum speed setting pin speed control pin pin to connect the capacitor for generation of the PWM basic frequency rotation speed detection pin Hall signal input Hall signal input pin to connect the lock detection capacitor pin to connect the soft-start setting capacitor 5V reference voltage power-GND output1 nmos drive output1 pmos drive UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 6 QW-R109-038.a F2867 Advance LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 6 QW-R109-038.a F2867 Advance LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATING (TA=25°C unless otherwise specified) PARAMETER SYMBOL VCC Pin Maximum Supply Voltage VCC max OUTN Pin Maximum Output Current IOUTN max OUTP Pin Maximum Sink Current IOUTP max OUT Pin Output Withstand Voltage VOUT max VTH, RMI Pins Withstand Voltage VVTH, VRMI max S-S Pin Withstand Voltage VS-S max FG Output Pin Withstand Voltage VFG max FG Pin Maximum Output Current IFG max 5VREG Pin Maximum Output Current I5VREG max Allowable Power Dissipation (with specified substrate (Note 1)) Pd max Operating Temperature (Note 2) Topr Storage Temperature Tstg Notes: 1. All typical values are at VCC=3.3V or VCC=5.0V, and TA=25°C. 2. Specified substrate: 114.3mm×76.1mm×1.6mm, glass epoxy board. 3. TJ max=150°C must not be exceeded. UNIT V mA mA V V V V mA mA mW °C °C RECOMMENDED OPERATING CONDITIONS (TA=25°C unless otherwise specified) PARAMETER VCC Supply Voltage VTH, RMI Input Voltage Range Hall Input Common-Phase Input Voltage Range RATINGS 18 20 20 18 7 7 19 10 20 800 -30 ~ +95 -55 ~ +150 SYMBOL VCC VTH, RMI VICM RATINGS 5.5~16 0~5 0.2~3 UNIT V V V ELECTRICAL CHARACTERISTICS (VCC=12V, TA=25°C unless otherwise specified) PARAMETER SYMBOL ICC1 Circuit Current ICC2 5VREG Voltage 5VREG Current Limiting Voltage VLIM CPWM Pin “h” Level Voltage VCPWMH CPWM Pin “L” Level Voltage VCPWML CPWM Pin Charge Current ICPWM1 CPWM Pin Discharge Current ICPWM2 CPWM Oscillation Frequency FPWM CT Pin “H” Level Voltage VCTH CT Pin “L” Level Voltage VCTL CT Pin Charge Current ICT1 CT Pin Discharge Current ICT2 CT Pin Charge/Discharge RCT Ratio S-S Pin Discharge Current IS-S OUTN Output H-level Voltage VONH OUTN Output L-level Voltage VONL OUTP Output L-level Voltage VOPL Hall Input Sensitivity FG Output L-level Voltage FG Pin Leakage Current VTH/RMI Pin Bias Current TEST CONDITIONS During drive During lock protection I5VREG = 5mA MAX 9.5 9.5 5.10 215 3.2 1.3 36 33 VCT=0.5V VCT=3.5V 2.8 0.9 1.6 0.16 TYP 7.5 7.5 4.95 200 3.0 1.1 30 27 30 3.0 1.1 2.0 0.20 3.2 1.3 2.5 0.25 UNIT mA mA V mV V V μA μA kHz V V μA μA ICT1/ICT2 8 10 12 times VCPWM=0.5V VCPWM=3.5V C=220PF VS-S=1V IO=10mA IO=10mA IO=10mA IN+, IN- differential voltage VHN (including offset and hysteresis) VFGL IFG=5mA IFGL VFG=19V IVTH/IRMI CPWM=VTH/RMI=2V UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 5.5 5.5 4.80 185 2.8 0.9 24 21 0.4 0.5 0.6 VCC-0.85 VCC-1.00 0.9 1.00 0.5 0.65 μA V V V ±10 ±20 mV 0.15 0.30 20 0.1 V μA μA 4 of 6 QW-R109-038.a F2867 Advance LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT Notes: *1. Power−GND wiring SGND is connected to the control circuit power supply system. *2. Power stabilization capacitor For the power stabilization capacitor on the signal side, use the capacitance of 1μF or more. Connect VCC and GND with a thick and shortest pattern. *3. Power stabilization capacitor on the power side For the power stabilization capacitor on the power side, use the capacitance of 1μF or more. Connect the power supply on the power side and GND with a thick and shortest pattern. *4. IN+, IN- pins Hall signal input pin. Wiring should be short to prevent carrying of noise. If noise is carried, insert the capacitor between IN+ and IN- pins. The Hall input circuit functions as a comparator with hysteresis (15mV). This also has a soft switch section with ±30mV (input signal differential voltage). It is also recommended that the Hall input level is minimum 100mV (p-p). UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 6 QW-R109-038.a F2867 Advance LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT (Cont.) Notes: *5. CPWM pin Pin to connect the capacitor for generation of the PWM basic frequency The use of CP=220pF causes oscillation at f=30kHz, which is the basic frequency of PWM. As this is used also for the current limiting canceling signal, be sure to connect the capacitor even when the speed control is not made. *6. RMI pin Minimum speed setting pin. Perform pull-up with 5VREG when this pin is not to be used. If the IC power supply is likely to be turned OFF first when the pin is used with external power supply, be sure to insert the current limiting resistor to prevent inflow of large current. (The same applies to the VTH pin.) *7. VTH pin Speed control pin. Connect this pin to GND when it is not used (at full speed). For the control method, refer to the timing chart. For control with pulse input, insert the current limiting resistor and use the pin with the frequency of 20k~100kHz (20kHz~50kHz recommended). *8. SENSE pin Current limiting detection pin. When the pin voltage exceeds 0.2V, the current is limited and the operation enters the lower regeneration mode. Connect this pin to GND when it is not to be used. *9. FG pin Rotation speed detection pin. This is an open collector output, which can detect the rotation speed from the FG output according to the phase changeover. Keep this pin open when it is not to be used. *10. CT pin Pin to connect the lock detection capacitor. The constant-current charge and discharge circuits incorporated cause locking when the pin voltage becomes 3.0V and unlocking when it is 1.1V. Connect the pin to GND when it is not to be used (locking not necessary). *11. S-S pin Pin to connect the soft-start setting capacitor. Connect the capacitor between 5VREG and S-S pin. This pin enables setting of the soft start time according to the capacity of the capacitor. See the timing char. Connect the pin to GND when it is not to be used. UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 6 QW-R109-038.a