LB1836M_10

Ordering number : EN3947F Monolithic Digital IC LB1836M Overview Low-Saturation Bidirectional Motor Driver for Low-Voltage Drive The LB1836M is a low-saturation two-channel bidirectional motor driver IC for use in low-voltage applications. The LB1836M is a bipolar stepper-motor driver IC that is ideal for use in printers, FDDs, cameras and other portable devices. Features • Low voltage operation (2.5V min) • Low saturation voltage (upper transistor + lower transistor residual voltage ; 0.40V typ at 400mA). • Parallel connection (Upper transistor + lower transistor residual voltage ; 0.5V typ at 800mA). • Separate logic power supply and motor power supply • Brake function • Spark killer diodes built in • Thermal shutdown circuit built in • Compact package (14-pin MFP) Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Symbol VCC max VS max Output supply voltage Input supply voltage GND pin flow-out current Allowable power dissipation Operating temperature Storage temperature 3 Conditions Ratings -0.3 to +10.5 -0.3 to +10.5 VS + VSF -0.3 to +10 Unit V V V V A mW °C °C VOUT VIN IGND Pd max Topr Tstg Per channel * Mounted on a board. 1.0 800 -40 to +85 -55 to +150 * Mounted on a substrate: 30×30×1.5mm , glass epoxy board. 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. 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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. 31110 SY / 82207 MS / 71807 MS 20070709-S00001 / 70407 MS PC 20070611-S00003 / 21097HA(II) / D2293 / O0693(US) No.3947-1/6 LB1836M Allowable Operating Ranges at Ta = 25°C Parameter Supply voltage Symbol VCC VS Input “H”-level voltage Input “L”-level voltage VIH VIL Conditions Ratings 2.5 to 9.0 1.8 to 9.0 1.8 to 9.0 -0.3 to +0.7 Unit V V V V Electrical Characteristics at Ta = 25°C, VCC = VS = 3V Parameter Supply current Symbol ICC0 ICC1 ICC2 Output saturation voltage (upper + lower) VOUT1 VOUT2 VOUT3 VOUT4 Output sustain voltage Input current Spark killer diode Reverse current Forward voltage IS (leak) VSF VCC1, 2 = 9V IOUT = 400mA 30 1.7 μA V VO (SUS) IIN Conditions min VIN1, 2, 3, 4 = 0V, ICC + IS VIN1 = 3V, VIN2, 3, 4 = 0V, ICC + IS VIN1, 2 = 3V, VIN3, 4 = 0V, ICC + IS IOUT = 200mA IOUT = 400mA IOUT = 400mA, Parallel connection IOUT = 800mA, Parallel connection IOUT = 400mA VIN = 2V, VCC = 6V 9 80 Ratings typ 0.1 14 22 0.20 0.40 0.25 0.50 max 10 20 35 0.28 0.60 0.35 0.70 μA mA mA V V V V V μA Unit Package Dimensions unit : mm (typ) 3111A 1000 Pd max -- Ta Specified board : 30×30×1.5mm3 glass epoxy 8.0 14 8 Allowable power dissipation, Pd max -- mW 800 4.4 6.4 600 1.7MAX 1 (1.0) 1.0 0.35 0.63 7 0.15 400 420 0.1 (1.5) 200 SANYO : MFP14S(225mil) 0 ñ 40 ñ 20 0 20 40 60 8085 100 Ambient temperature, Ta -- °C Pin Assignment GND 14 IN3 13 OUT3 12 VS2 11 OUT4 10 IN4 9 Vcont 8 LB1836M 1 VCC 2 IN1 3 OUT1 4 VS1 5 OUT2 6 IN2 7 GND Top view Note) Ground both GND pins. No.3947-2/6 LB1836M Block Diagram VCC VS2 VS1 10μF IN1 Controller M OUT1 OUT2 IN2 Thermal shutdown Controller IN3 OUT3 M OUT4 IN4 GND GND Truth Table IN1/3 H L H L IN2/4 L H H L OUT1/3 H L L OFF OUT2/4 L H L OFF Mode Forward Reverse Brake Standby No.3947-3/6 LB1836M Design Notes If large current flows on the power supply (VS) line and the GND line, then in some applications and layouts, misoperation due to line oscillation may result. The modes during which large current flows are as follows : • Motor surge current when the DC motor starts up or when it shifts rotation directions (forward ↔ reverse). • Passthrough current generated within the IC when shifting rotation directions (forward ↔ reverse) or when shifting from forward/reverse rotation to braking, or vice versa. The following points should be kept in mind regarding the pattern layout : • Keep the wiring lines thick and short in order to reduce wiring inductance between the power supply (VS) and GND. • Insert a passthrough capacitor near the IC. (Maximum effect is obtained by inserting the passthrough capacitor between VS and the pin 7 GND at the closest distance possible. • If the CPU and the LB1836M are mounted on separate boards and the difference between the ground potential of each board is large, install resistors of about 10kΩ in series between the CPU and the LB1836M inputs. Vcont pin VCC VS OUT M 300Ω ID VZ OUT ID = VZ r (= constant) IN Vcont As shown in the above diagram, the Vcont pin outputs the voltage of the band gap Zener VZ + VF (=1.93V). In normal use, this pin is left open. The drive current ID is varied by the Vcont voltage. However, because the band gap Zener is shared, it functions as a bridge. No.3947-4/6 LB1836M 1.0 VO (sat) – IO 110 IIN – Ta VCC = VS = IN = 3V Output saturation voltage, VO (sat) – V 0.8 100 Input current, IIN – μA 0.6 90 IN 1 IN 2 0.4 80 0.2 70 0 0 100 200 300 400 500 600 0 – 40 – 20 0 20 40 60 80 100 120 140 160 Output current, IO – mA 0.6 Ambient temperature, Ta – °C 1.0 VO (sat) – Ta VO (sat) – IO Output saturation voltage, VO (sat) – V 0.5 Output saturation voltage, VO (sat) – V VCC = VS = IN = 3V VO(sat) = total value 0.8 0.4 IO A = 400m 0.6 to 0.2 ta l 0.3 IO = 200mA 0.4 Par 0.2 alle l co cti nne on 0.1 0 – 40 – 20 0 20 40 60 80 100 120 140 0 0 100 200 300 1c tota 400 h l 500 600 700 800 900 Ambient temperature, Ta – °C 24 IS – Ta VCC = VS = IN = 3V Output current, IO – mA 6 ICC – Ta VCC = VS = IN = 3V 20 5 16 Bre Current drain, ICC – mA Current drain, IS – mA ak 4 Brea 3 k 12 8 Forwar d Revers e 2 Forward Reverse 4 1 0 – 40 – 20 0 20 40 60 80 100 120 140 160 0 – 40 – 20 0 20 40 60 80 100 120 140 160 Ambient temperature, Ta – °C 400 Ambient temperature, Ta – °C 28 IIN – VIN VCC = VS = 3V IN1 IN2 IN3 IN4 ICC – VCC VS = IN = 3V Br ea k 24 Input current, IIN – μA 300 Current drain, ICC – mA 20 16 200 12 a Forw 8 rd/R ever se 100 4 0 0 1 2 3 4 5 6 7 8 9 10 0 0 1 2 3 4 5 6 7 8 Standby 9 10 11 Input voltage, VIN – V Supply voltage, VCC – V No.3947-5/6 LB1836M 24 IS – VS VCC = IN = 3V Break 20 Current drain, IS – mA 16 12 Forward/Reverse 8 4 0 0 1 2 3 4 5 6 7 8 Standby 9 10 11 Supply voltage, VS – V SANYO 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 January,2010. Specifications and information herein are subject provides information as of March, 2007. Specifications and information herein to change without notice. PS No.3947-6/6