TB6551FG Toshiba, TB6551FG Datasheet
TB6551FG
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TB6551FG Summary of contents
Page 1
... TOSHIBA Bi-CMOS Integrated Circuit Silicon Monolithic TB6551FG, TB6551FAG 3-Phase Full-Wave Sine-Wave PWM Brushless Motor Controller The TB6551FG/FAG is designed for motor fan applications for three-phase brushless DC (BLDC) motors. Features • Sine-wave PWM control • Built-in triangular-wave generator (carrier cycle = f /252 (Hz)) osc • ...
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... AD 4 bits Counter Output Data waveform select Internal Phase generator reference matching voltage Comparator Rotating FG direction ST/SP CW/CCW Protection & ERR reset GB 2 TB6551FG/FAG 10 Td Phase Comparator Phase 6 X Comparator V Setting V 8 dead Phase Comparator Y 5 time Switching 120°/180° ...
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... With built-in filter ( ≈ 1 μs) With built-in feedback resistor 5 V (typ.), 30 mA (max) Outputs 3PPR of positional signal Detects reverse rotation. Select active high or active low using the output logic select pin 3.8 μ Open: 2.6 μs Ground pin Ground pin 3 TB6551FG/FAG 2008-12-24 ...
Page 4
... V (min refout Analog e Input range 5.0 V Input voltage of Vrefout or higher is clipped to Vrefout. Analog Input range 5.0 V Input voltage higher is refout clipped refout 4 TB6551FG/FAG Input/Output Internal Circuit V V refout refout 2.4 kΩ refout refout 2.4 kΩ V refout 2.4 kΩ 120 Ω ...
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... H: V refout Digital L : 0.8 V (max) − (min refout Analog Gate block protected at 0 higher (released at carrier cycle) Operating range 2 MHz to 8 MHz (ceramic oscillation) 5 ± 0.5 V (max 30 mA) 5 TB6551FG/FAG Input/Output Internal Circuit V V refout refout 1.2 kΩ refout refout 2.4 kΩ 240 kΩ ...
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... Turn-on signal output pin Z Z Input/Output Signal Digital Push-pull output: ± (max) Digital Push-pull output: ± (max) Analog Push-pull output: ± (max 0.78 V (max) − 0.78 V (min refout 6 TB6551FG/FAG Input/Output Internal Circuit V V refout refout 120 Ω refout refout 120 Ω V refout 120 Ω ...
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... T stg Td dc, − Ta characteristic. D Symbol Min Typ. Max – 1.5 (1) When mounted on PCB Universal 50 mm × × 1 30% 1.0 (2) IC only R th (j-a) = 200°C/W (1) 0.5 ( 100 150 Ambient temperature Ta (°C) 7 TB6551FG/FAG Unit °C °C Unit V MHz 200 2008-12-24 ...
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... L A ⎯ = 2.5 V, Hall IN = 100 ⎯ Hall IN = 100 ⎯ Output start operation point ⎯ No output operation point ⎯ Input hysteresis width 0. OFF 0. OFF V refout 8 TB6551FG/FAG Min Typ. Max ⎯ ⎯ −40 −20 ⎯ −80 −40 ⎯ ⎯ refout ⎯ V refout − 1 ⎯ ...
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... This function switches the output of the turn-on signal between high and low. Pin OS: High = active high Low = active low ≤ 0 > 0 OFF 2.6 μs 11/f osc 3.8 μs 16/f osc = 4.19 MHz. osc f = Reference clock (ceramic oscillation) osc 9 TB6551FG/FAG 12 /(2 × 32 × 6) osc = 4 MHz, approx osc 2008-12-24 ...
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... Power supply 4.5 V (typ.) voltage Turn-on signal Output at high impedance REV Pin Low High High Low ) dc Output Turn-on Signal ( Low High High Low monitor) CC Output 10 TB6551FG/FAG V CC 4.0 V (typ.) GND V M Output at high impedance 2008-12-24 ...
Page 11
... Sine-wave pattern W (modulation signal) Triangular wave (carrier frequency) Driven by square wave (Note) 92% 0.2 V (typ.) Voltage instruction V Note: Output ON time is decreased by the dead time (carrier frequency × 92% − T Driven by sine wave 100% 0 0.2 V (typ.) Voltage instruction V 11 TB6551FG/FAG Comparator 4 × 2 refout ) e 2008-12- ...
Page 12
... Thus, when the Hall device is not placed in the correct position or during accelerating or decelerating, the modulation waveform is not continuous at every reset. (1) (3) (2) (6)’ (1)’ (2)’ (3)’ ' data moves forward by the 1/32 time width of the ' moves forward by the 1/32 time width of the time (2) from (1)’ 32 data items 12 TB6551FG/FAG * HU, HV, HW: Hall signals 2008-12-24 ...
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... FG signal FG (output Turn-on signal W when driven by square wave X (output Modulation waveform when driven by sine wave (inside of IC Hall signal HV (input signal FG (output Turn-on signal W when driven by square wave X (output Modulation waveform when driven by sine wave (inside of IC Forward Reverse 13 TB6551FG/FAG 2008-12-24 ...
Page 14
... When the motor is driven by a square wave, acceleration or deceleration is determined by voltage V motor accelerates or decelerates according to the On duty of T page 11.) Note: The motor is driven by a square wave if REV = High, i.e., if the Hall signals at start-up are lower and the motor is rotating in the reverse direction to that of the TB6551FG/FAG setting. Enlarged waveform T ...
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... On duty on page 11): Triangular wave frequency = carrier frequency = f Note: The motor is driven by a sine wave if REV = Low, i.e., if the Hall signals at start-up are higher and the motor is rotating in the same direction as that of the TB6551FG/FAG setting. (CW/CCW = Low High) Modulation signal Triangular wave (carrier frequency) /252 (Hz) ...
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... V , and GND lines since the IC may be destroyed by short-circuiting between outputs, air contamination faults, or faults due to improper grounding Setting 8 dead time V Power device Switching 4 Z 120°/180° & gate 12 OS block protection on/off (Note 1) (Note 1) Hall IC signal TB6551FG/FAG M 2008-12-24 ...
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... Package Dimensions Weight: 0.33 g (typ.) TB6551FG/FAG 17 2008-12-24 ...
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... Package Dimensions Weight: 0.28 g (typ.) TB6551FG/FAG 18 2008-12-24 ...
Page 19
... 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. TB6551FG/FAG 19 2008-12-24 ...
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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. TB6551FG/FAG 20 2008-12-24 ...