Ordering number : ENA2039B LV8549MC Bi-CMOS integrated circuit 12V Low Saturation Voltage Drive http://onsemi.com Stepping Motor Driver Overview The LV8549MC is a 2-channel low saturation voltage forward/reverse motor driver IC. It is optimal for Full step motor drive in 12V system products. Functions • DMOS output transistor adoption (Upper and lower total RON=1Ω typ) • The compact package (SOIC10) is adopted. • VCC max=20V, IO max=1A • For one power supply (The control system power supply is unnecessary.) • Current consumption 0 when standing by 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. 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 Semiconductor Components Industries, LLC, 2013 June, 2013 41812 SY/32812 SY 20120323-S00008/31512 SY No.A2039-1/5 LV8549MC Electrical Characteristics at Ta = 25°C, VCC = 12V Parameter Symbol Ratings Conditions min Power supply voltage ICC0 Standby mode ENA=L ICC1 ENA=H Unit typ max 1.7 Input current IIN VIN=5V Thermal shutdown operating Ttsd Design certification Width of temperature hysteria ΔTtsd Design certification Low voltage protection function VthVCC 1 μA 2.3 mA 30 50 65 μA 150 180 210 °C 3.3 3.5 3.65 3.55 3.8 3.95 V 0.7 1 1.25 Ω 10 μA 1.0 1.2 V temperature °C 40 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) Package Dimensions unit : mm (typ) 3426A 4.9 10 6 Pd max - Ta Allowable power dissipation, Pd max -- W 1.0 5 0.41 0.21 0.175 1.5 1.75 MAX 1 0.835 0.37 6.0 3.9 1.5 Specified circuit board: 57.0 × 57.0 × 1.6mm3 glass epoxy board, Both sides 1.0 0.52 0.5 0 -30 SANYO : SOIC10 -10 0 10 30 50 70 90 Ambient temperature, Ta -- C Pin Assignment 10 OUT1 ENA 2 9 OUT2 IN1 3 IN2 4 NC 5 LV8549MC VCC 1 8 OUT3 7 OUT4 6 GND No.A2039-2/5 LV8549MC Block Diagram VCC H-side PRE LVS OUT1 OUT2 ENA L-side PRE IN1 INPUT LOGIC VCC IN2 H-side PRE OUT3 M OUT4 L-side PRE TSD VREF GND Pin function Pin No. 1 Pin name VCC 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. It shifts from the stand-by state to a prescribed output operation corresponding to the state of the input when the ENA pin becomes a standby mode by L, the circuit current can be adjusted to 0, and it makes it to H. It is a digital input, and the range of L level input is 0 to 0.7(V) and the range of H level input are 1.8 to 5.5(V). PWM can be input. Pull-down resistance 100(kΩ) is built into in the terminal. Motor drive control input pin. Driving control input pin of OUT1 (10pin) and OUT2 (9pin). 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). PWM can be input. With built-in pull-down resistance. 2 ENA 3 IN1 4 IN2 5 6 7 NC GND OUT4 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 5VREG Ground pin. Driving output pin. The motor coil is connected between terminal OUT3 (8pin). VCC OUT1 (OUT3) OUT2 (OUT4) No.A2039-3/5 LV8549MC Operation explanation 1. STM output control logic ENA L H Input IN1 IN2 OUT1 L H H L L L H H OFF H L L H Output OUT2 OUT3 OFF L H H L State OUT4 OFF H H L L OFF L L H H Stand-by Step 1 Step2 Step3 Step4 2. About the switch time from the stand-by state to the state of operation When ENA pin are "L", this IC has completely stopped operating. After the time of reset (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 ENA pin. ENA ON ENA IN1 (*IN1 and IN2 are Full-Step input) IN2 OUT1 (OUT2 is a reverse phase of OUT1) OUT3 (OUT4 is a reverse phase of OUT3) Stand-by state Excitation drive of two phase (RESET time) 3. Example of current waveform at full-step mode. IN1 IN2 (%) 100 I1 0 -100 100 I2 0 -100 Step1 Step2 Step3 Step4 No.A2039-4/5 LV8549MC Applied circuit example 6 GND 7 OUT4 8 OUT3 9 OUT2 OUT1 10 M C1 IN1 IN2 NC 4 5 ENA 2 3 VCC 1 LV8549MC + 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). 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