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| Ordering number: EN3950C Monolithic Digital IC LB1839M Low-voltage/Low-saturation Bidirectional Constant-Voltage Regulated Motor Driver Overview The LB1839M 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 of the LB1839M is ideal for a two-phase bipolar driver for stepping motors. Package Dimensions unit: mm 3111-MFP14S [LB1839M] Features . Wide operating voltage range (3.0 to 9.0 V). . Low saturation voltage 0.40 V at = 200 . V (sat) = almost no Icurrent inmA. mode Consumes 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 MFP14S package. O 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 mm ) 3 Conditions Ratings 10.5 250 -0.3 to +10 800 -20 to +80 -40 to +125 Unit V mA V mW C C Allowable Operating Ranges at Ta = 25 C Parameter Supply voltage Input [H] voltage Input [L] voltage Control voltage Symbol VCC VIH VIL VC Conditions Ratings 3.0 to 9.0 3.0 to 9.0 -0.3 to +0.7 0.2 to 6.0 Unit 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 81095HA(II)/61295HA(II)/5072TS No.3950-1/5 LB1839M Electrical Characteristics at Ta = 25 C, VCC = 6 V Parameter Supply current Symbol ICC0 ICC1 ICC2 Output saturation voltage Vsat1 Vsat2 Vsat3 Vref VO VCC VO ICC IIN VO Conditions During standby (For two channel) During bidirectional operation, during control, load open (For two channel) During bidirectional operation, 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 Between OUT and GND 90 2.5 x VC min typ 0.1 3.5 4.0 0.30 0.40 0.10 2.0 max 10 5.0 6.0 0.40 0.55 0.15 2.15 20 50 150 2.7 x VC Unit A mA mA V V V V mV mV A V Reference voltage Output voltage voltage characteristics Output voltage current characteristics Input current Output voltage 0.07 1.85 Equivalent Circuit Block Diagram (For one channel) Thermal Reference voltage Logic predriver Truth Table Input ENA L H IN 1/2 -- L VM 1/2 -- L OUT 1/3 OFF H Output OUT 2/4 OFF L Mode Standby Constant-voltage regulated forward operation Saturated forward operation Constant-voltage regulated reverse operation Saturated reverse operation Pin Assignment H L H H L H H L L H H H H L H The constant-voltage regulated output VO (= voltage between H side output and GND) is controlled by 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. Note: Both GND pins must be grounded. No.3950 -2/5 LB1839M 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 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). 5 VC Output 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. 2 ENA Standby/drive control input pin Current consumption in standby mode is 10 A or less. L: -0.3 to + 0.7 V H: 3.0 to 9.0 V 1 7 VM1 VM2 Output Output voltage setting Control input pin for switching between constant voltage output and saturated output. There are no limitations on the magnitude relationships between the VCC, VM1 and VM2 supply voltages. L: -0.3 to + 0.7 V (constant-voltage regulated output) H: 3.0 to 9.0 V (saturated output) No.3950 -3/5 LB1839M Sample Application Circuit Stepping motor If the outputs oscillate, insert capacitors of 0.001 to 0.1 F between the outputs. Pd max -- Ta Allowable power dissipation, Pd max -- mW Output saturation voltage, VO(sat) -- V VO(sat) -- IO Specified board (30 x 30 x 1.5 mm3 glass epoxy) Ambient temperature, Ta -- C Output current, IO -- mA IIN -- VIN VO -- VCC No load Output voltage, VO -- V Input current, IIN -- A No load Input voltage, VIN -- V Supply voltage, VCC -- V No.3950 -4/5 LB1839M 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 June, 1995. Specifications and information herein are subject to change without notice. No.3950 -5/5 |
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