TB6524FN TOSHIBA Bi−CMOS INTEGRATED CIRCUIT SILICON MONOLITHIC TB6524FN DC MOTOR DUAL FULL BRIDGE DRIVER (H−SWITCH) The TB6524FN is a bridge driver most suitable for switching between normal rotation and reverse rotation and can control three modes, normal rotation, reverse rotation, and stop. The driver is capable of handling output current of 100 mA. Fixed current operation is also available as the control method. FEATURES l Operating voltage range : VCC = 1.5 ~ 7.0 V (normal operation) VCC = 2.0 ~ 7.0 V (fixed current operation) l Output current : IOUT = 100 mA l Built−in diode for absorbing counter electromotive force Weight: 0.07 g (Typ.) l Built−in enable terminal BLOCK DIAGRAM 1 2001-06-13 TB6524FN PIN FUNCTION PIN No. SYMBOL DESCRIPTION 1 ENABLE 2 INA Channel A input signal terminal 3 GND Ground terminal 4 OUTA1 5 RFA1 Channel A : Output current is set by external resistance. 6 RFA2 Channel A : Output current is set by external resistance. 7 OUTA2 8 VCC Power supply 9 VCC Power supply 10 OUTB2 11 RFB2 Channel B : Output current is set by external resistance. 12 RFB1 Channel B : Output current is set by external resistance. 13 OUTB1 14 GND Ground terminal 15 INB Channel B input signal terminal 16 VCC Logic power supply Enable signal input, Hi : Enabled, Low : All output OFF Channel A output terminal Channel A output terminal Channel B output terminal Channel B output terminal (8) VCC, (9) VCC, (16) VCC, (3) GND and (14) GND must be connected to VCC or GND. 2 2001-06-13 TB6524FN FUNCTION INA INPUT INB ENABLE OUTA1 OUTA2 OUTB1 OUTB2 H H H H L H L L L H L H L H H L H H L L H L H H L H H L H/L H/L L ∞ ∞ ∞ ∞ ∞: Note: OUTPUT High impedance Before you change "Enable" to Low from High on the operating, change to Low both "INA" and "INB". MAXIMUM RATING (Ta = 25°C) CHARACTERISTIC SYMBOL RATING UNIT VCC (Max) 8 V IOUT 0.1 A Power Dissipation (Tc = 25°C) PD 0.5 (Note) W Operating Temperature Topr −30 ~ 75 °C Storage Temperature Tstg −55 ~ 150 °C Power Supply Voltage Output Current Note: IC single unit 3 2001-06-13 TB6524FN ELECTRICAL CHARACTERISTICS (Ta = 25°C, VCC = 5 V) CHARACTERISTIC Power Supply Current SYMBOL TEST CIR− CUIT ICC1 1 ICC2 2 Upper VSAT U−1 Output Saturation Voltage Lower VSAT L−1 Upper Lower VSAT L−2 Output Current VCC Dependency UNIT Standby (ENABLE OFF) ― 0.1 1.0 µA Normal / reverse (for 2 channels) output OPEN ― 32 45 mA IOUT = 100 mA at normal / reverse ― 0.2 0.3 IOUT = 100 mA at normal / reverse ― 0.2 0.3 IOUT = 50 mA at normal / reverse ― 0.1 0.25 IOUT = 50 mA at normal / reverse ― 0.1 0.25 V 12 Ω between RFA1, 2 / RFB1, and 2−GND Load 7.5 Ω 55 65 75 mA ∆ΙOUTC ,VCC 5 IOUT C = 10 ~ 100 mA (Rf : 8 Ω, 80 Ω) VCC = 2.0 ~ 7.0 V Load 5 Ω −8 5 % ― 1.0 ― ― 560 µH (7.5 Ω) Rf = 16 Ω ― 6.0 ― ― 2.0 ― 1.5 ― VCC 0 ― 0.3 ― 430 550 ― ― 30 Overshoot Duration tos Output Transistor Leak Current MAX 4 tsw Input Current TYP. IOUT C Output Current Switching Duration Input Voltage MIN 3 VSAT U−2 Setting Output Current TEST CONDITION trs VIH VIL Iin Upper ILU Lower ILL 6 INA, INB, ENABLE 7 Sync VIN = 5.0 V Input terminal 4.7 kΩ 8 VL = 7 V V µA µA ― 4 µs ― 30 2001-06-13 TB6524FN tsw, trs, tos 5 2001-06-13 TB6524FN TEST CIRCUIT 1 ICC1 TEST CIRCUIT 3 VSAT U−1,2 / VSAT L−1,2 Note: TEST CIRCUIT 2 ICC2 Set RA and RB so that IOUT = 50mA and 100mA is satisfied. 6 2001-06-13 TB6524FN TEST CIRCUIT 4 IOUT C TEST CIRCUIT 6 VIH / VIL TEST CIRCUIT 8 ILU / ILL TEST CIRCUIT 5 ∆IOUT C TEST CIRCUIT 7 7 Iin 2001-06-13 TB6524FN 8 2001-06-13 TB6524FN APPLICATION CIRCUIT 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. 9 2001-06-13 TB6524FN PACKAGE DIMENSIONS SSOP16−P−225−0.65B Unit: mm Weight: 0.07 g (Typ.) 10 2001-06-13 TB6524FN RESTRICTIONS ON PRODUCT USE 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. 11 2001-06-13