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BA6247

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BA6247

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Part Number BA6247
Manufacturer Rohm Semiconductor
Description IC MOTOR DRIVER PAR 10HSIP
Datasheet BA6247 Datasheet
Package 10-SIP, Exposed Tab
In Stock 4,032 piece(s)
Unit Price $ 4.9300 *
Lead Time Can Ship Immediately
Estimated Delivery Time Dec 2 - Dec 7 (Choose Expedited Shipping)
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Part Number # BA6247 (PMIC - Motor Drivers, Controllers) is manufactured by Rohm Semiconductor and distributed by Heisener. Being one of the leading electronics distributors, we carry many kinds of electronic components from some of the world’s top class manufacturers. Their quality is guaranteed by its stringent quality control to meet all required standards.

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BA6247 Specifications

ManufacturerRohm Semiconductor
CategoryIntegrated Circuits (ICs) - PMIC - Motor Drivers, Controllers
Datasheet BA6247Datasheet
Package10-SIP, Exposed Tab
Series-
Motor Type - Stepper-
Motor Type - AC, DCBrushed DC
FunctionDriver - Fully Integrated, Control and Power Stage
Output ConfigurationHalf Bridge (3)
InterfaceParallel
TechnologyBipolar
Step Resolution-
ApplicationsGeneral Purpose
Current - Output1A
Voltage - Supply8 V ~ 18 V
Voltage - Load8 V ~ 18 V
Operating Temperature-25°C ~ 150°C (TJ)
Mounting TypeThrough Hole
Package / Case10-SIP, Exposed Tab
Supplier Device Package10-HSIP

BA6247 Datasheet

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1/11 www.rohm.com 2011.05 - Rev.B © 2011 ROHM Co., Ltd. All rights reserved. Reversible Motor Drivers for Brush Motors 1.0A or More Reversible Motor Drivers (2 Motors) BA6247FP-Y, BA6238A ●Description The reversible motor driver for output 1.0A or more for two motors drives a brush motor and incorporates one and a half circuits of reversible motor driver. In addition, since the output section can control voltage applied to motors by output high voltage setting pin, the torque at the time of driving motors can be varied. ●Features 1) Built-in one and a half circuits of a reversible motor driver 2) Minimal external components 3) Output voltage can be optionally set by reference voltage setting pin 4) Built-in thermal shutdown circuit ●Applications Audio-visual equipment; PC peripherals; Car audios; Car navigation systems; OA equipments ●Absolute maximum ratings (Ta=25℃, All voltages are with respect to ground) Parameter Symbol Ratings Unit BA6247FP-Y BA6238A Supply voltage VCC1, VCC2 20 20 V Output current IOMAX 1* 1 1.6*1 A Control input pins VIN -0.2 ~ 6.0 -0.3 ~ 5.0 V Operating temperature TOPR -25 ~ 75 -25 ~ 75 ℃ Storage temperature TSTG -55 ~ 150 -55 ~ 125 ℃ Power dissipation Pd 1.45*4 2.0*2 / 0.95*3 W Junction temperature Tjmax 150 125 ℃ *1 Do not, exceed Pd or ASO (Pulse at 1/50 duty: 50ms). *2 HSIP10 package. Derated at 20mW/℃ above 25℃. *3 SIP10 package. Derated at 9.5mW/℃ above 25℃. *4 HSOP25 package. Mounted on a 70mm x 70mm x 1.6mm FR4 glass-epoxy board with less than 3% copper foil. Derated at 11.6mW/℃ above 25℃. ●Operating conditions (Ta=25℃) Parameter Symbol Ratings Unit BA6247FP-Y BA6238A Supply voltage VCC1, 8 ~ 18 8 ~ 18 V Supply voltage VCC2 8 ~ 18 8 ~ 18 V VREF voltage VR 0 ~ 18 0 ~ 18 V No.11008EBT04

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Technical Note 2/11 BA6247FP-Y,BA6238A www.rohm.com 2011.05 - Rev.B © 2011 ROHM Co., Ltd. All rights reserved. ●Electrical characteristics (BA6247FP-Y, unless otherwise specified, Ta=25℃ and VCC1=VCC2=12V) Parameter Symbol Limits Unit Conditions Min. Typ. Max. Supply current ICC - 10 20 mA IN1, IN2, IN3=L Input threshold voltage H VIH 3.5 - - V Input threshold voltage L VIL - - 1.0 V Output voltage H VOH 10 10.5 - V IO=0.5A, VR=OPEN Output voltage L VOL - 0.9 1.5 V IO=0.5A Output leak current IOL - - 1 mA IN1, IN2, IN3=L, VCC2 current Output offset voltage VOFS -0.5 0 0.5 V VR=6V, IO=0.5A, VOH-VR VR bias current I8 0.5 0.8 1.6 mA VR=6V, IO=0.5A ●Electrical characteristics (BA6238A, unless otherwise specified, Ta=25℃ and VCC1=VCC2=12V) Parameter Symbol Limits Unit Conditions Min. Typ. Max. Supply current ICC - 12 24 mA IN1, IN2, IN3=L, RL=∞ Input threshold voltage H VIH 4.0 - - V Input threshold voltage L VIL - - 1.0 V Output voltage H VOH 10.0 10.5 - V IO=0.5A, VR=OPEN Output voltage L VOL - 0.8 1.5 V IO=0.5A, VR=OPEN Output leak current IOL - - 1 mA IN1, IN2, IN3=L, RL=∞, VCC2 current Output offset voltage VOFS -0.5 0 0.5 V VR=6V, IO=0.5A, VOH-VR VR bias current I8 0.2 0.6 1.5 mA VR=6V, IO=0.5A

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Technical Note 3/11 BA6247FP-Y,BA6238A www.rohm.com 2011.05 - Rev.B © 2011 ROHM Co., Ltd. All rights reserved. ●Electrical characteristic curves (Reference data) Fig.1 Supply current Fig.2 Supply current (BA6247FP-Y) (BA6238A) Fig.3 Output high voltage Fig.4 Output high voltage (BA6247FP-Y) (BA6238A) Fig.5 Output low voltage Fig.6 Output low voltage (BA6247FP-Y) (BA6238A) Fig.7 Thermal derating curve Fig.8 Thermal derating curve (BA6247FP-Y, HSOP25) (BA6238A, HSIP10) 4 6 8 10 12 14 16 8 10 12 14 16 18 Supply Voltage: Vcc [V] S up pl y C ur re nt : I cc [m A ] -25℃ 25℃ 75℃ 6 8 10 12 14 16 18 8 10 12 14 16 18 Supply Voltage: Vcc [V] S up pl y C ur re nt : I cc [m A ] 75℃ 25℃ -25℃ 7.0 7.5 8.0 8.5 0 0.2 0.4 0.6 0.8 1 Output Current: Iout [A] O ut pu t H ig h V ol ta ge : V O H [V ] 75℃ 25℃ -20℃ 8 9 10 11 12 0 0.4 0.8 1.2 1.6 Output Current: Iout [A] O ut pu t H ig h V ol ta ge : V O H [V ] 75℃ 25℃ -25℃ 0.0 0.3 0.6 0.9 1.2 1.5 0 0.2 0.4 0.6 0.8 1 Output Current: Iout [A] O ut pu t L ow V ol ta ge : V O L [V ] -25℃ 25℃ 75℃ 0.0 0.4 0.8 1.2 1.6 0 0.4 0.8 1.2 1.6 Output Current: Iout [A] O ut pu t L ow V ol ta ge : V O L [V ] -25℃ 25℃ 75℃ 0 1 2 3 0 25 50 75 100 125 150 AMBIENT TEMPERATURE [°C] P d [W ] i) 2.0W i) Without heat sink 0 1 2 3 0 25 50 75 100 125 150 AMBIENT TEMPERATURE [°C] P d [W ] i)0.85W ii)1.45W ii) Mounted on ROHM standard PCB (70mm x 70mm x 1.6mm FR4 glass-epoxy board) i) Package only

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Technical Note 4/11 BA6247FP-Y,BA6238A www.rohm.com 2011.05 - Rev.B © 2011 ROHM Co., Ltd. All rights reserved. ●Block diagram and pin configuration BA6247FP-Y Fig.9 BA6247FP-Y Table 1 BA6247FP-Y Pin Name Function 1 OUT3 Driver output 2 NC NC 3 NC NC 4 NC NC 5 IN1 Control input 6 IN2 Control input 7 GND GND 8 IN3 Control input 9 VCC1 Power supply (small signal) 10 NC NC 11 NC NC 12 NC NC 13 NC NC 14 VR Reference voltage setting pin 15 NC NC 16 VCC2 Power supply (driver stage) 17 NC NC 18 OUT1 Driver output 19 GND GND 20 GND GND 21 NC NC 22 OUT2 Driver output 23 NC NC 24 NC NC 25 NC NC FIN GND GND R3 C4 C1 R2 R1 C5 M M C2 C3 14 9 16 1 18 22 5 6 8 CTRL TSD IN1 IN2 IN3 VCC2 VCC1 VR OUT2 OUT1 OUT3 7 19 GND 20 FIN GND Fig.10 BA6247FP-Y (HSOP25) OUT3 NC GND NC NC IN1 IN2 GND IN3 VCC1 NC NC NC NC NC NC GND NC OUT2 NC GND GND OUT1 NC VCC2 NC VR

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Technical Note 5/11 BA6247FP-Y,BA6238A www.rohm.com 2011.05 - Rev.B © 2011 ROHM Co., Ltd. All rights reserved. ●Block diagram and pin configuration BA6238A Fig.11 BA6238A Table 2 BA6238A Pin Name Function 1 GND GND 2 OUT2 Driver output 3 OUT3 Driver output 4 IN1 Control input 5 IN2 Control input 6 IN3 Control input 7 VCC1 Power supply (small signal) 8 VR Reference voltage setting pin 9 VCC2 Power supply (driver stage) 10 OUT1 Driver output R3 C4 C1 R2 R1 C5 M M C2 C3 1 8 7 9 3 10 2 4 5 6 CTRL TSD IN1 IN2 IN3 VCC2 VCC1 VR GND OUT2 OUT1 OUT3 Fig.12 BA6238A (HSIP10) G N D O U T 2 O U T 3 IN 1 IN 2 IN 3 V C C 1 V R V C C 2 O U T 1

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Technical Note 6/11 BA6247FP-Y,BA6238A www.rohm.com 2011.05 - Rev.B © 2011 ROHM Co., Ltd. All rights reserved. ●External application components 1) Resistor for the current limitation, R1 This is a current limiting resistor for collector loss reduction and at the time of short-circuited output. It depends on the power supply voltage used, etc., but choose resistance of about 5 to 10Ω. In addition, set resistance with utmost care to voltage drop caused by inrush current that flows when the motor is started. 2) Resistors and zener diode for the output high voltage setting, R2, R3 and ZD These are the resistors and zener diode used when output high voltage is set. Zener diode ZD is recommended to be used instead of resistor R3 when the power supply voltage is unstable. 3) Stabilization capacitor for the power supply line, C1 Please connect the capacitor of 1μF to 100μF for the stabilization of the power supply line, and confirm the motor operation. 4) Phase compensating capacitor, C2, C3, C4, C5 Noise is generated in output pins or oscillation results in accord with the set mounting state such as power supply circuit, motor characteristics, PCB pattern artwork, etc. As noise oscillation measures, connect 0.01μF to 0.1μF capacitors. ●Functional descriptions 1) Operation modes Table 3 Logic table, BA6247FP-Y / BA6238A IN1 IN2 IN3 OUT1 OUT2 OUT3 OPERATION L L L L L L Brake (stop) H H L L H L OPEN* Motor 1, forward (OUT1 > OUT2) H L H OPEN* Motor 1, reverse (OUT2 > OUT1) L H L H OPEN* L Motor 2, forward (OUT1 > OUT3) H L OPEN* H Motor 2, reverse (OUT3 > OUT1) H H L L L L Brake (stop) H * OPEN is the off state of all output transistors. Please note that this is the state of the connected diodes, which differs from that of the mechanical relay.

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Technical Note 7/11 BA6247FP-Y,BA6238A www.rohm.com 2011.05 - Rev.B © 2011 ROHM Co., Ltd. All rights reserved. 2) Output high voltage setting This function optionally sets output voltage by the VR pin and controls the motor rotating speed. However, when the output high voltage is set to a low level, consumption at IC increases. Carry out thermal design with sufficient margin incorporated with the power dissipation (Pd) under the actual application condition taken into account. Please do not to exceed the VCC1 and VCC2 voltage forced to the VR pin voltage. a) BA6247FP-Y The circuit diagram associated with the output high voltage setting VR pin is as per shown on the right. The output high and low voltages VOH and VOL are expressed by: VOH = VR + ( VF(Q5) + VF(Q4) ) - ( VF(Q2) + VF(Q3) ) VOH ≈ VR VOL = VSAT(Q7) + VF(Q6) (Reference values; VSAT ≈ 0.2V, VF ≈ 0.7V) In addition, the relation of VREF voltage to output voltage is expressed by: VR < VCC1 - VSAT(Q1) - VF(Q4) - VF(Q5) VR < VCC2 - VSAT(Q3) + (VF(Q2) +VF(Q3)) - ( VF(Q4) + VF(Q5) ) Therefore, when the VR voltage condition is as follows, the output high voltage is restricted. VR > VCC1 - VSAT(Q1) - VF(Q4) - VF(Q5) VR > VCC2 - VSAT(Q3) + (VF(Q2) +VF(Q3)) - ( VF(Q4) + VF(Q5) ) VOH = VCC1 - VSAT(Q1) - VF(Q2) - VF(Q3) VOH = VCC2 - VSAT(Q3) b) BA6238A The circuit diagram associated with the output high voltage setting VR pin is as per shown on the right. The output high and low voltages VOH and VOL are expressed by: VOH = VR + ( VF(Q5) + VF(Q4) ) - ( VF(Q2) + VF(Q3) ) VOH ≈ VR VOL = VSAT(Q7) + VF(Q6) (Reference values; VSAT ≈ 0.1V, VF ≈ 0.7V) In addition, the relation of VREF voltage to output voltage is expressed by: VR < VCC1 - VSAT(Q1) - VF(Q4) - VF(Q5) VR < VCC2 - ( VSAT(Q2) + VF(Q3) ) + (VF(Q2) + VF(Q3)) - ( VF(Q4) + VF(Q5) ) Therefore, when the VREF voltage condition is as follows, the output high voltage is restricted. VR > VCC1 - VSAT(Q1) - VF(Q4) - VF(Q5) VR > VCC2 - ( VSAT(Q2) + VF(Q3) ) + (VF(Q2) + VF(Q3)) - ( VF(Q4) + VF(Q5) ) VOH = VCC1 - VSAT(Q1) - VF(Q2) - VF(Q3) VOH = VCC2 - VSAT(Q2) - VF(Q3) VCC2 VCC1 VR Q1 Q2 Q3 Q4 Q5 OUT GND Q6 Q7 Fig.13 BA6247FP-Y VCC2 VCC1 VR Q1 Q2 Q3 Q4 Q5 OUT GND Q6 Q7 Fig.14 BA6238A

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Technical Note 8/11 BA6247FP-Y,BA6238A www.rohm.com 2011.05 - Rev.B © 2011 ROHM Co., Ltd. All rights reserved. 3) Control input conditions The input threshold voltage has a positive temperature coefficient and is expressed by: ΔVIH = +2.8mV / ℃ ΔVIL = +1.6mV / ℃ ΔT ΔT The input pin is pulled up at about 15kΩ. Set input voltage with care not to exceed the maximum input voltage (internal voltage regulator). BA6247FP-Y ··· 6V BA6238A ··· 5V 4) Switching of rotating direction (FWD/REV) When the rotating direction is changed over by the motor rotating condition, switch the direction after the motor is temporarily brought to the BRAKE condition or OPEN condition. It is recommended to keep the relevant conditions as follows: via BRAKE: Longer than braking time*. (* the time required for the output L terminal to achieve potential below GND when brake is activated.) The motor in no drive might be influenced momentarily because the all driver outputs low at the brake. ●Interfaces (BA6247FP-Y) (BA6238A) Fig. 15 IN1, IN2, IN3 Fig.16 VCC1, VCC2, OUT1, OUT2, OUT3, VR, GND VCC2 VCC1 OUT1 OUT2 OUT3 GND VR VCC2 VCC1 OUT1 OUT2 OUT3 VR GND IN1 IN2 IN3 5k 15k 7k VREG

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Technical Note 9/11 BA6247FP-Y,BA6238A www.rohm.com 2011.05 - Rev.B © 2011 ROHM Co., Ltd. All rights reserved. ●Notes for use 1) Absolute maximum ratings Devices may be destroyed when supply voltage or operating temperature exceeds the absolute maximum rating. Because the cause of this damage cannot be identified as, for example, a short circuit or an open circuit, it is important to consider circuit protection measures – such as adding fuses – if any value in excess of absolute maximum ratings is to be implemented. 2) Connecting the power supply connector backward Connecting the power supply in reverse polarity can damage the IC. Take precautions against reverse polarity when connecting the power supply lines, such as adding an external direction diode. 3) Power supply lines Return current generated by the motor’s Back-EMF requires countermeasures, such as providing a return current path by inserting capacitors across the power supply and GND (10µF, ceramic capacitor is recommended). In this case, it is important to conclusively confirm that none of the negative effects sometimes seen with electrolytic capacitors – including a capacitance drop at low temperatures - occurs. Also, the connected power supply must have sufficient current absorbing capability. Otherwise, the regenerated current will increase voltage on the power supply line, which may in turn cause problems with the product, including peripheral circuits exceeding the absolute maximum rating. To help protect against damage or degradation, physical safety measures should be taken, such as providing a voltage clamping diode across the power supply and GND. 4) Electrical potential at GND Keep the GND terminal potential to the minimum potential under any operating condition. In addition, check to determine whether there is any terminal that provides voltage below GND, including the voltage during transient phenomena. When both a small signal GND and high current GND are present, single-point grounding (at the set’s reference point) is recommended, in order to separate the small signal and high current GND, and to ensure that voltage changes due to the wiring resistance and high current do not affect the voltage at the small signal GND. In the same way, care must be taken to avoid changes in the GND wire pattern in any external connected component. 5) Thermal design Use a thermal design that allows for a sufficient margin in light of the power dissipation (Pd) under actual operating conditions. 6) Inter-pin shorts and mounting errors Use caution when positioning the IC for mounting on printed circuit boards. The IC may be damaged if there is any connection error, or if pins are shorted together. 7) Operation in strong electromagnetic fields Using this product in strong electromagnetic fields may cause IC malfunctions. Use extreme caution with electromagnetic fields. 8) ASO - Area of Safety Operation When using the IC, set the output transistor so that it does not exceed absolute maximum ratings or ASO. 9) Built-in thermal shutdown (TSD) circuit The TSD circuit is designed only to shut the IC off - when BA6238A driver outputs low - to prevent thermal runaway. It is not designed to protect the IC or guarantee its operation in the presence of extreme heat. Do not continue to use the IC after the TSD circuit is activated, and do not operate the IC in an environment where activation of the circuit is assumed. BA6247FP-Y BA6238A TON [℃] 170 150 THYS [℃] 30 50 *All temperature values are typical. 10) Capacitor between output and GND In the event a large capacitor is connected between the output and GND, if VCC and VIN are short-circuited with 0V or GND for any reason, the current charged in the capacitor flows into the output and may destroy the IC. Use a capacitor smaller than 1μF between output and GND.

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