TA8068F

TA8068F TOSHIBA | Alldatasheet

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TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC TA8068F Intelligent Stepping Motor Driver The TA8068F is a stepping motor driver with a current capacity of 1.5A. Inputs INA and INB are combined to control the four outputs. Since the inputs are TTL-compatible, this IC can be controlled directly from a CPU or other control system. The IC also incorporates various protective functions as well as a self-diagnostic function for diagnostic function for diagnostic output.

FEATURES

/Gb7/G20Output current capacity : 1.5 A (max) /Gb7/G20Low standby current : 0.1 mA (max) /Gb7/G20Built−in Protective Functions : Over-Voltage Protection/ Short-Circuit Protection(latch) / Thermal-Shutdown /Gb7/G20Self−diagnostic Output : On Short-Circuit Detection /Gb7/G20Recommended operating supply voltage range : V CC = 8~16 V /Gb7/G20Separate GND for output and logic control sections /Gb7/G20HSOP20-Pin Power Flat Pakage BLOCK DIAGRAM AND PIN LAYOUT Weight: 0.79 g (typ.) VCC 6 75 4 1 10 14 15 20 17 16 ST INA OA OA P-GND OB OB INB L-GND DG R LATCH MULT PROTECTION CONTROL LOGIC S R R

PIN No. SYMBOL DESCRIPTION

1 V CC

Power supply pin. This pin has a function to turn off the output when the applied voltage exceeds 30V (Typ.), thus protecting the IC and the motor load. 4 ST When this pin is opened or grounded, the output turns off, thus reducing the current consumption to 100µA or less. If standby mode is not needed, the pin is connected to V CC. 5 INA This is input terminal which controls output condition of pin 6 and pin 7. PNP-type voltage comparator is built in. 6 OA PNP-type complementary output pin with a current capacity of 1.5A. This pin is controlled by the input from pin 5. When the output is supplied with a current exceeding the detection current (4A Typ.) because of load short-circuit, the output is latched to the OFF state after a 50µs (Typ.) delay in order to protect the IC. 7 OA Output pin of the inversion of pin 6. This terminal has the same function as pin 6 and is controlled by pin 5. 10 P-GND Ground terminal of output section which is usually connected with pin 17. 14 OB Output pin of the inversion of pin 15. This terminal has the same function as pin 6 and is controlled by pin 16. 15 OB This terminal has the same function as pin 6 and is controlled by pin 16. 16 INB This is input terminal which controls output condition of pin 14 and pin 15. PNP-type voltage comparator is built in. 17 L-GND Ground terminal of logic control section which is usually connected with pin 10. 20 DG Self-diagnostic output pin. This signal goes low when the output is short-circuited while the input is on (high). The output will be latched after a 50µs (Typ.) delay when the load is short-circuited.This pin supplies an NPN open-collector output. 2, 3, 8, 9, 11, 12, 13, 18, 19 N.C Not connected. (Electrically, this pin is completely open.) TIMING CHART 4 A (typ.) INA INB OA OB OA OB DG ST IO (OA) Normal Normal Short -Circuit 50 µs Delay

TRUTH TABLE INPUT / OUTPUT INPUT OUTPUT INA INB ST OA OA OB OB DG L L H OFF ON OFF ON OFF L H H OFF ON ON OFF OFF H L H ON OFF OFF ON OFF H H H ON OFF ON OFF OFF ― ― L OFF OFF OFF OFF OFF ― ― OPEN OFF OFF OFF OFF OFF MAXIMUM RATINGS (Ta = 25°C) CHARACTERISTIC SYMBOL RATING UNIT VCC 30 Supply Voltage VCC 60 (1s) V Input Voltage V IN −0.3~7 V Output Voltage V OUT −0.3~VCC V Output Current I O·AVE 1.5 (*1) A Power Dissipation P D 2.0 (*2) W Operation Temperature T opr −40~110 °C Storage Temperature T stg −55~150 °C Lead Temperature−Time T sol 260 (10s) °C Note *1: Maximum current value when an infinite heat sink is used. Please refer to the table “MAXIMUM OUTPUT CURRENT (RECOMMENDED VALUES FOR APPLICATION)” when designing an application circuit. Note *2: 50 × 50 × 1.6 mm 50% Cu mounted HSOP20-P-450-1.00 THERMAL RESISTANCE DATA (Ta = 25°C) CHARACTERISTIC TEST CONDITION RATING UNIT Rθ j-a ― 125 °C/W Rθ j-c ― 13 °C/W PD1 Without radiation board 9.6 W PD2 50 × 50 × 1.0 mm Iron board mounted 3.2 W PD3 50 × 50 × 1.6 mm 50% Cu mounted 2.0 W PD4 Without radiation board 1.0 W

MAXIMUM OUTPUT CURRENT (RECOMMENDED VALUES FOR APPLICATION) Allowable Rating (DC) Allowable Power Dissipation (pulse: 10 sec) Ambient Temperature Ta (°C) Heat Radiation Condition Power dissipation (W) Output current (mA) Power dissipation (W) Output current (mA) IC itself 1.0 330 2.9 1000 Using a board (PD3) 2.0 720 3.9 1040 IC itself 0.52 50 1.5 550 Using a board (PD3) 1.04 350 2.0 720 IC itself 0.36 0 1.0 330 105 Using a board (PD3) 0.72 150 1.4 500 VCC = 16 V. Output current is defined by the maximum current in one channel. ELECTRICAL CHARACTERISTICS (VCC = 8~16 V, Tc = −40~110°C,unless otherwise specified) CHARACTERISTIC SYMBOL PIN TEST CIR- CUIT TEST CONDITION MIN TYP. MAX UNIT Current Consumption I CC VCC ― ― 12 25 40 mA VIL ― ― ― ― 0.8 Input Voltage VIH INA/INB ― ― 2.4 ― ― V IIL ― V IN = 0.4 V −50 ― ― Input Current IIH INA/INB ― V IN = 5 V ― ― 10 µA VIL ― ― ― ― 0.8 Input Voltage VIH ST ― ― 3.0 ― ― V Output Saturation Voltage V SAT OA, OA OB, OB ― I O = 1.5 A/Ta = 25°C ― 1.25 1.5 V Output Leakage Current I LEAK OA, OA OB, OB ― V O = VCC ― ― 10 µA Output Voltage V OL ― I OL = 3 mA ― ― 0.3 V Output Leakage Current I LEAK DG ― V O = VCC ― ― 10 µA Over-current Detection ISD ― ― ― 1.8 4 6 A TSD-H ― ― OUT = ON → OFF ― 160 ― Shutdown Temperature TSD-L ― ― OUT = OFF → ON ― 130 ― Over-voltage Detection V SD ― ― ― 27.5 30 33 V Standby Current IST V CC ― ST = GND ― ― 100 µA tpLH ― ― ― ― 1 10 Transfer Delay Time tpHL ― ― ― ― 1 10 µs Note: The parameter values above are guaranteed in the operating voltage rage of 8 V to 16 V. If the guarant eed range is exceeded in practical use, make sure that the IC operates normally in application.

OUTPUT CURRENT I OUT ( A ) VOL – IOUT OUTPUT SATURATION VOLTAGE V OL (V) AMBIENT TEMPERATURE Ta (°C) PD max – Ta MAXIMUM POWER DISSIPATION P D max (W) 110°C 25°C Tc = −40°C 2.0 0.5 1.0 1.5 0.5 1.0 1.5 DETECTION CURRENT I SD (A) CASE TEMPERATURE Tc (°C) ISD – Tc −40 0 40 80 120 CASE TEMPERATURE Tc (°C) VSD – Tc DETECTION VOLTAGE V SD ( V ) −40 0 40 80 120 PD2 50 100 150 200 PD1 PD3 PD4 9.6 3.2

*: Connect this capacitor as close to the IC as possible SM VDD VSS 5 V CPU SYSTEM INB INA DG TA8068F OB OB VCC OA OA V 10 Ω 10 µF* P-GNDL-GND 10 kΩ ST OA 7 15 14 CONTROL LOGIC SHORT- CIRCUIT PROTECTION THERMAL- SHUTDOWN OVER-VOLTAGE PROTECTION CONSTANT VOLTAGE 165 INA INB OA OB OB P-GND DG VCC ST L-GND

Weight: 0.79 g (Typ.)

/Gb7/G20TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the “Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability Handbook” etc.. /Gb7/G20The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others. /Gb7/G20The information contained herein is subject to change without notice. 000707EAA_SRESTRICTIONS ON PRODUCT USE