TB6588FG Toshiba, TB6588FG Datasheet
TB6588FG
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TB6588FG Summary of contents
Page 1
... TOSHIBA BiCD Integrated Circuit Silicon Monolithic 3-Phase Full-Wave PWM Driver for Sensorless DC Motors The TB6588FG is a three-phase full-wave PWM driver for sensorless brushless DC (BLDC) motors. It controls rotation speed by changing the PWM duty cycle, based on the voltage of an analog control input. Features • ...
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... Pin Assignment VM1 U V CW_CCW EN N.C. FMAX SEL_LAP IR1 IR2 N.C. W PGND OC WAVEP WAVEM VM2 SGND1 Fin Fin TB6588FG VM3 N.C. LA1 LA2 FPWM FST1 FST2 FG_OUT IR3 OSC_R OSC_C IP START SC VSP VREF WAVE SGND2 2008-4-25 ...
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... SP REF ≥ (typ.), START is driven low, starting DC excitation. When the IP voltage has SP /2, the TB6588FG switches to forced commutation mode. REF Connection pins for the oscillator capacitor Connection pins for the oscillator resistor ) ∼ − 5.25 MHz (typ.) when OSC_C = 100 pF and osc OSC_R = 20 kΩ ...
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... PWM osc PWM osc : 15° lead angle : H or Open : 7.5° lead angle : L : 0° lead angle = V). VM1, VM2 and VM3 are connected together inside the M 4 TB6588FG = 5 MHz osc = 5 MHz osc = 5 MHz osc = 5 MHz osc = 5 MHz 2008-4-25 ...
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... Startup Operation At startup, no induced voltage is generated due to the stationary motor, and the rotor position cannot be detected in sensorless mode. Therefore, the TB6588FG rotor is first aligned to a known position in DC excitation mode for an appropriate period of time, and then the motor is started in forced commutation mode. ...
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... UP 1 SPU (typ × (V DOWN 1 < 1 V), the capacitor C at the SC pin is instantly discharged Forced commutation frequency f : Forced commutation frequency f /128 osc /256 osc 6 TB6588FG , which is determined by the 1 input. When SP V SPU V SPL V SPU V SPL T DOWN − V )/4.5 µA (s) SPL − V )/37 µ ...
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... The maximum commutation frequency is exceeded. • The rotation speed falls below the forced commutation frequency. VSP Output pin ON OFF START IP (a) SC Fault detected ( ( higher V SP When the SC pin capacitor = 0.47 µF and = (a): T OFF TB6588FG × − VSP ) × − μ μ 880 ms (typ.) 2008-4-25 ...
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... The position detection is performed synchronizing with the PWM signal generated in the IC. Thus, a position detection error related to the PWM signal frequency is induced. Care should be taken when the TB6588FG is used in high-speed motor applications. The detection is performed on the falling edge of the PWM signal. An error is recognized when the terminal voltage exceeds the reference voltage. Detection lag < ...
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... Lead Angle Control The TB6588FG runs in forced commutation mode with a lead angle of 0° at startup. After switching to normal commutation mode, the lead angle is automatically changed to the value set by the LA1 and LA2 pins. Induced voltage PWM signal 30° (1) Lead angle of 0° ...
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... When the die temperature exceeds the rated TSD temperature, the TSD circuit detects it as the abnormal state of the motor and the output transistors are turned off. At the same time, START and SC are set High and Low respectively. After the TSD circuit is disabled, the TB6588FG restarts its operation following the startup sequence. VSP Output pin ...
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... OC Note: The overcurrent protection circuit (normally a current limiter) is not intended to provide protection against all abnormal conditions. Therefore, the TB6588FG should exit the abnormal state immediately after the overcurrent protection circuit is enabled. If the device is used beyond the maximum ratings, the overcurrent protection circuit may not operate properly, or the device may break down before the protection circuit is activated ...
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... FPWM, FST1, FST2 V REF Input 5. WAVE, WAVEM, WAVEP WAVEM WAVEP 7. FG_OUT V REF 100 Ω FG_OUT REF CW_CCW, LA1, LA2, FMAX, SEL_LAP, EN Input REF REF OC WAVE IR3 10. START START 12 TB6588FG V V REF REF REF REF 200 kΩ IR2 IR1 V REF 100 Ω 2008-4-25 ...
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... OSC_R,OSC_C REF REF REF OSC_R 12. VREF V V REF REF OSC_C 13 TB6588FG VREF 2008-4-25 ...
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... W D 3.2 (Note 5) −30 to 105 T °C opr −55 to 150 T °C stg = 150°C. jmax Symbol Min Typ. Max Unit ⎯ V (Note 1) GND V V IN1 REF P – (3) (2) ( 100 125 Ambient Temperature Ta (°C) 14 TB6588FG : 39°C/W) th (j-a) 150 : 65°C/W) th (j-a) : 39°C/W) th (j-a) 2008-4-25 ...
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... OC OC FPWM = (OSC_C = 100 pF, OSC_R = 20 kΩ) FPWM = (OSC_C = 100 pF, OSC_R = 20 kΩ) Thermal shutdown temperature TSD (Design target only.) Thermal shutdown hysteresis (Design target only.) = − REF REF 15 TB6588FG Min Typ. Max Unit ⎯ 3 ⎯ 4 ⎯ −75 −50 ⎯ ⎯ − ...
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... SGND2 SGND1 PGND OSC_C OSC_R , and GND lines since the IC may be destroyed in case of a short-circuit across outputs, a short-circuit to power supply short-circuit MCU FG_OUT VM1 VM2 VM3 IR3 IR2 IR1 Overcurrent protection OC circuit WAVEP Position WAVEM Fin WAVE TB6588FG SBD R 1 2008-4-25 ...
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... Package Dimensions Weight: 0.79 g (typ.) 17 TB6588FG 2008-4-25 ...
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... Otherwise, the current or power consumption may exceed the absolute maximum rating, and exceeding the rating(s) may cause the device breakdown, damage or deterioration, and may result injury by explosion or combustion. In addition, do not use any device that is applied the current with inserting in the wrong orientation or incorrectly even just one time. 18 TB6588FG 2008-4-25 ...
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... Damage due to Short-Circuits Between Neighboring Pin Short-circuits between pins 1 and 2, pins 3 and 4 and pins 12 and 13 cause permanent damage to the TB6588FG result, a large current continuously flow into the device, leading to smoke and possibly fire. To avoid this, the device application should be designed and adjusted properly, including the external fail-safe mechanism, such as power supply fuses and overcurrent protection circuitry for power supply ...
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... Please use this product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances. Toshiba assumes no liability for damage or losses occurring as a result of noncompliance with applicable laws and regulations. 060819_AF • The products described in this document are subject to foreign exchange and foreign trade control laws. 021023_D 021023_B 060106_Q 20 TB6588FG 070122EBA_R6 060925_E 2008-4-25 ...