Ordering number : ENA0470A Monolithic Digital IC LB1801CL Stepping Motor Driver IC Overview The LB1801CL is a 2-channel low-saturation drive low-voltage operation forward/reverse motor driver IC. Its ultraminiature package makes it optimal for 2-phase excitation drive of 2-phase bipolar stepping motors which are commonly used in various portable devices such as digital still cameras. Features • Low saturation voltage, VO (sat) = 0.3V typ. at IO of 150mA • Built-in through current prevention circuit • Zero current drawn in standby mode • On-chip index comparator (open collector output) • On-chip ENA interlocked power supply • Built-in thermal shutdown circuit • ECSP2828-12 ultraminiature leadless package (2.8mm×2.8mm×0.8mm typ) Absolute Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings Unit Maximum power supply voltage VCC max Output application voltage VOUT max OUT1, OUT2, OUT3, OUT4 pin Input application voltage VIN max ENA, IN1, IN2 pin GND pin outflow current I GND Per channel Allowable power dissipation Pd max Mounted on a circuit board * Operating temperature Topr -30 to +75 °C Storage temperature Tstg -40 to +150 °C -0.3 to +8.0 V VCC+VSF V -0.3 to +8.0 V 300 mA 450 mW * Mounted on a specified board: 20.0mm×10.0mm×0.8mm, paper phenol Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, AV equipment, communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for applications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer' s products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer' s products or equipment. 60607 MS IM / D1306 TI IM 20060222-S00018 No.A0470-1/9 LB1801CL Allowable Operating Range at Ta = 25°C Parameter Symbol Power supply voltage VCC Input high level voltage VIH Input low level voltage VIL Allowable comparator output current ICOMP Conditions Ratings Unit 2.2 to 7.5 ENA, IN1, IN2 pin V 1.5 to 7.5 V -0.3 to +0.3 V 1.0 mA Electrical Characteristics at Ta = 25°C, VCC = 3.3V Parameter Symbol Ratings Conditions min Power source current Output saturation voltage typ ICC0 ENA = 0V, VIN = 3V or 0V 0.1 1 µA ICC1 ENA = 3V, VIN = 3V or 0V 17 18.5 mA VOUT1 ENA = 3V, VIN = 3V or 0V, 0.23 0.3 IOUT = 100mA VOUT2 V ENA = 3V, VIN = 3V or 0V, 0.5 IOUT = 200mA * Input current unit max IIN VIN = 3V 60 70 IENA VENA = 3V 60 70 µA Index comparator Internal reference voltage VINP Common-mode input voltage range VCOM 0 Input hysteresis width VHYS1 0.15 Low-level output voltage VLCOMP Sink = 1mA IBIAS ∆ (VIN-VBIAS) = 0.2V 1.30 1.35 1.40 V VCC V 0.22 0.25 V 0.2 0.4 V LNA interlocked power supply Current capacity 50 mA Spark killer diode µA Reverse current IS(leak) Forward voltage VSF IOUT = 200mA * 1.7 V Operating temperature TSD1 * 170 °C Hysteresis width TSD2 * 20 °C 1 Thermal shutdown *: Design target value and no measurement was made. Package Dimensions unit : mm (typ) 3324 SIDE VIEW 2.8 BOTTOM VIEW (0.425) TOP VIEW 2 0.65 2.8 2 0.35 1 1 0.4 0.8 0.015 0.8 (0.8) SIDE VIEW SANYO : ECSP2828-12 No.A0470-2/9 LB1801CL Pin Assignment Pd max -- Ta 1 OUT2 2 Allowable power dissipation, Pd max -- mW OUT1 ENA GND 500 12 11 10 IN2 9 IN1 8 INM LB1801CL OUT3 5 4 6 7 COMP 400 300 270 200 100 Mounted on a specified board : 20.0×10.0×0.8mm3, paper phenol 0 -30 BIAS VCC OUT4 3 450 0 30 60 Ambient temperature, Ta -- °C 75 90 ILB01793 Top view 45kΩ 90kΩ Control Block circuit IN1 35kΩ OUT1 Stepping motor OUT2 50kΩ 95kΩ IN2 Thermal shutdown circuit VCC 1µF Block Diagram 35kΩ OUT3 50kΩ 10kΩ 10kΩ ENA 95kΩ OUT4 300Ω GND INM 1.35V COMP BIAS No.A0470-3/9 LB1801CL Truth Table Input Output Remarks ENA IN1 IN2 OUT1 OUT2 OUT3 OUT4 BIAS COMP L - - OFF OFF OFF OFF OFF OFF L L H L H L L H H L L H ON ON H H L H L H H L L H H L H Standby 2 phase excitation Pin Functions Pin No. Pin Name Pin Functions 1 OUT1 H bridge output pin 2 OUT2 H bridge output pin 3 OUT3 H bridge output pin 4 OUT4 H bridge output pin 5 VCC Power supply pin 6 BIAS Position sensor power pin 7 COMP 8 INM Comparator input pin 9 IN2 Input pin for controlling outputs OUT3 and OUT4 10 IN1 Input pin for controlling outputs OUT1 and OUT2 11 ENA Enable pin (H input: active, L input: idle) 12 GND Ground pin Comparator output pin No.A0470-4/9 LB1801CL Timing Chart ENA IN1 IN2 OUT1 OUT2 OUT3 OUT4 [Timing Chart for Stepping Motor 2-Phase Excitation] No.A0470-5/9 LB1801CL Position Detecting Comparator Application Circuit Example 1 a) Circuit diagram BIAS VCC Microcontroller power supply Tr INM - COMP + IC peripheral: Position sensor block IC interior: Position detecting circuit b) Timing chart VCC ENA BIAS 1.35V Hysteresis width: 0.2V INM Transistor operating range Microcontroller power supply COMP No.A0470-6/9 LB1801CL Position Detecting Comparator Application Circuit Example 2 a) Circuit diagram BIAS Microcontroller power supply VCC INM COMP Tr + IC peripheral: Position sensor block IC interior: Position detecting circuit b) Timing chart VCC ENA BIAS Transistor operating range 1.35V INM Hysteresis width: 0.2V Microcontroller power supply COMP No.A0470-7/9 LB1801CL Current Drain VCC-ICC Ta=25°C ENA=3.0V No load (OPEN) 20 ) A=3V (EN I CC1 15 10 5 ICC0 (ENA=0V) 0 0 1 2 3 4 5 6 0.4 0.3 0.2 0.1 0.02 0.04 120 1 I IN NA IE 60 40 0.06 0.08 Bias current, Ibias -- A 0.10 ILB01799 Saturation Voltage Characteristics VCC=3.3V Ta=25°C 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0 0 2 4 6 0 8 Input voltage, VIN/VENA -- V 0.05 0.2 0.1 0.20 ILB01801 VCC=3.3V Ta=25°C 3.0 Output voltage, VOUT1 -- V 0.3 0.15 Input Threshold Characteristics 3.5 VCC=3.3V Ta=25°C 0.4 0.10 Output current, IOUT -- mA ILB01800 COMP Pin Saturation Voltage 0.5 Low-level voltage, VCOMP -- V 0.5 0 Output saturation voltage, VO(sat) -- V Input current, IIN/IENA -- µA 140 20 2.5 2.0 1.5 1.0 0.5 0 0 0 0.2 0.4 0.6 0.8 Sink current, Isink -- mA 1.0 ILB01802 Comparator Reference Voltage 2.0 Comparator reference voltage, Vref -- V 0.6 2.0 160 80 0.7 ILB01798 Input Current Characteristics 100 0.8 8 VCC=3.3V Ta=25°C 180 VCC=3.3V Ta=25°C 0.9 0 7 Power supply voltage, VCC -- V 200 Bias Pin Saturation Voltage 1.0 Bias pin saturation voltage, Vbias -- V Power supply current, ICC -- mA 25 0 0.5 1.0 1.5 Input voltage, VENA -- V 2.0 2.5 ILB01803 Ta=25°C 1.8 1.6 1.4 1.2 1.0 0.8 0.6 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 Power supply voltage, VCC -- V 3.8 4.0 ILB01804 No.A0470-8/9 LB1801CL SANYO Semiconductor Co.,Ltd. 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 SANYO Semiconductor Co.,Ltd. products described or contained herein. SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require the export license from the authorities concerned in accordance with the above law. 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SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of June, 2007. Specifications and information herein are subject to change without notice. PS No.A0470-9/9