TB62209FG Toshiba, TB62209FG Datasheet

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... TOSHIBA BiCD Processor IC Silicon Monolithic Stepping Motor Driver IC Using PWM Chopper Type The TB62209FG is a stepping motor driver driven by chopper micro-step pseudo sine wave. The TB62209FG integrates a decoder for CLK input in micro steps as a system to facilitate driving a two-phase stepping motor using micro-step pseudo sine waves. Micro-step pseudo sine waves are optimal for driving stepping motors with low-torque ripples and at low oscillation ...

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... Ccp B Pump Unit Ccp A MDT 1 MDT 2 Micro-step decoder 4-bit D/A (sine angle control COMP COMP 2 STANDBY Output (H-bridge) × 2 ENABLE Stepping Motor 2 TB62209FG Chopper OSC OCS CR-CLK converter Output control (Mixed Decay control) ISD TSD TSD V /V DDR MR protect V V ...

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... Decay Micro-step × 2 bit × 2 bit current data × 4 bit B unit side B unit side Mixed D/A circuit Decay circuit 3 TB62209FG DATA MODE Decay × 2 bit A unit side Micro-step current data × 4 bit A unit side Phase × 1 bit A unit side Phase × 1 bit ...

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... Chopping reference circuit 0 Output stop signal (ALL OFF) < Use in Charge mode > COMP circuit 1 (set current (Note 1) reached signal COMP (set current circuit monitor signal) 2 (Note 2) < Use in FAST MODE > TB62209FG CR Mixed Decay timing circuit Output control NF circuit RNF 2010-07-02 ...

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... Internal signal Charge stop pump signal circuit select circuit Charge pump circuit Mixed Decay timing table clear LOGIC signal 5 TB62209FG Chopping reference circuit Mixed Decay timing circuit Output circuit V M Power supply for upper drive output Output circuit V H Cop A ...

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... From output U2 control L1 circuit L2 L1 Output driver circuit Phase B Note: The diode on the dotted line is a body diode Output A L2 Output Output B L2 Output B PGND 6 TB62209FG 2010-07-02 ...

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... Input circuit (CLK, TORQUE, MDT, CW/CCW, DATA MODE, Drive Mode Input circuit (RESET, ENABLE, STANDBY ) input circuit ref Output circuit (MO, PROTECT OUT V SS 150 Ω To Logic IC GND 150 Ω To Logic IC GND 2 150 Ω GND 7 TB62209FG To D/A circuit GND 2010-07-02 ...

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... CW/CCW → GB − (OUT Note: Pin assignment above is different at data mode and PWM CLK 34 ENABLE 33 OUT B 32 RESET 31 DATA MODE OUT B 28 PGND TB62209FG ( PGND 26 OUT MDT 2 23 MDT 1 22 OUT A 21 TORQUE2 20 TORQUE1 19 PROTECT 8 TB62209FG 2010-07-02 ...

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... Not wired Connect current sensing resistor between this pin and V Connect to power ground The pin functions as a heat sink. Design pattern taking heat into consideration. Connect current sensing resistor between this pin and V Not wired Not wired 9 TB62209FG Remarks M M 2010-07-02 ...

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... B: 100%, phase A: 0%) In 2-Phase Excitation mode, outputs High level with electrical angle of 0 ° (phase B: 100%, phase A: 100%) Detects thermal shut down (TSD) and outputs High level Torque HH: 100% MDT HH: 100% 10 TB62209FG Remarks are generated. DD LH: 85% HL: 70% LL: 50% ⎯ HL: 75% LH: 37 ...

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... At this time we recommend ENABLE pin be set to Low to prevent miss operation. H: Resets electrical angle. L: Normal operation Forcibly turns all output transistors off. Electrical angle is incremented by one for each CLK input. CLK is reflected at rising edge. Determines chopping frequency. 11 TB62209FG Remarks ― to GND. SS ― ⎯ 2010-07-02 ...

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... For example used to change the excitation mode to another drive mode during output from MO (electrical angle = 0 ° ). Input Function Initializes electrical angle to 0 ° Normal operation Function 12.5% Mixed Decay mode 37.5% Mixed Decay mode 75% Mixed Decay mode 100% Mixed Decay mode (Fast Decay mode) Comparator Reference Voltage 100% 85% 70% 50% 12 TB62209FG 2010-07-02 ...

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... TB62209FG Remarks ( Standby mode ) Charge pump halted Locks only at 0 ° electrical angle. 45 ° → 135 ° → 225 ° → 315 ° → 45 ° 0%, 100% type 1-2 Phase Excitation 0%, 71%, 100% type 1-2 Phase Excitation 2-bit micro-step change ...

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... A + phase: High L H Output off ( OFF (Note) Load L1 ON PGND 14 TB62209FG Remarks Electrical angle incremented but no current output Electrical angle incremented but no motor rotation due output 45 ° 0 ° 0 ° 0 ° 0 ° 0 ° Output State A − phase: High A − phase: Low ...

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... 5 CLK chop Torque = 100 ref 120°C, please design the maximum current to the value from which TB62209FG °C °C °C Min Typ. Max 4.5 5.0 5 ⎯ 1.2 1.5 ⎯ GND V DD ⎯ ...

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... OUT (D 25°C, Source-Drain T j ⎯ OUT (D- 105°C, Drain-Source 1 OUT (D 105°C, Source-Drain TB62209FG Min Typ. Max 0.4 GND GND 0.8 − 0.4 200 400 700 ⎯ ⎯ 1.0 ⎯ ⎯ 1.0 1.0 2.0 3 ...

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... Vector θ θ 8) θ θ 7) θ θ 6) θ θ 5) θ θ 4) θ θ 3) θ θ 2) θ θ 1) θ θ TB62209FG = 1.0 A) OUT Min Typ. Max Unit ⎯ ⎯ 100 ⎯ ⎯ ...

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... TSD = not operating V — protect (L) condition = electrical angle = except 0° MO2 (H) (IB = 100 Except 0% set electrical angle = 0° V — MO2 (L) (IB = 100 0%) 18 TB62209FG Min Typ. Max ⎯ 2 1/4.8 1/5.0 1/5.2 − 1.0 V ⎯ 130 170 T TSD T TSD T ...

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... Ccp2 = 0.022 μ F Output ACTIVE (I OUT f — chop CR CLK = 800 kHz Ccp = 0.22 μ F, Ccp = 0.022 μ — ONG STANDBY = ON L → TB62209FG Min Typ. Max ⎯ ⎯ 120 ⎯ ⎯ 100 ⎯ ⎯ 50 ⎯ ⎯ 50 ⎯ ⎯ ...

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... Fast mode → RNF: current monitored (when set current value > output current) Charge mode → Fast mode 100% 75% f chop Set current value NF MDT 50% 20 TB62209FG MDT RNF Set current value RNF RNF Set current value RNF Set current value RNF 25% ...

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... Set current value Because current attenuates slowly, it takes a long time for the current to follow the set current value (or the current does not follow). Slow Fast Charge Slow Set current value 21 TB62209FG Slow Slow Charge Fast Fast Slow Fast Fast Charge Slow Fast ...

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... Fast Decay mode after Charge mode Set current value MDT (MIXED DECAY TIMING) point NF f chop Because of the set current value > the output current, no CHARGE MODE in the next cycle. RNF Set current value MDT (MIXED DECAY TIMING) point 22 TB62209FG f chop f chop NF RNF f chop NF RNF 2010-07-02 ...

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... The output current to the motor is in supply voltage mode after the current value set by V Torque reached at the set current value. Because of the set current value > the output current, FAST DECAY MODE in the next cycle. (Charge cancel function) Set current value RNF 23 TB62209FG NF RNF RNF , ref RS ...

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... When the CR counter is reset due to CLK signal input, CHARGE MODE is entered momentarily due to current comparison. Note: In FAST DECAY MODE, too, CHARGE MODE is entered momentarily due to current comparison. 12.5 ％ MIXED DECAY MODE f chop MDT NF Set current value RNF Momentarily enters CHARGE MODE 24 TB62209FG f chop MDT RNF 2010-07-02 ...

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... CLK signal is input in CHARGE MODE) f chop Internal CR CLK signal Set current value I OUT CLK signal input Reset CR-CLK counter here 12.5 ％ MIXED DECAY MODE f f chop MDT NF Set current value RNF Momentarily enters CHARGE MODE 25 TB62209FG chop MDT RNF 2010-07-02 ...

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... CLK signal is input in FAST DECAY MODE) f chop Internal CR CLK signal Set current NF value I OUT MDT Set current value CLK signal input Reset CR-CLK counter here 12.5 ％ MIXED DECAY MODE f f chop MDT NF RNF Momentarily enters CHARGE MODE 26 TB62209FG chop MDT RNF 2010-07-02 ...

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... CLK SIGNAL, INTERNAL CR CLK, AND OUTPUT CURRENT waveform (When CLK signal is input in 2 EXCITATION MODE) f chop Set current value I OUT 0 Set current value CLK signal input Reset CR-CLK counter here 12.5 ％ MIXED DECAY MODE f f chop RNF TB62209FG chop RNF MDT 2010-07-02 ...

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... pin OFF OFF (Note) Input ENABLE=L Load PGND Slow mode 28 TB62209FG pin OFF OFF (Note) Load L1 L2 OFF OFF PGND Forced OFF mode 2010-07-02 ...

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... pin OFF OFF (Note) Load PGND Slow mode U2 L1 OFF OFF OFF OFF ON OFF OFF 29 TB62209FG pin OFF ON (Note) Load OFF PGND Fast mode OFF L2 OFF ON ON 2010-07-02 ...

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... Standby signal at the above timing voltage within the rating are applied, output is turned off by internal reset. M output, make sure that specified voltage is input TB62209FG until operable. pin, the drops to the level of the time after power on ...

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... How to Calculate the Chopping and OSC Frequencies At constant current control, this IC chops frequency using the oscillation waveform (saw tooth waveform) determined by external capacitor and resistor as a reference. The TB62209FG requires an oscillation frequency of eight times the chopping frequency. The oscillation frequency is calculated as follows: 1 ...

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... Test Waveforms pLH V M GND Figure 1 Timing Waveforms and Names t CK 90% t pHL 50% 10 TB62209FG 90% 50% 10 2010-07-02 ...

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... CR CLK, a delay 1.25 ns (@f waveform and the internal CR CLK. CR-CR CLK delay CR Waveform Internal CR CLK Waveform Figure 2 Timing Waveforms and Names (CR and output) OSC-Fast Delay t chop 50% Slow = 100 kHz 400 kHz) occurs between the OSC chop CR 33 TB62209FG 50% 50% Fast 2010-07-02 ...

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... Parallel set signal occurs after the rising edge of CLK, therefore not reflected. The drive mode is changed when the electrical angle becomes 0 ° . Note: The TB62209FG uses the drive mode change reserve method to prevent the motor from step out when changing drive modes. ...

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... During MO output (phase data halted: the area of 3 above) to forcibly switch drive modes, a function to set RESET = High and to initialize the electrical angle is required. CW/CCW 45 ° (MO) At rising edge of CLK input 0 ° (MO) At rising edge of CLK input B = 100 TB62209FG 3 2 Driving mode input in the area figure is reflected. 2010-07-02 ...

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... P – Ta (Package power dissipation) D (1) HSOP36 R (96°C/W) th (j-a) When mounted on the board (140 mm × × 1.6 mm: 38°C/W: typ.) (2) Note 8.5°C/W th (j-a) P – 3.5 (2) 3 2.5 2 1.5 ( 100 125 Ambient temperature Ta (°C) 36 TB62209FG 150 2010-07-02 ...

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... V M voltage Charge pump voltage Operation area Usable area Supply voltage V ( 150 kHz chop 37 TB62209FG Maximum rating V M voltage Maximum rating Ccp A) (V) 2010-07-02 40 ...

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... ON, and Ccp 1 is charged from Ccp 2 via Di2. r2 and V (Ccp A pin voltage = charge pump voltage switching and the V chop Output switching Steady state (2) (3) (4) ( TB62209FG = Ccp A i1 (2) Ccp B Ccp 2 Ccp 1 0.022 μ F (2) 0.22 μ F Ccp C ...

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... When the voltage does not increase sufficiently, output DMOS R raises the temperature. Thus, use the capacitors under the capacitor combination conditions (Ccp 1 = 0.22 μ F, Ccp 2 = 0.022 μ F) recommended by Toshiba. t ONG turns lower than the normal, and TB62209FG Ccp 1 voltage + V after sure to M ...

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... Some capacitors exhibit a large change in capacitance according to the temperature. Make sure the above capacitance is obtained under the usage environment temperature 150 kHz under the conditions chop Ccp 1 – Ccp 2 0.05 Applicable range 0.045 0.04 0.035 0.03 0.025 0.02 Recommended 0.015 0.01 0.005 0 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 Ccp 1 capacitance (μF) 40 TB62209FG value 2010-07-02 M ...

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... In such a case, use a mode in which the mixed decay ratio is large. We recommend 37.5% Mixed Decay mode as the initial value (general condition). 100 IB (%) 41 TB62209FG STEP 2010-07-02 ...

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... Phase Excitation mode (a) MO CLK 100 [%] Phase B Phase A 0 − 100 1-2 Phase Excitation Mode (typ. A) 100 0 Electrical angle 360 ° CLK STEP 100 IB (%) 42 TB62209FG 2010-07-02 ...

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... Phase Excitation mode (b) MO CLK 100 [%] 71 Phase A Phase B 0 − 71 − 100 1-2 Phase Excitation Mode (typ. B) 100 71 0 Electrical angle 360 ° CLK STEP 71 100 IB (%) 43 TB62209FG 2010-07-02 ...

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... W1-2 Phase Excitation mode [%] 100 Phase A Phase B 0 − 38 − 71 − 92 − 100 W1-2 Phase Excitation Mode (2-bit micro step) 100 Electrical angle 360 ° CLK 92 100 71 IB (%) 44 TB62209FG STEP 2010-07-02 ...

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... Phase B − 38 − 56 − 71 − 83 − 92 − 98 − 100 2W 1-2 Phase Excitation Mode (3-bit micro step) 100 Electrical angle 360 ° CLK Phase 100 IB (%) 45 TB62209FG STEP 2010-07-02 ...

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... Phase Excitation mode [%] 100 Phase Phase − 10 − 20 − 29 − 38 − 47 − 56 − 63 − 71 − 77 − 83 − 88 − 92 − 96 − 100 Electrical angle 360 ° CLK STE 46 TB62209FG 2010-07-02 ...

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... For input data, see the current function examples. (Normalizing each step to 90 ° CCW (%) 47 TB62209FG θX θ 100 2010-07- ...

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... IN DMODE 1 PROTECT DMODE 2 MO DMODE 3 MDT 1 MDT 2 STANDBY Ccp A Ccp B Ccp C Ccp 1 Ccp 2 0.22 μ F 0.022 μ F SGND (V ) lines, and GND lines TB62209FG ref AB SGND 0.66 Ω Stepping M Motor 0.66 Ω SGND OPEN OPEN 5 V TORQUE TORQUE 2 ...

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... Package Dimensions Weight: 0.79 g (typ.) 49 TB62209FG 2010-07-02 ...

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... ON or the negative current resulting from the back electromotive force at power OFF. IC breakdown may cause injury, smoke or ignition. For ICs with built-in protection functions, use a stable power supply with. An unstable power supply may cause the protection function to not operate, causing IC breakdown. IC breakdown may cause injury, smoke or . ignition 50 TB62209FG 2010-07-02 ...

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... 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 maximum ratings. To avoid this problem, take the effect of back-EMF into consideration in your system design. 51 TB62209FG 2010-07-02 ...

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... Please contact your TOSHIBA sales representative for details as to environmental matters such as the RoHS compatibility of Product. Please use Product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the EU RoHS Directive. TOSHIBA assumes no liability for damages or losses occurring as a result of noncompliance with applicable laws and regulations. 52 TB62209FG 2010-07-02 ...