TA8401F SSOP16-P-225-1 000707EBA

TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC TA8401F FUNCTIONAL BRIDGE DRIVER FEATURES l Wide operating supply

TA8401F TA8401F TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC TA8401F TA8401F FUNCTIONAL BRIDGE DRIVER FEATURES l Wide operating supply voltage range. : VCC (opr.) = 3.0~15 V l Capsuled in flat package 16 pin. l Forward and reverse rotation, short brake modes are Available by means of rotation control signals. l High efficiency is obtained. l Can be used as interface driver. Weight: 0.14 g (Typ.) BLOCK DIAGRAM 1 2001-06-13 TA8401F TA8401F PIN FUNCTION PIN No. SYMBOL FUNCTIONAL DESCRIPTION 1 VCC Power supply voltage 2 NC Non Connection 3 IN1 Signal input terminal 4 IN2 Signal input terminal 5 IN3 Signal input terminal 6 IN4 Signal input terminal 7 NC 8 GND 2 Logic GND terminal 9 OUT a Output a 10 OUT A 11 OUT A 12 GND 1 13 GND 1 14 OUT B 15 OUT B 16 OUT b Truth table 1 No connection Output A Power GND terminal Output B Output b FUNCTION (1) Bridge driver (Truth table 1) CONTROL IN1 INPUT MODE IN2 IN3 IN4 OUT A OUTPUT OUT B OUT a OUT b OPERATING MODE NOTE H H ON (-500 mA) ON (-25 mA) Forward Rotation L H H H ON (-500 mA) ON (-25 mA) Reverse Rotation H H H H ON (-500 mA) ON (-500 mA) Brake L H H STOP H 1 Input Control H L 2 Input Control L L L H ON (-500 mA) ON (-25 mA) A ON L L L H ON (-500 mA) ON (-25 mA) B ON H/L H L H ON (-500 mA) ON (-500 mA) AB ON HIGH 2.0 V (MIN) L INHIBIT LOW 0.3 V (MAX) 2 2001-06-13 TA8401F TA8401F (2) Interface driver application If IN3 and IN4 connect to "HIGH" OUT A and OUT B can be used as a interface driver output for each inputs. (Connect OUT a and OUT b to GND) INPUT, OUTPUT CIRCUIT 3 2001-06-13 TA8401F TA8401F MAXIMUM RATINGS (Ta = 25°C) CHARACTERISTIC SYMBOL RATING UNIT VCC 18 V IO (AVE.) 0.5 A Peak Supply Voltage Output Current 350 (Note 1) mW Power Dissipation PD Operating Temperature Topr -30~75 °C Storage Temperature Tstg -55~150 °C 550 (Note 2) Note 1: No heat sink Note 2: This rating is obtained by mounting on 20 × 20 × 0.8 mm PCB that occupied above 60% of copper area. ELECTRICAL CHARACTERISTICS (Unless otherwise specified, Ta = 25°C, VCC = 5 V) SYMBOL TEST CIR- CUIT ICC1 1 Output open CW / CCW mode ICC2 1 Output open stop mode ICC3 1 ICC4 Vsat1 CHARACTERISTIC TYP. MAX 13 20 11 15 Output open brake mode 17 26 1 Inhibit (INPUT4 = "L") 2.4 7 2 IO1 = 500 mA, Lower side (Output A, B) 0.3 0.5 Vsat2 2 IO2 = 25 mA, Upper side (Output a, b) 0.3 IL 3 VC = 15 V 50 "H" Level VIN 1, 2 (H) 2.0 VCC "L" Level VIN 1, 2 (L) 0.8 "L" Level IIN1, 2 4 Input "L", VIN = 0 V (Source current) 20 "H" Level VIN 3, 4 (H) 1.0 VCC "L" Level VIN 3, 4 (L) 0.3 "H" Level IIN3, 4 4 Input "H" (Sink current) VIN = 1 V 30 µA VF 5 IF = 0.5 A, VCC = 0 V 1.3 V Supply Current Output Saturation Voltage Output TR Leakage Current Input Voltage Input Current Input Voltage Input Current Diode Forward Voltage TEST CONDITION 4 MIN UNIT mA V 0.55 µA V µA V 2001-06-13 TA8401F TA8401F TEST CIRCUIT 1. ICC1, 2, 3, 4 2. Vsat1, 2 3. IL 4. IIN 5. VF 5 2001-06-13 TA8401F TA8401F The functionable bridge driver, TA8401F TA8401F, is an IC specifically developed to control rotation switching in brush motors. This IC has been carefully designed and strengthened to withstand counter-electromotive force or start up rush current, which are problems in driving brush motors. However, as with other power ICs, application circuits must be designed not to apply surge voltage or excess current that exceeds the standard values. In addition, when designing PCBs, make sure the wiring pattern does not cause oscillation, which can result in equipment malfunction or destruction of the IC. The following are notes on TA8401F TA8401F use. These should be reflected at the design stage. (1) Power supply voltage To avoid the motor current affecting the TA8401F TA8401F control-side power supply, we recommend you use two power supplies: an external transistor power supply, and a TA8401F TA8401F control-side power supply. However, when using a single power supply, connect as in the diagram below. (2) Maximum voltage and current The maximum supply voltage (pin (1) for TA8401F TA8401F is 18V. Operating supply voltage is in the range of 1.8~15 V. No voltage exceeding this range should be applied to pin (1). The maximum current is 0.5 A (AVE.) or 1.5 A (PEAK). The circuit should be designed so that rush current at startup does not exceed peak current, and average current at steady operation does not exceed 0.5 A. (3) External diodes As the block diagram shows, TA8401F TA8401F has internal diodes. The lower two diodes, which are the IC's internal parasitic diodes, have a relatively large capacitance. However, when a motor with a large reactance such as a core motor is driven, the upper two diodes may be damaged by the motors counter-electromotive force. In such a case, connect external diodes in parallel. The lower diodes should not be subjected to high current. Therefore, in such cases as brake operation, external diodes should be connected. (4) PCB design The following points concern the TA8401F TA8401F pattern design around the power supply line (pin (1) and the pattern design of the GND (pin (8), pin (12) / (13). a) Ensure that the bypass capacitor between pin (1), and GND does not share impedance with other lines. b) The GND line should not be shared by other circuits. c) The capacitance of the bypass capacitor should be as large as possible. 6 2001-06-13 TA8401F TA8401F (5) Oscillation remedies To prevent noise from sparks when using brush motors, a capacitor may be connected between both pins. When using TA8401F TA8401F, the capacitor is connected between output pin (10) / (11), pin (14) / (15). This may cause oscillation. Therefore, avoid connecting the capacitor where possible. If connection is necessary to overcome noise, connect resistors in series as shown in the technical data. The values for the capacitor and resistors must be determined according to the motor. Note: Utmost care is necessary in the design of the output line, VCC and GND line since IC may be destroyed due to short-circuit between outputs, air contamination fault, or fault by improper grounding. 7 2001-06-13 TA8401F TA8401F PACKAGE DIMENSIONS SSOP16-P-225-1 SSOP16-P-225-1.00A Unit: mm Weight: 0.14 g (Typ.) 8 2001-06-13 TA8401F TA8401F RESTRICTIONS ON PRODUCT USE 000707EBA 000707EBA · TOSHIBA 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. · The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc. Unintended Usage of TOSHIBA products listed in this document shall be made at the customer's own risk. · The products described in this document are subject to the foreign exchange and foreign trade laws. · The 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. · The information contained herein is subject to change without notice. 9 2001-06-13