Ordering number: EN 2552C Monolithic Digital IC LB1663, 1663M, 1666 2-Phase Unipolar Brushless Motor Drivers Applications 2-Phase unipolar brushless motor (ex. DC brushless fan motor) drivers Package Dimensions unit : mm 3098A - DIP10S [LB1663] Features and Functions . Protection against motor lock and automatic return can be with a minimum number of external parts. . provided The LB1663, LB1663M, LB1666 can be operated from . . . . . either 12 V or 24 V power supply by changing an external resistor. Possible to connect a Hall element direct to the LB1663, LB1663M, LB1666. Built-in output transistors with output current 1.5 A. Built-in rotation detect function (Drive mode: ‘‘L’’, Stop mode: ‘‘H’’) Built-in thermal shutdown With radio noise reduction pin SANYO : DIP10S unit : mm 3054A - DIP16F [LB1666] SANYO : DIP16F unit : mm 3097 - MFP16FS [LB1663M] SANYO : MFP16FS SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN N3097HA(II)/7037KI/6197TA,TS No.2552 - 1/6 LB1663, 1663M, 1666 Specifications [LB1663] Absolute Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings t % 20 ms Unit Maximum input current ICC max Output supply voltage VO max –0.3 to +85 Maximum output current 200 mA V IO max 1.5 A RD flow-in current IRD 10 mA RD supply voltage VRD 50 V Pd max 1.2 W Allowable power dissipation Operating temperature Topr –30 to +80 °C Storage temperature Tstg –55 to +125 °C Rating Unit Allowable Operating Ranges at Ta = 25°C Parameter Symbol Input current range Conditions ICC Common-mode input voltage range 6.0 to 50.0 VICM mA 0 to VIN -1.5 V Electrical Characteristics at Ta = 25°C, ICC = 10 mA Parameter Output withstand voltage 1 Output withstand voltage 2 Symbol VOR VO (sus) VO (sat)1 VO (sat)2 VO (sat)3 VIN Voff IBA VRD (sat) IC1 IC2 VTH1 VTH2 Output saturation voltage VIN input voltage Amp input offset voltage Amp input bias current RD output saturation voltage C flow-out current C discharge current Comparator input threshold voltage Conditions IO = 0.1 A IO = 0.5 A IO = 1.0 A IO = 1.5 A ICC = 7.0 mA min 80 65 typ 0.95 1.15 1.40 6.7 0 1.20 1.50 2.00 7.0 +7 0.1 3.0 0.44 0.8 VIN 0.45 VIN 0.2 3.9 0.59 0.83 0.48 6.4 –7 –250 IRD = 5 mA 2.1 0.31 0.77 0.42 max Unit V V V V V V mV nA V µA µA V V [LB1663M] = Preliminary Absolute Maximum Ratings at Ta = 25°C Parameter Symbol Conditions t % 20 ms Ratings Maximum input current ICC max Output supply voltage VO max –0.3 to +85 Maximum output current 200 Unit mA V IO max 1.5 A RD flow-in current IRD 10 mA RD supply voltage VRD 50 V 0.9 W Allowable power dissipation Pd max * With specified board 1.2 W Operating temperature Topr –30 to +80 °C Storage temperature Tstg –55 to +125 °C * Note: 20 × 30 × 1.5 mm3 glass epoxy board No. 2552- 2/6 LB1663, 1663M, 1666 Allowable Operating Ranges at Ta = 25°C Parameter Input current range Common-mode input voltage range Symbol Ratings Unit ICC Conditions 6.0 to 50.0 mA VICM 0 to VIN-1.5 V Electrical Characteristics at Ta = 25°C, ICC = 10 mA Parameter Output withstand voltage 1 Output withstand voltage 2 Output saturation voltage VIN input voltage Amp input offset voltage Amp input bias current RD output saturation voltage C flow-out current C discharge current Comparator input threshold voltage Symbol VOR VO (sus) VO (sat)1 VO (sat)2 VO (sat)3 VIN V off IBA VRD (sat) IC1 IC2 VTH1 VTH2 Conditions IO = 0.1 A IO = 0.5 A IO = 1.0 A IO = 1.5 A ICC = 7.0 mA min 80 65 typ 0.95 1.15 1.40 6.7 0 1.20 1.50 2.00 7.0 +7 0.1 3.0 0.44 0.8 VIN 0.45 VIN 0.2 3.9 0.59 0.83 0.48 6.4 –7 –250 IRD = 5 mA 2.1 0.31 0.77 0.42 max Unit V V V V V V mV nA V µA µA V V [LB1666] Absolute Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings t % 20 ms Unit Maximum input current ICC max Output supply voltage VO max –0.3 to +85 Maximum output current IO max 1.5 A IRD 10 mA RD flow-in current RD supply voltage Allowable power dissipation 200 mA V VRD 50 V Pd max 2.0 W Operating temperature Topr –30 to +80 °C Storage temperature Tstg –55 to +125 °C Allowable Operating Ranges at Ta = 25°C Parameter Input current range Common-mode input voltage range Symbol Ratings Unit ICC Conditions 6.0 to 50.0 mA VICM 0 to VIN-1.5 V Electrical Characteristics at Ta = 25°C, ICC = 10 mA Parameter Output withstand voltage 1 Output withstand voltage 2 Output saturation voltage VIN input voltage Amp input offset voltage Amp input bias current RD output saturation voltage C flow-out current C discharge current Comparator input threshold voltage Symbol VOR VO (sus) VO (sat)1 VO (sat)2 VO (sat)3 VIN Voff IBA VRD (sat) IC1 IC2 VTH1 VTH2 Conditions IO = 1.0 A IO = 0.5 A IO = 1.0 A IO = 1.5 A ICC = 7.0 mA min 80 65 6.4 –7 –250 IRD = 5 mA 2.1 0.21 0.77 0.42 typ max 0.95 1.15 1.40 6.7 0 1.20 1.50 2.00 7.0 +7 0.1 3.0 0.30 0.8 VIN 0.45 VIN 0.2 3.9 0.39 0.83 0.48 Unit V V V V V V mV nA V µA µA V V No. 2552- 3/6 LB1663, 1663M, 1666 Pin Assignment Top view Equivalent Circuit Block Diagram and Sample Application Circuit Constant current circuit (Note) *1: Radio noise reduction capacitor: 0.01 to 0.1 µF. *2: Use a less leaky capacitor. No. 2552- 4/6 LB1663, 1663M, 1666 Truth Table IN– C OUT1 OUT2 H L L H L L H L L H H L H H H L H H H H Output Protection For C marked with 1 µF Allowable power dissipation, Pd max – W IN+ Pd max – Ta Ambient temperature, Ta – °C Lock detect time Approximately 2s Lock protect time (output on) Approximately 1s Lock protect time (output off) Approximately 6s Pin Description Pin Name Function VIN A limiting resistor is connected across VCC and VIN to adjust the current flowing into VIN to be 6 mA to 50 mA, which generates a voltage (6.7 V) on this pin and supplies a regulated voltage to the IC system and a Hall element. IN+ IN– Pins for accepting output from Hall element. Common-mode input voltage range: 0 to VIN-1.5 V Offset voltage: ± 7 mV OUT1 OUT2 Output transistors of output pins are Darlington-connected. External capacitors or Zener diodes must be connected to protect output transistors. RD Open collector output (Drive mode - ‘‘L’’, Stop mode - ‘‘H’’) B1 B2 Base pins for output transistors of Darlington connection. A capacitor must be connected in an application where radio noise becomes a problem. C Capacitor pin for automatic return function When the rotation is stopped by an overload, the voltage on this pin is increased, turning OFF the output. Automatic return from output ‘‘stop’’ to ‘‘drive’’ occurs by making the load proper. The lock detect time can be set by changing the capacitor constant. GND Ground No. 2552- 5/6 LB1663, 1663M, 1666 Rotation Output on Output off Output on Output off Rotation Lock release Lock Automatic return circuit C pin voltage 1 When a fan is rotating, the capacitor is charged at 3 µA (typ) and discharged through the C with pulses according to the rotational speed. 2 When a fan is locked, no discharge occurs through the C and the C voltage rises, turning OFF the output at 0.8 × VIN. 3 When the output is turned OFF, discharge occurs through the C at 0.44 µA (typ). If the lock is not released when the C voltage drops to VTH2, the capacitor is charged to VTH1 again. (At this moment, the output is turned ON.) These operations 2, 3 repeated on a cycle of approximately t on : t off = 1 : 6 protect a motor. 4 If the lock is released when the C voltage drops to VTH2, the output is turned ON, starting rotation. No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. Anyone purchasing any products described or contained herein for an above-mentioned use shall: 1 Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: 2 Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of November, 1997. Specifications and information herein are subject to change without notice. No. 2552- 6/6