STK681-300

Ordering number : ENA0760A STK681-300 Overview Thick-Film Hybrid IC Forward/Reverse Motor Driver The STK681-300 is a hybrid IC for use in current control forward/reverse DC motor driver with brush. Applications • Office photocopiers, printers, etc. Features • Allows forward, reverse, and brake operations in accordance with the external input signal. • 2.9A startup output current and 5A peak brake output current. • Incorporating a current detection resistor (0.10Ω), fixed current control is possible. • Obviate the need to design for the dead time in order to turn off the upper- and lower drive devices when switching between the forward and reverse operation mode. Specifications Absolute maximum ratings at Tc = 25°C Parameter Maximum supply voltage 1 Maximum supply voltage 2 Input voltage Output current Brake current Allowable power dissipation Operating substrate temperature Junction temperature Storage temperature Symbol VCC1 max VCC2 max VIN max IO max IOB max PdPK max Tc max Tj max Tstg VCC2=0V No signal Logic input pins VCC2=5.0V, DC current VCC2=5.0V, square wave current, operating time 12ms (single pulse) No heat sink Conditions Ratings 52 -0.3 to +7.0 -0.3 to +7.0 2.9 5 3.1 105 150 -40 to +125 unit V V V A A W °C °C °C 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. If you should intend to use our products for applications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer' s products or equipment. 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. 62911HKPC 018-08-0006/70908HKIM No. A0760-1/10 STK681-300 Allowable Operating Ranges at Ta = 25°C Parameter Operating supply voltage 1 Operating supply voltage 2 Input voltage Output current 1 Output current 2 Output current 3 Brake current Symbol VCC1 VCC2 VIN IO1 IO2 IO3 IOB VCC2=5.0V, DC current, Tc≤70°C VCC2=5.0V, DC current, Tc=90°C VCC2=5.0V, DC current, Tc=105°C VCC2=5.0V, square wave current, operating time 1.3ms, Tc=105°C With signals applied With signals applied Conditions Ratings 10 to 42 5±5% 0 to VCC2 2.9 2.4 2.1 5 unit V V V A A A A Refer to the graph for each conduction-period tolerance range for the output current and brake current. Electrical Characteristics at Tc = 25°C, VCC1 = 24V, VCC2 = 5.0V Parameter VCC2 supply current FET diode forward voltage Output saturation voltage 1 Output saturation voltage 2 Output leak current Input high voltage 1 Input high voltage 2 Input low voltage Input current 1 Input current 2 Current set ting voltage Symbol ICCO Vdf Vsat1 Vsat2 IOL VIH1 VIH2 VIL IIH1 IIH2 Vref1 Conditions Forward or reverse operation If=1A (RL=23Ω) RL=23Ω, TR1, TR2 RL=23Ω, F1, F2+current detection resistance TR1, TR2, F1, and F2 OFF operation IN1, IN2 pins INH pin IN1, IN2, INH pins IN1, IN2 pins, VIH1=5V INH pin, VIH2=5V Between pins Vref1 and S.P 0.10 0.30 0.20 0.60 0.29 4.0 2.5 0.6 0.40 1.2 min typ 1.7 1.0 0.80 0.34 max 4 1.6 1.1 0.48 50 unit mA V V V μA V V V mA mA V Note: A fixed-voltage power supply must be used. Package Dimensions unit:mm (typ) 29.2 25.6 (20.47) 2.0 4.5 (12.9) (5.0) (5.0) (R1.7) 11.0 14.5 14.4 7.2 1 19 (3.5) 1.0 (5.6) 18 1.0=18.0 0.52 4.2 0.4 8.2 (20.4) 14.5 No. A0760-2/10 STK681-300 Derating Curve of Motor Current, IO, vs. STK681-300 Operating Board Temperature, Tc 3.5 IO - Tc 3.0 Motor current, IO - A 2.5 2.0 1.5 1.0 0.5 0 0 10 20 30 40 50 60 70 80 90 100 110 ITF02506 Operating Substrate Temperature, Tc- °C The range of DC operating current lies within the above derating curve in the VCC1 allowable operating range. The above motor current IO is valid within the chopping operating range of VCC1=28V or lower. The above operating substrate temperature, Tc, is measured immediately when the motor is started. Since Tc fluctuates due to the ambient temperature, Ta, the motor current value, and continuous or intermittent operations of the motor current, always confirm this values using an actual set. STK681-300 Allowable Brake Current Range 6 IOB - t 5 Brake Current, IOB - A 4 Tc=25°C 90°C 80°C 70°C 3 2 105°C 1 0 1.0 2 3 5 7 10 2 3 5 7 100 2 3 5 7 1000 ITF02507 Conduction Time, t - ms No. A0760-3/10 STK681-300 Internal Block Diagram NC 11 NC VCC1 OUT1 OUT2 VCC1 NC 10 9 8 6 7 5 NC 4 TR1 F1 IN1 12 TR2 F2 13 IN2 15 VCC2 82kΩ 16 Current control 5.1kΩ Overheating current control Vref1a RSI RSO 19 3 INH 14 Rs 0.10Ω 1 GND 2 S.P 18 Vref1b 17 Vref2 ITF02477 Sample Application Circuit STK681-300 VCC2=5V IN1 IN2 INH C2 10μF/50V + Vref2 17 Vref1a Vref1b RSO RSI 16 18 3 19 4 NC 5 NC 10 NC 11 NC 2 S.P ITF02476 15 12 13 14 7 9 VCC1=24V 8 OUT1 Motor CCW 6 OUT2 CW + C1 at least 47μF/50V GND 1 No. A0760-4/10 STK681-300 Motor Drive Conditions (H: High-level input; L: Low-Level Input) IN1 Stop 1 (standby) Stop 2 (supply power turned off by input during motor rotation) H H H L Forward (CW) Reverse (CCW) Brake H L L IN2 H H INH H or L H H H Remarks When motor is not rotating Stop signal that is applied when the motor is running and used to turn off power. L H L H L L L L or H No input signal is needed that turns off the upper- and lower-side drive devices when switching the rotational direction. GND side MOSFET ON * IN1=IN2=H and INH=L are prohibited during motor rotation. Notes (1) Be sure to set the capacitance of the power supply bypass capacitor, C1, so that the ripple current of the capacitor, which varies as motor current increases, falls within the allowed range. (2) Although the Vref2 pin is kept open, if connected to the GND or S.P pin, the overheating current control circuit ceases to function. (3) Fixed current chopping operations based on TR1 and TR2 are used for current control. The timing given below is used for OUT1 or OUT2 voltage output and for TR1 or TR2 collector current. OUT1 or OUT2 Output voltage VCC1-Vsat1 GND TR1 or TR2 Collector current IO peak (current setting value) 50μs 0A Motor current IO peak (current setting value) 0A (4) Do not connect the N.C pins shown in the internal block diagram or sample application circuit to a circuit pattern on the PCB. (5) This IC is not designed for use in an H-bridge driver for power supplies because the I/O response time of its GND side driving device, required when switching the motor rotational direction, is several scores of microseconds. It should be used only for DC motor drivers. No. A0760-5/10 STK681-300 (6) Sample Timing Diagram IN1 IN2 INH Reverse rotation Stop 2 Stop 1 Stop 1 Forward rotation Brake Reverse rotation Brake Forward rotation IN1 IN2 INH Reverse rotation Brake Stop 1 Stop 1 Forward rotation Brake Reverse rotation Stop 2 Forward rotation (7) Smoke Emission Precautions: There is a possibility of smoke emission if the hybrid IC is subjected to physical or electrical damage as the result of being used without compliance with the specifications. I/O Functions of Each Pin Pin Name IN1 IN2 INH OUT1 OUT2 Vref1a Vref1b Pin No. 12 13 14 8 6 16 18 Input pin for turning TR1 and F1 ON and OFF At high level, TR1: ON and F1: OFF; at low level TR1: OFF and F1: ON Input pin for turning TR2 and F2 ON and OFF At high level, TR2: ON and F2: OFF; at low level, TR2: OFF and F2: ON Pin for turning TR1 and TR2 OFF; At high level TR1 and TR2: OFF This pin is usually low or open. This pin connects to the motor and outputs source/sync current depending on conditions at IN1 and IN2. This pin connects to the motor and outputs source/sync current depending on conditions at IN1 and IN2. This pin is used for current setting for constant-current operation performed with the Vrefa and Vrefb pins connected A voltage of 0.29V at Tc=25°C results for Vref1. 0.29V is set by connecting 82kΩ and 5.1kΩ in series. Current detection resistance is Rs=0.10Ω. Set using IO peak=Vref1÷Rs. Vref2 S.P RSO RSI 17 2 3 19 Be sure to usually leave this pin open. The overheating control circuit can be made to stop operating by connecting this pin to the GND or S.P pin. Vref1 voltage can be lowered by connecting a resistor between the Vref1 and S.P pins. This pin is used to monitor the voltage across the current sensing resistor, Rs. Must be connected to the RSI pin. This pin is connected to the RSO pin and serves as an input to the circuit that compares the input with Vref1. Function No. A0760-6/10 STK681-300 Technical Information (1) Substrate temperature rise , ΔTc (no heat sink) - Internal average power dissipation, PdAV 80 70 60 50 40 30 20 10 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 ITF02508 ΔTc - PdAV Substrate temperature rise, ΔTc - °C Hybrid IC internal average power dissipation, PdAV - W (2) Internal average power dissipation, Pd, in the DC current-motor current, IO, characteristics (typ values for Pd) 8 Pd - IO VCC1=24V VCC2=5.0V Internal average power dissipation, Pd - W 7 6 5 4 3 2 1 0 0 Tc =1 0 0.5 1.0 5° C °C 25 1.5 2.0 2.5 3.0 3.5 ITF02509 Motor current, IO - A (3) Overheating current control characteristics 3.5 IO - Tc Load 2Ω+5mH 3.0 Average current, IO - A 2.5 2.0 1.5 1.0 0.5 0 0 10 20 30 40 50 60 70 80 90 100 110 120 ITF02510 Operating substrate temperature, Tc- °C Overheating current control functions to prevent driver failure if a motor lock malfunction occurs. No. A0760-7/10 STK681-300 (4) Derating curve of the package power dissipation, PdPK, against the ambient temperature, Ta 3.5 PdPK - Ta Allowable power dissipation, PdPK - W 3.0 2.5 2.0 1.5 1.0 0.5 0 0 20 40 60 80 100 120 ITF02511 Ambient temperature, Ta - °C The package power dissipation, PdPK, refers to the internal average power dissipation, Pd, permissible if used without a heat sink 1.4 Vdf - If Tc=25°C 1.6 1.4 1.2 Vsat1, Vsat2 - IO VCC1=24V, VCC2=5.0V, Tc=25°C 1.2 f( Vd 1.0 1, TR T R2) Vsat1, Vsat2 - V F2) F1, df ( V 1.0 Vdf - V 0.8 Vsat1 0.8 0.6 0.4 0.4 0.2 0 0 1 2 3 4 5 ITF02512 0.2 0 0 1 2 3 4 5 ITF02513 If - A 2.5 Vs at2 0.6 Vsat1 - VIH1 IO=1A 25 VOUT - VIH1 VCC1=24V, VCC2=5.0V, Tc=25°C, OUT1-OUT2, Pin load=1kΩ, 14pin=Low IO - A 2.0 8pin-GND voltage, VOUT - V 20 2A Vsat1 - V 1.5 15 2.9A 1.0 10 0.5 5 0 2.5 0 3.0 3.5 4.0 4.5 5.0 ITF02514 0 1 2 3 4 5 ITF02515 VIH1 - V 12pin-GND voltage, VIH1 - V No. A0760-8/10 STK681-300 25 VOUT - VIH2 VCC1=24V, VCC2=5.0V, Tc=25°C, OUT1-OUT2, Pin load=1kΩ, 12pin=High 250 IIH1 - VIH1 VCC1=24V, VCC2=5.0V, Tc=25°C 8pin-GND voltage, VOUT - V 20 200 10 IIH1 - μA 0 1 2 3 4 5 ITF02516 15 150 100 5 50 0 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 ITF02517 14pin-GND voltage, VIH2 - V 700 IIH2 - VIH2 VCC1=24V, VCC2=5.0V, Tc=25°C 12, 13pin-GND voltage, VIH1 - V 100 7 5 3 2 TR1, TR2 - A.S.O 600 Tc=25°C, Tj=150°C, Single pulse 500 IIH2 - μA IC - A 400 10 7 5 3 2 1.0 7 5 3 2 0 10 μs 300 10m s 10 0m s 1s s 1m 200 100 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 ITF02518 0.1 1.0 2 3 5 7 10 2 3 5 7 100 ITF02519 14pin-GND voltage, VIH2 - V 100 7 5 3 2 10 7 5 3 2 1.0 7 5 3 2 0.1 7 5 3 2 0.01 1.0 2 3 5 7 10 2 3 5 7 -Vce - V F1, F2 - A.S.O Tc=25°C, Tj=150°C, Single pulse 100 μs 1ms 10m s 100 ms 1s ID - A 100 ITF02520 VDS - V No. A0760-9/10 STK681-300 Input Pin Configurations IN1, IN2 INH 12 or 14 13 1 1 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. 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SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellectual property rights which has resulted from the use of the technical information and products mentioned above. T his catalog provides information as of June, 2011. Specifications and information herein are subject to change without notice. PS No. A0760-10/10