F1962

UNISONIC TECHNOLOGIES CO., LTD F1962 Preliminary LINEAR INTEGRATED CIRCUIT SINGLE-PHASE FULL-WAVE MOTOR DRIVER IC DESCRIPTION The UTC F1962 is a Single-phase full-wave motor driver designed specially for small DC fans. For example, CPU cooling fans. FEATURES * Wide Operating Voltage 5V or 12V Are Both Acceptable * Built-In Hall Amplifier And Hall Bias Circuit * Built-In Lockup And Thermal Protection With Automatic Recovery Circuits * Rotation Detection Output * Start/Stop Pin For Standby Mode Control MSOP-10 ORDERING INFORMATION Ordering Number F1962G-SM2-R Package MSOP-10 Packing Tape Reel www.unisonic.com.tw Copyright © 2010 Unisonic Technologies Co., Ltd 1 of 9 QW-R109-017,Ba F1962 PIN CONFIGURATION Preliminary LINEAR INTEGRATED CIRCUIT ININ+ CT 1 2 3 10 9 8 7 FG HB ST VCC OUT1 4 GND 5 6 OUT2 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 9 QW-R109-017,Ba F1962 BLOCK DIAGRAM Preliminary LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 9 QW-R109-017,Ba F1962 PARAMETER Maximum Supply Voltage Maximum Output Current Maximum Output Withstand Voltage Maximum Output Withstand Voltage Preliminary LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATING (Ta=25℃) SYMBOL RATINGS UNIT VCC(max) 17 V IOUT(max) 0.5 A VOUT(max) 15 V VF(max) 17 V IF(max) 5 mA Maximum Output Current 5 mA IR(max) HB Maximum Output Current IB(max) 10 mA ST Maximum Input Voltage VST(max) 15 V Allowable Power Dissipation (With Specified Substrate( Note 2)) PD 850 mW Operating Temperature TOPR -30 ~ +85 ℃ Storage Temperature TSTG -40 ~ +150 ℃ Note: 1. 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. 2. Specified substrate: 114.3×76.2×1.5mm3 glass epoxy. 3. The device is guaranteed to meet performance specification within 0℃~70℃ operating temperature range and assured by design from –20℃~85℃. RECOMMANDED OPERATING RATINGS (Ta=25℃) PARAMETER Power Supply Voltage ST Input High Level Voltage ST Input Low Level Voltage Hall Input Common Mode Voltage Range SYMBOL VCC STH STL VICM RATINGS 3.8 ~ 16.8 3 ~ 14 -0.3 ~ +0.4 0.2 ~ Vcc-1.5 UNIT V V V V ELECTRICAL CHARACTERISTICS (Ta=25℃, VCC=5V) PARAMETER Current Drain Lockup Detection Capacitor Charge Current Capacitor discharge current Capacitor Charge/Discharge Current Ratio CT Charge Voltage CT Discharge Voltage Output Low Level Voltage Output High Level Voltage Hall Input Sensitivity Output Pin Low Voltage Output Pin Leakage Current HB Output Low Voltage ST Pin Input Current SYMBOL ICC TEST CONDITIONS In drive mode (CT=[L], ST=[L]) In lockup protection mode (CT=[H], ST=[L]) In standby mode (ST=[H]) MIN TYP 6.5 2.2 110 1.9 0.32 RCD=ICT1/ICT2 5.0 2.55 1.6 IO=200mA IO=200mA Zero peak value (Including offset and hysteresis) IRD, IFG=5mA VRD, VFG=15V IHB=5mA VST=5V 3.9 2.8 0.46 6.0 2.75 1.8 0.2 4.1 7 0.1 1.0 75 MAX 9.1 3.1 150 3.7 0.60 7.0 2.95 2.0 0.3 15 0.3 30 1.3 100 V V V V mV V μA V μA UNIT mA mA μA μA μA ICT1 ICT 2 RCT VCT VCT2 VOL VOH VHN VFG IFGL VHBL IST 1 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 9 QW-R109-017,Ba F1962 TRUTH TABLE ST H L INH L IN+ L H CT L H Preliminary LINEAR INTEGRATED CIRCUIT OUT1 off H L off OUT2 off L H off FG off H L HB off L L Mode Standby Rotating Lockup protection activated DESIGN REFERENCE (1) VCC pin Power supply pin for whole IC. (2) OUT1, OUT2 pins Single-phase coil output pins. Bipolar forward or reverse drive output determined by OUT1 or OUT2 high. Built-in regenerative circuit that regenerates kickback current between lower side NPN outputs if a diode is used for protection against reverse connection. (3) IN–, IN+ pins Hall signal input pins The Hall signal is amplified into a square wave by the Hall amplifier with hysteresis characteristics of ±3.5 mV (typ.). The Hall signal amplitude should be 70 mV or more. (4) CT pin This pin serves timing capacitor connecting pin between CT and GND. The capacitor determines timing of the built-in lockup protection circuit for preventing coil burnout when motor is locked. Once normal motor rotating condition is restored, the automatic recovery circuit will reset itself. Adjusting the capacitance alters the lockup detection time. When a 0.47 mF capacitor is connected between CT and GND Lockup detection time Lockup protection time/automatic recovery time :approx. 0.5s :approx. 0.16s (output ON) :approx. 1s (output OFF) Connecting this pin to ground when lockup function is not used (6) FG pin Open-collector output pin for rotation frequency detection. When IN– = High and IN+ = Low, then FG = Low When IN– = Low and IN+ = High, then FG = High (7) ST pin and HB pin ST pin: When input to this pin is High, motor drive is stopped (OUT is high impedance). HB pin: Hall bias switching pin. At ST pin High input, Hall bias is switched to reduce current drain in fan standby mode. If not used, both pins should be open. (8) Thermal protection circuit When junction temperature TJ of IC is or over about 150℃, output current limiter is activated to protect against damage. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 9 QW-R109-017,Ba F1962 Preliminary LINEAR INTEGRATED CIRCUIT SAMPLE APPLICATION CIRCUIT Startup UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 9 QW-R109-017,Ba F1962 Preliminary LINEAR INTEGRATED CIRCUIT SAMPLE APPLICATION CIRCUIT(Cont.) Locked-up protection and automatic recovery curves Locked Output ON Released OUT FG CT Start or stop curve UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 7 of 9 QW-R109-017,Ba F1962 Upper Side Output Saturation Voltage, VOUT(sat)H (V) Lower Ride Output Saturation Voltage, VOUT(sat)L (V) Allowable Power Dissipation, Pdmax (mW) TYPICAL CHARACTERISTICS UNISONIC TECHNOLOGIES CO., LTD Input Current, IIN (µA) Current Drain, Icc (mA) www.unisonic.com.tw Preliminary VRD, VHB (V) 8 of 9 LINEAR INTEGRATED CIRCUIT QW-R109-017,Ba F1962 Preliminary LINEAR INTEGRATED CIRCUIT 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 9 of 9 QW-R109-017,Ba