TB62215AFG,8,EL

TB62215AFG BiCD Integrated Circuit Silicon Monolithic TB62215AFG PWM Method Clock In Bipolar Stepping Motor Driver IC The TB62215AFG is a two-phase bipolar stepping motor driver using a PWM chopper. Fabricated with the BiCD process, the TB62215AFG is rated at 40 V/3.0 A . The on-chip voltage regulator allows control of a stepping motor with a single VM power supply. Features  Bipolar stepping motor driver  PWM constant-current drive  Clock input control HSOP28-P-0450-0.80  Allows two-phase, 1-2-phase and W1-2-phase excitations. Weight 0.79g(typ.)  BiCD process: Uses DMOS FETs as output power transistors.  High voltage and current: 40 V/3.0 A (absolute maximum ratings)  Thermal shutdown (TSD), overcurrent shutdown (ISD), and power-on-resets (PORs) Do not design your products or systems based on the information on this document. Please contact your Toshiba sales representative for updated information before designing your products. 1 2012-6-4 TB62215AFG Block Diagram Oscillator VREF Comparator Logic TSD/ISD/VRS Detect VREG Ach Pre-driver Bch Pre-driver Functional blocks/circuits/constants in the block chart etc. may be omitted or simplified for explanatory purposes. 2 2012-6-4 TB62215AFG Pin Assignment (Top View) CW/CCW 1 28 OSCM MO_OUT 2 27 VREF_A D_MODE1 3 26 VREF_B D_MODE2 4 25 NC CLK_IN 5 24 NC ENABLE 6 23 VCC RESET 7 22 VM FIN TB62215AFG FIN RS_A 8 21 RS_B NC 9 20 NC OUT_B NC 10 11 19 18 NC PGND 12 17 PGND OUT_A- 13 16 OUT_B- PGND 14 15 PGND OUT_A 3 2012-6-4 TB62215AFG Pin Function Pin number Pin name Function 1 CW/CCW Normal rotation/reversal of motor operation 2 MO_OUT Electric corner monitor terminal 3 D_MODE1 Excitation setting terminal 1 4 D_MODE2 5 CLK_IN 6 ENABLE Excitation setting terminal 2 Clock input terminal that decides rotational speed of motor. An electric corner advances by standing up. Output ON (5V)/turning off (GND) switch terminal of A and B channel. 7 RESET 8 RS_A 9 NC 10 OUT_A 11 NC 12 PGND 13 OUT_A- 14 PGND Power GND for motor drive 15 PGND Power GND for motor drive 16 OUT_B- 17 PGND 18 NC 19 OUT_B 20 NC 21 RS_B 22 VM 23 VCC Monitor terminal for internal generation 5V 24 NC No connection 25 NC No connection 26 VREF_B 27 VREF_A 28 OSCM An electric corner is initialized. Sense resistance connection terminal for current value setting of A channel output (Power supply terminal) No connection A channel output plus terminal No connection Power GND for motor drive A channel output minus terminal B channel output minus terminal Power GND for motor drive No connection B channel output plus terminal No connection Sense resistance connection terminal for current value setting of B channel output (Power supply terminal) Motor power supply monitor terminal Bias terminal for current value setting of B channel output Bias terminal for current value setting of A channel output Setting of frequency of oscillation circuit terminal for chopper 4 2012-6-4 TB62215AFG Function 1. CLK CLK Input Function Rise The electrical angle leads by one on the rising edge. Fall Remains at the same position. 2. ENABLE ENABLE Input Function H Output transistors are enabled (normal operation mode). L Output transistors are disabled (high impedance state). 3. CW/CCW CW/CCW Input Function OUT (+) OUT (-) H Forward (CW) H L L Reverse (CCW) L H X: Don't care 4. DMODE D_MODE1 D_MODE2 L L OSC_M, output transistors are disabled (in Standby mode) L H Two-phase excitation H L 1-2-phase excitation H H W1-2-phase excitation Function 5. RESET RESET Input Function L Normal operation mode H The electrical angle is reset. 5 2012-6-4 TB62215AFG Absolute Maximum Ratings (Ta = 25°C) Characteristics Symbol Rating Unit Motor power supply VM 40 V Motor output voltage VOUT 40 V Motor output current IOUT_S 3.0 A Logic power supply VCC 6 V Digital input voltage VIN 6 V MO output voltage VMO 6 V MO output sink current IMO 30.0 mA Power dissipation PD 1.3 W Operating temperature Topr -20 to 85 °C Storage temperature Tstg -55 to 150 °C Junction temperature Tj(Max) 150 °C Operation Ranges Characteristics Symbol Test Condition Min Typ. Max Unit Motor power supply VM - 10 24 38 V Motor output current IOUT Ta=25°C,1corresponding worth - 1.8 2.4 A VIN(H) H level of logic 2.0 - 5.5 V VIN(L) L level of logic -0.4 - 1.0 V MO output voltage VMO With a pull-up resistor - 3.3 5.5 V Clock input frequency fCLK - - - 100 kHz Chopper frequency fchop - 40 100 150 kHz Vref reference voltage Vref - GND - 3.6 V Voltage across the current-sensing resistor pins VRS - 0.0 ±1.0 ±1.5 V Digital input voltage This document is for reference only. Please contact us for sample datasheets. 6 2012-6-4 TB62215AFG Electrical Characteristics (Ta = 25°C, VM = 24 V, unless otherwise specified) Characteristics Digital input voltage Symbol VIH Test Condition Digital input pins VIL Min Typ. Max 2.0 3.3 5.5 GND - 0.8 Unit V Supply current IM Outputs open (two-phase excitation) - 5 7 mA Channel-to-channel differential ΔIOUT1 IOUT = 2.0A -5 0 5 % Output current error relative to the predetermined value ΔIOUT2 IOUT = 2.0A -5 0 5 % Drain-source ON-resistance of the output transistors (upper and lower sum) RON(D-S) IOUT = 2.0A,Tj = 25°C 0.4 0.6 0.8 Ω Power-supply voltage for internal circuit operation VCC ICC=5.0mA 4.75 5.00 5.25 V Power-supply current for internal circuit operation ICC - - 2.5 5.0 mA VM recovery voltage VMR - 7.0 8.0 9.0 V Overcurrent trip threshold ISD - 3.0 4.0 5.0 A 7 2012-6-4 TB62215AFG Package Dimensions 8 2012-6-4 TB62215AFG Notes on Contents Block Diagrams Functional blocks/circuits/constants in the block chart etc. may be omitted or simplified for explanatory purposes. IC Usage Considerations Notes on handling of ICs The absolute maximum ratings of a semiconductor device are a set of ratings that must not be exceeded, even for a moment. Do not exceed any of these ratings. Exceeding the rating(s) may cause device breakdown, damage or deterioration, and may result in injury by explosion or combustion. Use an appropriate power supply fuse to ensure that a large current does not continuously flow in the case of overcurrent and/or IC failure. The IC will fully break down when used under conditions that exceed its absolute maximum ratings, when the wiring is routed improperly or when an abnormal pulse noise occurs from the wiring or load, causing a large current to continuously flow and the breakdown can lead to smoke or ignition. To minimize the effects of the flow of a large current in the case of breakdown, appropriate settings, such as fuse capacity, fusing time and insertion circuit location, are required. If your design includes an inductive load such as a motor coil, incorporate a protection circuit into the design to prevent device malfunction or breakdown caused by the current resulting from the inrush current at power ON or the negative current resulting from the back electromotive force at power OFF. IC breakdown may cause injury, smoke or ignition. Use a stable power supply with ICs with built-in protection functions. If the power supply is unstable, the protection function may not operate, causing IC breakdown. IC breakdown may cause injury, smoke or ignition. Do not insert devices in the wrong orientation or incorrectly. Make sure that the positive and negative terminals of power supplies are connected properly. Otherwise, the current or power consumption may exceed the absolute maximum rating, and exceeding the rating(s) may cause device breakdown, damage or deterioration, and may result in injury by explosion or combustion. In addition, do not use any device inserted in the wrong orientation or incorrectly to which current is applied even just once. Carefully select external components (such as inputs and negative feedback capacitors) and load components (such as speakers), for example, power amp and regulator. If there is a large amount of leakage current such as from input or negative feedback condenser, the IC output DC voltage will increase. If this output voltage is connected to a speaker with low input withstand voltage, overcurrent or IC failure may cause smoke or ignition. (The overcurrent may cause smoke or ignition from the IC itself.) In particular, please pay attention when using a Bridge Tied Load (BTL) connection-type IC that inputs output DC voltage to a speaker directly. 9 2012-6-4 TB62215AFG Points to remember when handling of ICs Overcurrent Protection Circuit Overcurrent protection circuits (referred to as current limiter circuits) do not necessarily protect ICs under all circumstances. If the overcurrent protection circuits operate against the overcurrent, clear the overcurrent status immediately. Depending on the method of use and usage conditions, exceeding absolute maximum ratings may cause the overcurrent protection circuit to operate improperly or IC breakdown may occur before operation. In addition, depending on the method of use and usage conditions, if overcurrent continues to flow for a long time after operation, the IC may generate heat resulting in breakdown. Thermal Shutdown Circuit Thermal shutdown circuits do not necessarily protect ICs under all circumstances. If the thermal shutdown circuits operate against the over-temperature, clear the heat generation status immediately. Depending on the method of use and usage conditions, exceeding absolute maximum ratings may cause the thermal shutdown circuit to operate improperly or IC breakdown to occur before operation. Heat Radiation Design When using an IC with large current flow such as power amp, regulator or driver, design the device so that heat is appropriately radiated, in order not to exceed the specified junction temperature (TJ) at any time or under any condition. These ICs generate heat even during normal use. An inadequate IC heat radiation design can lead to decrease in IC life, deterioration of IC characteristics or IC breakdown. In addition, when designing the device, take into consideration the effect of IC heat radiation with peripheral components. Back-EMF When a motor rotates in the reverse direction, stops or slows abruptly, current flows back to the motor’s power supply owing to the effect of back-EMF. If the current sink capability of the power supply is small, the device’s motor power supply and output pins might be exposed to conditions beyond the absolute maximum ratings. To avoid this problem, take the effect of back-EMF into consideration in system design. 10 2012-6-4 TB62215AFG RESTRICTIONS ON PRODUCT USE  Toshiba Corporation, and its subsidiaries and affiliates (collectively "TOSHIBA"), reserve the right to make changes to the information in this document, and related hardware, software and systems (collectively "Product") without notice.  This document and any information herein may not be reproduced without prior written permission from TOSHIBA. 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Before customers use the Product, create designs including the Product, or incorporate the Product into their own applications, customers must also refer to and comply with (a) the latest versions of all relevant TOSHIBA information, including without limitation, this document, the specifications, the data sheets and application notes for Product and the precautions and conditions set forth in the "TOSHIBA Semiconductor Reliability Handbook" and (b) the instructions for the application with which the Product will be used with or for. Customers are solely responsible for all aspects of their own product design or applications, including but not limited to (a) determining the appropriateness of the use of this Product in such design or applications; (b) evaluating and determining the applicability of any information contained in this document, or in charts, diagrams, programs, algorithms, sample application circuits, or any other referenced documents; and (c) validating all operating parameters for such designs and applications. TOSHIBA ASSUMES NO LIABILITY FOR CUSTOMERS' PRODUCT DESIGN OR APPLICATIONS.  PRODUCT IS NEITHER INTENDED NOR WARRANTED FOR USE IN EQUIPMENTS OR SYSTEMS THAT REQUIRE EXTRAORDINARILY HIGH LEVELS OF QUALITY AND/OR RELIABILITY, AND/OR A MALFUNCTION OR FAILURE OF WHICH MAY CAUSE LOSS OF HUMAN LIFE, BODILY INJURY, SERIOUS PROPERTY DAMAGE AND/OR SERIOUS PUBLIC IMPACT ("UNINTENDED USE"). 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