LA6586FA-BH

Ordering number : ENA2043 LA6586FA Monolithic Linear IC BTL Driver Single-Phase Full-Wave Fan Motor Driver http://onsemi.com Overview The LA6586FA is Single-phase bipolar fan motor is put into silent driving by means of BTL output linear drive, offering high efficiency and power saving by suppressing the reactive current. Lock protection and rotation signal (FG, RD) circuits are built in, ensuring optimum application to small fans for notebook PC, consumer equipment power supply, car audio system, CPU cooler, etc. that require high reliability and low noise. Functions • Single-phase full-wave linear drive by BTL output (gain resistance 1kΩ-360kΩ, 51dB) • Low-voltage operation possible, with wide operating voltage range (2.2 to 14.0V) • Low saturation output (Upper + lower saturation voltage : Vosat (total)=1.2Vtyp, IO=200mA) • Built-in lock protection and automatic reset circuits • Built-in FG&RD outputs • Built-in Hall bias (VHB=1.3V) • Thermal protection circuit • Extra-small package (Micro10) Specitications Absolute Maximum Ratings at Ta = 25 °C Parameter Output voltage Allowable power dissipation Symbol Conditions VCC max Pd max Mounted on a specified board* Ratings Unit 15 V 400 mW Output current IOUT max 0.6 A Output withstand voltage VOUT max 15 V RD/FG output pin output VRD/FG max 15 V IRD/FG max 10 mA IB max 10 mA withstand voltage RD/FG output current HB output current Operating temperature Topr -30 to +90 °C Storage temperature Tstg -55 to +150 °C *Mounted on a specified board : 20mm×10mm×0.8mm, paper phenol Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time. Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current, high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details. Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. Semiconductor Components Industries, LLC, 2013 May, 2013 42512 SY 20120323-S00010 No.A2043-1/7 LA6586FA Recommended Operating Range at Ta = 25 °C Parameter Symbol Conditions Ratings Unit Supply voltage VCC 2.2 to 14.0 V Common-phase input voltage VICM 0 to VCC-1.5 V range of Hall input Electrical Characteristics at Ta = 25 °C, VCC = 12 V Parameter Symbol Ratings Conditions min Circuit current ICC1 During drive (CT = L) ICC2 During lock protection (CT = H) 2.5 Lock detection capacitor charge current ICT1 0.9 Capacitor discharge current ICT2 0.10 Capacitor charge and discharge current ratio RCT CT charge voltage CT discharge voltage OUT output L saturation voltage VOL OUT output H saturation voltage VOH Input offset voltage VOFST Hall input sensitivity VHN Unit typ 3 max 9 mA 5 7.5 mA 1.2 1.5 μA 0.18 0.25 μA 5 6.5 8 - VCT1 1.3 1.5 1.7 V VCT2 0.3 0.5 0.7 V IO = 200 mA 0.25 0.45 V IO = 200 mA 0.95 1.2 3 6 mV 7 15 mV 1.5 1.7 V 0.15 0.3 V 1 30 μA 180 210 °C RCT = ICT1/ICT2 6 Zero peak value V (including offset and hysteresis) Hall bias output L voltage VHB IHB = 5 mA RD/FG input pin L voltage VFG IRD/FG = 5 mA 1.3 RD/FG input pin leak current IFGL VRD/FG = 15 V Overheat protection circuit TSD (*1) Designed target value 150 (*1) The standard is a design target and the measurement with a single unit is not made. Package Dimensions unit : mm 3428 Pd max -- Ta 0.5 0.55 4.9 3.0 10 1 2 0.5 0.16 1.03 0.25 Allowable power dissipation, Pd max -- W 3.0 Specified board : 20mm×10mm×0.8mm3 paper phenol 0.4 0.3 0.2 0.1 0 -30 0.1 0.192 -10 10 30 50 70 90 110 Ambient temperature, Ta -- C SANYO : Micro10 No.A2043-2/7 LA6586FA Truth Table IN- IN+ CT OUT1 H L L H L H L - - OFF OFF - H OUT2 FG RD Mode L L L During rotation H H H During overheat protection Pin Assignment IN+ RD HB FG LA6586FA IN- VCC OUT2 CT GND OUT1 (Top view) Sample Application Circuit Di Cr *4 VCC *1 R2 RD HB FG HB LA6586FA H *2 OUT1 IN+ R2 *5 OUT2 CT GND R1 *3 H IN+ On board element *1 *2 *3 *4 *5 To enhance the reliability, it is necessary to insert a capacitor Cr to secure the regenerative current route. To obtain Hall bias from VCC, carry out 1/2×VCC bias as shown in the figure. Linear driving is made through voltage control of the coil by amplifying the Hall output. When the Hall element output is large, the startup performance and efficiency are improved. Adjustment of the Hall element can reduce the noise further. To obtain Hall bias from the HB pin, carry out constant-voltage bias at about 1.5 V. which enables the Hall element to generate the stable Hall output satisfactory in temperature characteristics. The Hall output amplitude is adjusted with R1. (In the case of VCC = 12 V, *2 proves advantageous in terms of heat generation in IC.) Keep this open when not used. When the wiring from the Hall output to IC Hall input is long, noise may be carried through the wiring. In this case, insert the capacitor as shown in the figure. No.A2043-3/7 LA6586FA Internal Equivalent Circuit VCC 1.5VRG HB IN+ OUT1 H OUT2 IN- GND FG Control circuit Charge discharge RD Discharge pulse Test Circuit Diagram Input current (ICC) A VIN+=3V VCC OUT2 GND CT OUT1 6 IN- 7 FG 8 HB 9 RD 10 IN+ VCC=12V 1 2 3 4 5 VIN-=4V VCT=0 or 2V No.A2043-4/7 LA6586FA CT pin charge/discharge current (ICT) VCC OUT2 GND CT OUT1 6 IN- 7 FG 8 HB 9 RD 10 IN+ VCC=12V 1 2 3 4 5 A VIN-=2V VIN+=0V VCT=0.2 or 2V CT pin charge/discharge voltage (VCT) VCC OUT2 GND CT OUT1 6 IN- 7 FG 8 HB 9 RD 10 IN+ VCC=12V 1 2 3 4 5 Mesure VCT st changeover og ICT A OUT output saturation voltage (VOL, VOH) IO V VIN+=2V VCC OUT2 GND CT OUT1 6 IN- 7 FG 8 HB 9 RD 10 IN+ VCC=12V 1 2 3 4 5 VIN-=1V IO V No.A2043-5/7 LA6586FA Input offset voltage (VOFST) V VCC OUT2 GND CT OUT1 6 IN- 7 FG 8 HB 9 RD 10 IN+ VCC=15V 1 2 3 4 5 V VIN=5V VOFST=(VOUT-5)/360 * 360 is the amplifier gain Hall input sensitivity (VHN) OUT2 GND CT OUT1 6 VCC 7 IN- 8 FG 9 HB 10 RD V IN+ VCC=12V 1 2 3 4 5 Measure tje input voltage at changeover of FG VIN+=1V Hall bias output voltage (VHB) VCC OUT2 GND CT OUT1 6 IN- 7 FG 8 HB 9 RD 10 IN+ VCC=12V 1 2 3 4 5 V No.A2043-6/7 LA6586FA FG, RD input pin L voltage (VFG, RD) OUT2 GND CT OUT1 6 VCC 7 IN- 8 FG 9 HB 10 RD V IN+ VCC=12V 1 2 3 4 5 VIN+=0V VIN-=1V FG, RD input pin leakage current (IFGL, RDL) RFG RRD VIN+=1V OUT2 GND OUT1 6 CT 7 VCC 8 IN- 9 FG 10 HB V RD 15V IN+ VCC=12V 1 2 3 4 5 VIN-=0V VCT =1.8V IFGL,RDL=(15-VFG,RD)/RRD,FG ON Semiconductor and the ON logo are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). 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