Ordering number : ENA2038B LV8548MC Bi-CMOS integrated circuit 12V Low Saturation Voltage Drive http://onsemi.com Forward/Reverse Motor Driver Overview The LV8548MC is a 2-channel low saturation voltage forward/reverse motor driver IC. It is optimal for motor drive in 12V system products and can drive either two DC motors, one DC motor using parallel connection, or it can drive a stepping motor in Full-step and Half-step. Functions • DMOS output transistor adoption (Upper and lower total RON=1Ω typ) • For one power supply (The control system power supply is unnecessary.) • Our motor driver IC, LB1948MC, and compatible pin • It is possible to connect it in parallel (parallel, connected operation of drive ch). • The compact package (SOIC10) is adopted. • VCC max=20V, IO max=1A • Current consumption 0 when standing by • Built-in brake function Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings Unit Maximum power supply voltage VCC max -0.3 to +20 Output impression voltage VOUT -0.3 to +20 V V Input impression voltage VIN -0.3 to +6 V GND pin outflow current IGND For ch 1.0 A Allowable Power dissipation Pd max * 1.0 W Operating temperature Topr -30 to +85 °C Storage temperature Tstg -40 to +150 °C *: When mounted on the specified printed circuit board (57.0mm ×57.0mm × 1.6mm), glass epoxy, both sides Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time. Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current, high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details. Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. Semiconductor Components Industries, LLC, 2013 June, 2013 41812 SY/32812 SY 20120323-S00007/31512 SY No.A2038-1/6 LV8548MC Recommendation Operating Conditions at Ta = 25°C Parameter Symbol Conditions Ratings Unit Power supply voltage VCC 4.0 to 16 V Input “H” level voltage VINH +1.8 to +5.5 V Input “L” level voltage VINL -0.3 to +0.7 V Electrical Characteristics at Ta = 25°C, VCC = 12V Parameter Symbol Power supply voltage ICC0 Ratings Conditions min typ Unit max Standby mode 1 μA 2.3 mA IN1=IN2=IN3=IN4=”LOW” ICC1 It is "High" from IN1 as for either of IN4. Load opening Input current IIN VIN=5V Thermal shutdown operating Ttsd Design certification Width of temperature hysteria ΔTtsd Design certification Low voltage protection function VthVCC 1.7 35 50 65 μA 150 180 210 °C temperature °C 40 3.3 3.5 3.65 V 3.55 3.8 3.95 V 0.7 1 1.25 Ω 10 μA 1.2 V operation voltage Release voltage Vthret Output ON resistance RON IOUT=1.0A Output leak current IOleak VO=16V Diode forward voltage VD ID=1.0A (Upper and lower total) 1.0 Package Dimensions unit : mm (typ) 3426A 4.9 6 Allowable power dissipation, Pd max -- W 6.0 5 0.41 0.835 0.37 1.0 0.21 0.175 1.5 1.75 MAX 1 Pd max - Ta 1.5 3.9 10 Specified circuit board: 57.0 × 57.0 × 1.6mm3 glass epoxy board, Both sides 1.0 0.52 0.5 0 -30 -10 0 10 30 50 70 90 Ambient temperature, Ta -- C SANYO : SOIC10 Pin Assignment 10 OUT1 IN1 2 9 OUT2 IN2 3 IN3 4 IN4 5 LV8548MC VCC 1 8 OUT3 7 OUT4 6 GND No.A2038-2/6 LV8548MC Block Diagram 1. At two DC motor drive VCC H-side PRE LVS OUT1 IN1 M OUT2 IN2 L-side PRE INPUT LOGIC IN3 VCC H-side PRE IN4 OUT3 OUT4 M L-side PRE VREF TSD GND 2. At one stepping motor drive VCC H-side PRE LVS OUT1 IN1 OUT2 IN2 L-side PRE INPUT LOGIC IN3 VCC H-side PRE IN4 OUT3 OUT4 M L-side PRE TSD VREF GND No.A2038-3/6 LV8548MC Pin function Pin No. 1 Pin name VCC 2 IN1 3 IN2 4 IN3 5 IN4 6 7 GND OUT4 Pin function Power-supply voltage pin. VCC voltage is impressed. The permissible operation voltage is from 4.0 to 16.0(V). The capacitor is connected for stabilization for GND pin (6pin). Motor drive control input pin. Driving control input pin of OUT1 (10pin) and OUT2 (9pin). It combines with IN2 pin (3pin) and it fights desperately. The digital input it, range of the "L" level input is 0 to 0.7(V), range of the "H" level input is from 1.8 to 5.5(V). PWM can be input. Pull-down resistance 100(kΩ) is built into in the pin. It becomes a standby mode because all IN1, IN2, IN3, and IN4 pins are made "L", and the circuit current can be adjusted to 0. Motor drive control input pin. Driving control input pin of OUT1 (10pin) and OUT2 (9pin). It combines with IN1 pin (2pin) and it uses it. PWM can be input. With built-in pull-down resistance. Motor drive control input pin. Driving control input pin of OUT3 (8pin) and OUT4 (7pin). It combines with IN4 pin (5pin) and it uses it. PWM can be input. With built-in pull-down resistance. Motor drive control input pin. Driving control input pin of OUT3 (8pin) and OUT4 (7pin). It combines with IN3 pin (4pin) and it uses it. PWM can be input. With built-in pull-down resistance. Ground pin. Driving output pin. The motor coil is connected between terminal OUT3 (8pin). 8 OUT3 Driving output pin. The motor coil is connected between terminal OUT4 (7pin). 9 OUT2 Driving output pin. The motor coil is connected between terminal OUT1 (10pin). 10 OUT1 Driving output pin. The motor coil is connected between terminal OUT2 (9pin). Equivalent Circuit VCC OUT1 (OUT3) OUT2 (OUT4) Operation explanation 1. DCM output control logic Input IN1 L L H L H IN2 L L L H H IN3 L L H L H IN4 L L L H H OUT1 OFF OFF H L L Output OUT2 OUT3 OFF OFF OFF L H L OFF H L L Remarks OUT4 OFF 1CH OFF L H L 2CH Stand-by Stand-by Forward Reverse Brake Stand-by Forward Reverse Brake No.A2038-4/6 LV8548MC 2. About the switch time from the stand-by state to the state of operation When IN1, IN2, IN3, IN4 are "L", this IC has completely stopped operating. After the time of reset of about 7μs of an internal setting, it shifts to a prescribed output status corresponding to the state of the input when the signal enters the input terminal. Reset of about 7μs doesn't hang even if the motor is driven from the stand-by state when either CH drives and the output becomes an output status corresponding to the state of the input. As for full power TR between the reset time, turning off is maintained. 1ch input ON 2ch input ON Input OFF 2ch input ON IN1 OUT1 1ch side forward (Reset time) IN3 OUT3 2ch side forward Stand-by state Stand-by state (Reset time) There is no reset time when another CH drives. 3. Example of current wave type in each excitation mode when stepping motor parallel input is controlled. • Full-step mode • Half-step mode IN1 IN1 IN2 IN2 IN3 IN3 IN4 IN4 (%) 100 I1 (%) 100 I1 0 -100 100 I2 0 -100 100 I2 0 0 -100 -100 Application Circuit Example 1. Example of applied circuit when two DC motor driving C1 6 GND OUT4 8 OUT3 6 GND IN2 IN3 IN4 3 4 5 IN1 IN4 5 2 IN3 4 VCC IN2 3 1 IN1 2 C1 Logic input 9 7 OUT4 VCC LV8548MC 1 + OUT2 8 OUT3 OUT1 10 9 LV8548MC 7 M M OUT2 OUT1 10 M 2. Example of applied circuit when one stepping motor driving + Logic input No.A2038-5/6 LV8548MC 3. Example of applied circuit when connecting it in parallel The use likened to H bridge 1ch is shown possible in the figure below by connecting IN1 with IN3, IN2 with IN4, OUT1 with OUT3, OUT2, and OUT4. (IO max=2.0A, Upper and lower total RON=0.5Ω) 6 GND 7 OUT4 8 OUT3 9 OUT2 OUT1 10 M C1 IN1 IN2 IN3 IN4 2 3 4 5 1 VCC LV8548MC + Logic input * Bypass capacitor (C1) connected between VCC-GND of all examples of applied circuit recommends the electric field capacitor of 0.1μA to 10μA. Confirm there is no problem in operation in the state of the motor load including the temperature property about the value of the capacitor. Mount the position where the capacitor is mounted on nearest IC. ON Semiconductor and the ON logo are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. 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