UNISONIC TECHNOLOGIES CO., LTD F2970 Preliminary LINEAR INTEGRATED CIRCUIT FOR FAN MOTOR SINGLE-PHASE FULL-WAVE DRIVER DESCRIPTION The UTC F2970 is a single-phase full-wave bipolar driver control IC with excellent efficiency for fan motor. SOP-18 FEATURES * Single-phase full-wave drive (16V to 1.2A transistors are built in) * Speed adjustment function by thermistor input and external signal incorporated →Enables silent and low-vibration variable speed control through direct PWM control with separately-excited upper tR * Kick-back absorption circuit are built in * Current limiter function (The limiter value determined with Rf, limit at IO=480mA with RL=1Ω connection,) * Low-consumption, low-loss, and low-noise drive enabled by the soft switching circuit during phase shift * HB incorporated * Lock protection and automatic reset functions incorporated * FG (rotation detection) output * Regeneration Di incorporated with less external parts * Thermal shutdown circuit incorporated ORDERING INFORMATION Note: Ordering Number Lead Free Halogen Free F2970L-S18-T F2970G-S18-T F2970L-S18-R F2970G-S18-R xx: Output Voltage, refer to Marking Information. www.unisonic.com.tw Copyright © 2013 Unisonic Technologies Co., Ltd Package Packing SOP-18 SOP-18 Tube Tape Reel 1 of 6 QW-R109-035.a F2970 Preliminary PIN CONFIGURATION OUT2 1 LINEAR INTEGRATED CIRCUIT 18 P-GND VM 2 17 OUT1 VCC 3 16 S-GND WH 4 15 6VREG WL 5 VTH 6 13 IN- RMI 7 12 HB P-IN 8 11 CPWM 9 10 FG UTC F2970 14 CT IN+ PIN DESCRIPTION PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 PIN NAME OUT2 VM VCC WH WL VTH RMI P-IN CPWM FG IN+ HB INCT 6VREG S-GND OUT1 P-GND DESCRIPTION Output2 Sense pin of current limiter Power supply OSC input OSC output Variable speed function input Lowest speed setting voltage Dricte PWM speed control pin PWM oscillator frenquency setting capacitor Speed detection output The hall sensor input Power the hall sensor 1.25V The hall sensor input Setting lock protection time VREF 6V Control system GND Output1 Motor system GND UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 6 QW-R109-035.a F2970 Preliminary LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM FG Overheat Protection RMI VTH CPWM P-IN H: Rotation mode Comparator + - L: Regeneration mode Current control circuit VCC VM OUT Constant voltage Delay circuit 6VREG HB + Controller 1.25V OUT Delay circuit IN+ INHysteresis AMP S-GND Oscillation Charge/ discharge CT P-IN RMI VTH WH WL CPWM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw P-GND 3 of 6 QW-R109-035.a F2970 Preliminary LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATING (TA=25°C) PARAMETER SYMBOL RATINGS UNIT Maximum supply Voltage VCC VCC 17 V Maximum supply Voltage VM VM 17 V OUT Pin Maximum Output Current IOUT 1.2 A OUT Pin Output Withstand Voltage VOUT 18 V Maximum Output Current of HB IHB 10 mA VTH, RMI Input Pin Withstand Voltage VTH, RMI 7 V P-IN Input Pin Withstand Voltage VP-IN VCC V FG Output Pin Output Withstand Voltage VFG 18 V FG Output Current IFG 10 mA Allowable Power Dissipation Specified substrate (Note 1) PD 0.8 W Operating Temperature TOPR -30~90 °C Storage Temperature TSTG -55~150 °C Notes: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. 1. Specified substrate: 30mm×30mm×0.8mm, paper phenol. RECOMMENDED OPERATING RANGES (TA=25°C) PARAMETER VCC Supply Voltage VM Supply Voltage VTH, RMI Input Level Voltage Range P-IN Input Level Voltage Range Triangular Wave Input Range Hall Input Common Phase Input Voltage Range SYMBOL VCC VM VTH, RMI VP-IN VRM VICM RATINGS 4.5~16 3.5~16 0~6 0~VCC 0.5~4 0.2~3 UNIT V V V V V V ELECTRICAL CHARACTERISTICS (TA=25°C, VCC=12V, Rf=0Ω, unless otherwise specified.) PARAMETER Circuit Current HB Voltage 6VREG Voltage Pin-CT H Level Voltage Pin-CT L Level Voltage Pin-CT Charge Current Pin-CT Discharge Current CT Charge/Discharge Current Ratio OUT Output L Saturation Voltage OUT Output H Saturation Voltage Current Limiter SYMBOL ICC1 ICC2 VHB V6VREG VCTH VCTL ICT1 ICT2 RCT VOL VOH VRf TEST CONDITIONS During Drive During Lock Protection IHB=5mA I6VREG=5mA IO=200mA IO=200mA, Rf=1Ω Zero Peak Value (Including Offset and Hysteresis) FG Output Pin L Voltage VFG IFG=5mA FG Output Pin Leak Current IFGL VFG=7V Design Guarantee Value Overheat Protection THD (Note 1) Note: 1. Design target value and no measurement was made. Sensitivity of Hall Input VHN UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 12 11 1.12 5.85 3.4 1.4 TYP 15 14 1.22 5.95 3.6 1.6 2.2 0.22 6.8 0.1 0.6 480 MAX 18 17 1.32 6.10 3.8 1.8 UNIT mA mA V V V V µA µA 0.2 0.8 V V mV 10 20 mV 0.2 0.3 30 V µA 180 °C 4 of 6 QW-R109-035.a F2970 Preliminary LINEAR INTEGRATED CIRCUIT TRUTH TABLE VTH L (OPEN) PIN ININ+ CT L H L L L H L L H L H L L H H H L L H L H H L H L H H Notes: 1.VTH, P-IN=L means VTH, P-IN<CPWM 2.VTH, P-IN=H means VTH, P-IN>CPWM OUT1 H L OFF L OFF L OFF L UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw OUT2 L H L OFF L OFF L OFF FG L OFF L OFF L OFF L OFF Mode Running-Drive Running-Regeneration Output Regeneration Mode with External Signal Lock Protection 5 of 6 QW-R109-035.a F2970 Preliminary LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT Rf *4 CM VCC VCC *8 Hall IN- *7 *5 FG IN+ 6VREG *3-3 R6 OUT1 R4 PIN *3-1 R5 *2 VM HB R1 C=2200~4700pF R=20~50Ω UTC F2970 WH PWM-IN R7 R2 R3 WL RTU *3 *3-2 RMI R8 CT CT=0.47~1µF R1 WH R2 OUT2 VTH PGND TH *1 WL R3 CP=100pF *f=25kHz *6 CPWM SGND 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-R109-035.a