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| Ordering number: EN4996 Monolithic Digital IC LB1840M Low-voltage/Low-saturation Bidirectional Variable Constant-voltage Motor Driver Overview The LB1840M is a low-voltage, low-saturation, three-input type two-channel bidirectional motor driver that permits switching between constant-voltage regulated output and saturated output. The design is ideal for a two-phase bipolar driver for stepping motors. Package Dimensions unit: mm 3111-MFP14S [LB1840M] Features . Wide operating voltage range (3.0 to 9.0 V). . Low saturation voltage I = 200 . V = 0.40 V atno current mA. mode Consumes almost in standby (0.1 A or less). . Permits setting of bidirectional constant-voltage regulated . value. type that is ideal for a two-phase bipolar driver. . Three-input between constant-voltage regulated output Permits switching . and saturated output. coupled to input. . Built in reference voltage Compact MFP-14S package. O(sat) O SANYO : MFP14S Specifications Absolute Maximum Ratings at Ta = 25 C Parameter Maximum supply voltage Output current Applied input voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max Im max VIN Pd max Topr Tstg With board ( 30 x 30 x 1.5 mm3 ) Conditions Ratings 10.5 250 -0.3 to +10 800 -20 to +80 -40 to +150 Unit V mA V mW C C Allowable Operating Ranges at Ta = 25 C Parameter Supply voltage IN pin high level voltage IN pin low level voltage Control voltage VM pin high level voltage VM pin low level voltage Symbol VCC VINH VINL VC VMH VML Conditions Ratings 3.0 to 9.0 3.0 to 9.0 -0.3 to +0.7 0.2 to 6.0 VCC - 0.3 to VCC -0.3 to VCC-2.5 Unit V V V V V V SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN O1596HA(II) No.4996-1/5 LB1840M Electrical Characteristics at Ta = 25 C, VCC = 6 V Parameter Supply current Symbol ICC0 ICC1 ICC2 Output saturation voltage Vsat1 Vsat2 VOsat3 Reference voltage Output voltage voltage characteristics Output voltage current characteristics Input current Output voltage Vref VO VCC VO IO IIN IVM VO During standby During bidirectional operation (for two channels): during control, load open during saturation, load open IO = 100 mA (upper side + lower side) IO = 200 mA (upper side + lower side) IO = 200 mA (lower side) IVref = 1 mA VO = 5 V, VCC = 5.5 to 9 V, IO = 100 mA VO = 5 V, VCC = 6 V, IO = 10 to 100 mA VIN = 5 V VM = GND Between OUT and GND 2.45 x VC 90 210 0.07 1.85 Conditions min typ 0.1 3.5 4.5 0.30 0.40 0.10 2.0 max 10 5.0 6.5 0.40 0.55 0.15 2.15 20 50 150 300 2.65 x VC Unit A mA mA V V V V mV mV A A V Equivalent Circuit Block Diagram (For one channel) Thermal Reference voltage Logic predriver Pin Assignment Note: Both GND pins must be grounded. Top view No.4996 -2/5 LB1840M Truth Table Input ENA L H H H H IN 1/2 -- L L H H VM -- H L H L Output OUT 1/3 OFF H H L L OUT 2/4 OFF L L H H Standby Constant-voltage regulated forward operation Saturated forward operation Constant-voltage regulated reverse operation Saturated reverse operation Mode The constant-voltage regulated output VO (= voltage between H side output and GND) is controlled by VO = 2.5 x VC. The output is in the saturated state when the VC input range is 0.2 to 6 V and VO ^ VCC. Pin Functions Pin No. 14 9 12 3 6 Symbol VCC GND IN2 IN1 Equivalent Circuit Diagram Pin Function Power supply pin for output and controller. GND pins for output and controller. Both must be grounded. Input pins that determine the excitation of the outputs. IN1 control outputs OUT1 and OUT2; IN2 control outputs OUT3 and OUT4. L: -0.3 to +0.7 V or open H: 3.0 to 9.0 V There are no limitations on the magnitude relationships between the VCC and VIN supply voltages. 8 10 11 13 OUT4 OUT3 OUT1 OUT2 Output pins. Have built-in spark killer diodes. 4 Vref Reference voltage (= 2.0 V). Continued on next page. No.4996 -3/5 LB1840M Continued from preceding page. Pin No. 5 Symbol VC Equivalent Circuit Diagram Pin Function Input pins that determine the constantvoltage regulated output level. The constant-voltage regulated output VO (= voltage between H side output and GND) is controlled by VO = 2.5 x VC. There are no limitations on the magnitude relationships between the VCC and VC supply voltages. Output 2 ENA Standby/drive control input pin. Current drain in standby mode is 10 A or less. L: -0.3 to + 0.7 V or open H: 3.0 to 9.0 V There are no limitation on the magnitude relationships between VCC and VENA supply voltage. 7 VM Control input pin for switching between constant voltage output and saturated output. L: -0.3 to VCC - 2.5 V (saturated output) H: VCC - 0.3 to VCC or open (constant-voltage regulated output) Sample Application Circuit Stepping motor If the outputs oscillate, insert capacitors of 0.001 to 0.1 F between the outputs. No.4996 -4/5 LB1840M Allowable power dissipation, Pd max -- mW Specified board (30 x 30 x 1.5 mm3 glass epoxy) Output saturation voltage, VO(sat) -- V Ambient temperature, Ta -- C Output current, IO -- mA No load Output voltage, VO -- V Input current, IIN -- A No load Input voltage, VIN -- V Supply voltage, VCC -- V 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 October, 1996. Specifications and information herein are subject to change without notice. No.4996 -5/5 |
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