TB6586BFG TOSHIBA | Alldatasheet
Document overview
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Technical content
Features
- Designed for low-speed motor operation: Minimum ON duty = 0.6 μs (typ.)
- Upper-phase PWM control
- Built-in triangular-wave generator
- Support of a bootstrap circuit
- Built-in Hall amplifier (support of a Hall element)
- Selectable 120°/150° energization
- Built-in lead angle control function
- Overcurrent protection signal input pin (VRS = 0.5 V (typ.))
- Built-in regulator (Vrefout = 5 V (typ.), 35 mA (max))
- Operating supply voltage range: VCC = 6.5 to 16.5 V
- Pulses-per-revolution output: FGC = High: 1 pulse/electrical angle: 360° FGC = Low: 3 pulses/electrical angle: 360° P-SSOP24-0613-1.00-001 Weight: 0.36 g (typ.)
Pin No. Symbol Description
1 VSP Speed control input
2 HUP U-phase Hall signal input (+) pin
3 HUM U-phase Hall signal input (−) pin
4 HVP V-phase Hall signal input (+) pin
5 HVM V-phase Hall signal input (−) pin
6 HWP W-phase Hall signal input (+) pin
7 HWM W-phase Hall signal input (−) pin
8 Vrefout Outputs reference voltage signal (5 V / 35 mA)
9 LA Lead angle setting signal input pin (30° / 4 bits)
10 GND Ground pin
11 CW/CCW Rotation direction signal input pin
12 OSC/C Connect to capacitor for PWM oscillator
13 OSC/R Connect to resistor for PWM oscillator
14 RS Overcurrent protection (0.5 V) 15 RESET Energization width toggle pin (Low: 150°, High: Reset, 6.35 V: 120°)
16 VCC Power supply
17 FGC FG pulse count select (High = 1 ppr; Low or open = 3 ppr)
18 UL U-phase output pin (Low side)
19 VL V-phase output pin (Low side)
20 WL W-phase output pin (Low side)
21 UH U-phase output pin (High side)
22 VH V-phase output pin (High side)
23 WH W-phase output pin (High side)
24 FG Pulses-per-revolution output
Input/Output Equivalent Circuits The equivalent circuit diagrams may be simplified or some parts of them may be omitted for explanatory purposes. Pin Description Symbol Input/Output Signal Input/Output Internal Circuit Positional signal input pin HUP HUM HVP HVM HWP HWM Analog/Digital Hysteresis ± 7.5 mV (typ.) Digital filter: 1.6 μs (typ.) Speed control signal input pin VSP Analog Input range 0 to 7 V Rotation direction signal input pin L: Forward (CW) H: Reverse (CCW) CW/CCW Digital L: 0.8 V (max) H: V refout − 1 V (min) Test input If CW/CCW = 6.35 V (typ.) or higher, the system resets Hysteresis 150 mV (typ.) Reset input L: 150° energization H: Reset RESET Digital L : 0.8 V (max) H: V refout − 1 V (min) If RESET = 6.35 V (typ.) or higher, then 120° energization drive is selected. Hysteresis 150 mV (typ.) During a reset: Output OFF (all phases Low). The internal counter continues to operate. Lead angle setting signal input LA Analog Input range 0 to 5.0 V (V refout) Electrical angle 0° to 28° can be divided into 16 by 4-bit data. Lead angle 0° : LA = 0 V (GND) Lead angle 28°: LA = 5 V (Vrefout) Vrefout 100 kΩ 100 kΩ VCC 70 kΩ Reset 120° 20 kΩ 110 kΩ VCC 70 kΩ CW/CCW Reset 20 kΩ 110 kΩ Vrefout Vrefout 150 kΩ 100 Ω
Pin Description Symbol Input/Output Signal Input/Output Internal Circuit Overcurrent protection signal input RS Analog Analog filter 0.5 μs (typ.) If RS > 0.5 V (typ.), UL, VL and WL pin goes low (released at carrier cycle) FG pulse count select FGC Digital L: 0.8 V (max) H: Vrefout − 1 V (min) Low or Open: Three pulses/electrical angle: 360° High: One pulse/electrical angle: 360° Pulses-per-revolution output FG Digital Push-pull output (± 2 mA (max)) Reference voltage signal output pin Vrefout 5.0 ± 0.5 V (35 mA) Energization signal output UH UL VH VL WH WL Push-pull output (± 2 mA (max)) Vrefout Vrefout 100 Ω VCC VCC VCC Vrefout Vrefout 100 Ω Vrefout 200 kΩ 100 Ω Vrefout Vrefout 200 kΩ 5 pF 200 kΩ
In the block diagram, part of the functional blocks or constants may be omitted or simplified for explanatory purposes.
16 VCC
(internal reference voltage) Low-voltage protection circuit
11 CW/CCW
150° energization matrix
2 HUP
3 HUM
4 HVP
5 HVM
6 HWP
7 HWM
12 OSC/C
13 OSC/R
0.5 V GND LA Lead angle setting circuit Output circuit
17 FGC
Absolute Maximum Ratings (Ta = 25°C) Characteristics Symbol Rating Unit Supply voltage VCC 18 V Input voltage VIN1 −0.3 to 8 (Note 1) V VIN2 −0.3 to 8.5 (Note 2) VIN3 −0.3 to Vrefout + 0.3 (Note 3) Energization output current IOUT 2 mA Power dissipation PD 0.8 (Note 4) W 1.0 (Note 5) Operating temperature Topr −30 to 85 Storage temperature Tstg −55 to 150 Note 1: CW/CCW, RESET Note 2: V SP Note 3: LA, FGC Note 4: Without a heatsink Note 5: When mounted on a universal board (50 × 50 × 1.6 mm, Cu 10%) Operating Ranges (Ta = 25°C) Characteristics Symbol Min Typ. Max Unit Supply voltage VCC 6.5 15 16.5 V Oscillation frequency Fosc 2 5 8 MHz Ambient temperature Ta ( °C) PD – Ta Power dissipation P D (W) 1.5 1.0 0.5 (1) IC only (2) When mounted on universal board 50 × 50 × 1.6 mm Cu 10% Rth (j-a) = 125°C/W 50 100 150 200 (2) (1)
Electrical Characteristics (unless otherwise specified Ta = 25°C, VCC = 15 V) Characteristics Symbol Test Condition Min Typ. Max Unit Supply current ICC Vrefout = OPEN, OSC/C = 390 pF, OSC/R = 9.1 kΩ 2.0 5.5 10 mA Input current IIN (LA) VIN = 5 V LA ― 25 50 μA IIN (SP) VIN = 5 V V SP ― 35 70 IIN (RESET) VIN = 5 V RESET ― 25 50 IIN (CW) VIN = 5 V CW/CCW ― 25 50 IIN (FGC) VIN = 5 V FGC ― 25 50 IIN (RS) VIN = 0 V RS ― −25 −50 Input voltage VIN(CW/CCW) RST System reset 6.0 6.35 7.1 V High CCW (Reverse) Vrefout − 1 Vrefout Low CW (Forward) 0 0.8 VIN(RESET) RST 120° energization 6.0 6.35 7.1 V High Output off reset 2.2 Vrefout Low 150° energization 0 ― 0.8 VSP H PWM ON duty 95% 5.1 5.4 5.7 V M Refresh → Start motor operation. 1.8 2.1 2.4 L Energization OFF → Refresh 0.7 1.0 1.3 Hall element input Input sensitivity V S Differential input 40 ― ― mVpp Common mode VW 1.5 ― 3.5 V Input hysteresis VH Input hysteresis voltage VH (2) RESET, CW/CCW (Note) ― 0.15 ― V Input delay TRS RS → Output Off. RS input: 0 V/ 2 V ― 1.2 ― μs Output voltage VOUT − H IOUT = 2 mA Vrefout − 0.8 Vrefout − 0.3 ― V VOUT − L IOUT = 2 mA ― 0.3 0.8 VFG (H) IOUT = 2 mA FG 4 ― ― VFG (L) IOUT = 2 mA FG ― ― 1.0 Vrefout1 IOUT = 15 mA V refout 4.7 5.0 5.3 Vrefout2 IOUT = 35 mA V refout 4.5 5.0 5.3 Output leakage current IL (H) VOUT = 0 V ― 0 1 μA IL (L) VOUT = 5 V ― 0 1 Electrical current detector VRS RS 0.46 0.5 0.54 V Lead angle correction TLA (0) LA = 0 V or open, Hall IN = 100 Hz ― 0 ― ° TLA (2.5) LA = 2.5 V, Hall IN = 100 Hz ― 17 ― TLA (5) LA = 5 V, Hall IN = 100 Hz ― 28 ― VCC monitor VCC (H) Output start operation point 5.7 6.0 6.3 V VCC (L) No output operation point 4.7 5.0 5.3 VH (4) Input hysteresis width (Note) ― 1.0 ― PWM oscillator frequency (carrier frequency) FC (20) OSC/C = 390 pF, OSC/R = 9.1 kΩ 18 20 22 kHz FC (18) OSC/C = 390 pF, OSC/R = 10 kΩ 16.2 18 19.8 Output duty Ton (max) OSC/C = 390 pF, OSC/R = 9.1 kΩ 92 95 98 % Ton (min) OSC/C = 390 pF, OSC/R = 9.1 kΩ ( Note) ― 0.6 ― μs Note: Not tested in production
- Basic Operation At startup, the motor runs at 120° energization. When the position detection signal reaches a revolution count of fs = 5 Hz or higher, the rotor position is extrapolated from the position detection signal and output is activated using the lead angle based on the LA signal. Startup - 5 Hz: 120° energization fs = fosc/(120 × 25 × 28) 5 Hz or higher: 120° energization or 150° energization * A pproximately 5 Hz if fosc = 5 MHz. *: At 5 Hz or higher, operation is performed in accordance with commands from RESET and LA pins. When the motor is running at 5 Hz or lower and in reverse (in accordance with the timing chart), it will be driven at 120° energization for a lead angle of 0°. 2. V SP Voltage Command Signal Function (1) When voltage instruction is input at VSP ≤ 1.0 V: Output is turned off (gate block protection). (2) When voltage instruction is input at 1.0 V < VSP ≤ 2.1 V (refresh operation): The lower transistor is turned on at a regular (carrier) cycle. (ON duty: Ton = 18/fosc) (3) When a voltage instruction is input at VSP > 2.1 V: The drive signal is output using the energization method configured using the RESET pin. Note: At startup, to charge the upper transistor gate power supply, turn the lower transistor on for a fixed time with 1.0 V < VSP ≤ 2.1 V. *: The maximum ON duty is Ton = 95% (typ.) when VSP = 5.4 V (typ.). Example: If fosc = 5 MHz, then ON time = 48 μs (typ.) (fc = 19.8 kHz) If fosc = 4 MHz, then ON time = 60 μs (typ.) (fc = 15.9 kHz) 3. Function to Stabilize the Bootstrap Voltage The product is equipped with a bootstrap capacitor charging function that supports the output level of the bootstrap method. (1) If the VSP input voltage is 1.0 V < VSP ≤ 2.1 V, the ON signal based on the carrier cycle is output to the lower phase (UL, VL, WL) and the OFF signal (Low) is output to the upper phase (UH, VH, WH). T on = 18/fosc Example: fosc = 5 MHz Ton = 3.6 μs (1) (2) (3) *95% (typ.) 2.1 V 1.0 V 5.4 V VSP PWM ON duty (upper) Magnified view Upper (UH, VH, WH) Lower (UL, VL, WL) Output Waveform Ton UH UL
(2) If the VSP input voltage is 2.1 V < VSP and the Hall signal is 5 Hz or less, the upper phase (UH, VH, WH) will perform 120° energization at a PWM that complies with the VSP; and the lower phase (UL, VL, WL) will operate at 120° energization, and performing refresh operation based on the OFF timing. (The same drive is executed during reverse rotation as well.) TSP: Variable depending on the VSP (the figure above being applicable when VSP = 5.4 V (typ.)); Ton = 18/fosc; Td = 18/fosc *: The lead angle correction (LA pin) function does not operate when the Hall signal is 5 Hz or less. The lead angle correction function also does not operate when in a reverse detection state. 4. Correcting the Lead Angle The lead angle can be corrected in the turn-on signal range from 0 to 28° in relation to the induced voltage. Analog input from the LA pin (0 V to 4.3 V divided by 16):
0 V = 0°
4.3 V or higher = 28°
Steps LA (V) Lead Angle (°) 1 0.00 0.00 2 0.05 1.93 3 0.28 3.79 4 0.59 5.65 5 0.89 7.54 6 1.21 9.43 7 1.52 11.29 8 1.83 13.15 9 2.14 15.08 10 2.45 16.87 11 2.75 18.73 12 3.06 20.66 13 3.37 22.55 14 3.68 24.37 15 3.99 26.16 16 4.30 28.09 Magnified view UH UL VH VL WH WL Example Output Waveform Ton Td WH WL Td TSP 0.0 LA (V) LA (V) − Lead Angle (°) Characteristic Phase (°)
- Setting the Carrier Frequency This function involves setting the triangular wave frequency (carrier frequency) necessary for generating PWM signals. Carrier frequency: fc = fosc/252 (Hz) f osc = reference clock (CR oscillatory frequency) Example: If fosc = 5 MHz, then fc = 19.8 kHz If fosc = 4 MHz, then fc = 15.9 kHz 6. Position Detection Pin 7. Pulses-Per Revolution Output The number of pulses to be generated from the FG output is selectable from one or three pulses per electrical degree via the FGC input. When one pulse per electrical degree is selected, pulses are generated from the U-phase Hall signal. When three pulses per electrical degree is selected, pulses are generated by combining the rising edges of the U-, V- and W-phase Hall signals. FGC FG High One pulse/electrical angle Low or open Three pulses/electrical angle FG Signal Timing Chart HWM HVP HWP HUP HVM HUM FGC = Low FGC = High VH HUM HUP Higher than VS = 40 mV VS VH = 7.5 mV (typ.) VH
- Protecting Input Pin (1) Overcurrent protection (RS Pin) If the current converted a voltage into exceeds the internal reference voltage (0.5 V (typ.)), each output (UH, VH, WH) on the high side becomes a low and each output (UL, VL, WL) on the low side outputs a drive signal in accordance with the signal from the hall elements as shown on the timing chart. Overcurrent protection is re stored for each carrier cycle. The pin is equipped with a filter (analog filter = 0.5 μs (typ.)) that prevents malfunctioning due to external noise. (2) Position detection signal error protection When the position detection signals are either all High, Low or Open, all the output is turned off (all phases Low). Anything else results in a restart. (3) Low power voltage protection (VCC power monitor) If the operation voltage range is exceeded when the power is being turned on or off, all the output is turned Low to prevent short circuit damage to the power element. Also, if 2.1 V or higher is input via the VSP pin, and if the motor is not rotating (Hall signal = 5 Hz or less), then normal drive is restored after a refresh operation (1.5 ms (typ.)) is performed. However, operations cannot be guaranteed during a power restoration as the circuitry will be unstable when the power is turned on. (4) Output pulse width restriction To prevent damage to the output driver (externally attached), the drive output signals (UH, VH, WH, UL, VL, WL) are restricted from being output at a pulse width of 0.4 μs or less. (5) Reset circuit When 2.2 V (min) or more is input to the RESET pin, a reset will be performed with all output phases the CW/CCW pin. However, do not use this method as the restoration obtained from it is unstable.
- RESET pin: Output off reset All output phases are turned Low and the externally connected power element is stopped. When 0.8 V (max) or less is input, the power is restored. During the restoration, if 2.1 V or more is not input to the VSP pin, and if the motor is not rotating (Hall signal = 5 Hz or less), a refresh operation will be performed (1.5 ms (typ.)). Then, normal drive will be restored. During the reset, the internal counter continues to operate and the FG signal continues to be output.
- CW/CCW pin: System reset All output phases are turned Low and the externally connected power element is stopped. Restoration takes place at an input of 6.35 V (typ.). However, operation after this kind of system reset is unstable. The FG signal is not output during a system reset. Low output Turn-on signal Power supply voltage 6.0 V (typ.) 5.0 V (typ.) GND Vrefout VCC Low output Output operation
Timing Chart (CW/CCW = Low, LA = GND) *: When the Hall signal is 5 Hz or higher, the lead angle function operates in accordance with the LA pin signal. HWM HVP HWP HUP HVM HUM
5 Hz < Hall
(120° energization: RESET = 6.5 V) WL FG UL VL VH WH UH WL FG UL VL VH WH UH T/4 T T = 60° (150° energization: RESET = Low) WL FG UL VL VH WH UH 0 < Hall < 5 Hz (120° energization) (The FG signal shown here is for the FGC = low) (Normal Hall input)
Timing Chart (CW/CCW = High, LA = GND) WL FG UL VL VH WH UH HWM HVP HWP HUP HVM HUM (Normal Hall input) *: When CW/CCW = High and a normal Hall signal is input, it runs at 120° energization for a lead angle of 0° (reverse rotation). (The FG signal shown here is for the FGC = low) Reverse detection (120° energization)
Timing Chart (CW/CCW = High, LA = GND) T/4 WL FG UL VL VH WH UH HWM HVP HWP HUP HVM HUM (Reverse Hall input) T T = 60° *: When the Hall signal is 5 Hz or higher, the lead angle function operates in accordance with the LA pin signal. WL FG UL VL VH WH UH 0 < Hall < 5 Hz (120° energization) WL FG UL VL VH WH UH (120° energization: RESET = 6.5 V) (150° energization: RESET = Low) (The FG signal shown here is for the FGC = low.)
Timing Chart (CW/CCW = Low, LA = GND) WL FG UL VL VH WH UH HWM HVP HWP HUP HVM HUM (Reverse Hall input) Reverse detection (120° energization) *: When CW/CCW = Low and a reverse Hall signal is input, the motor runs at 120° energization for a lead angle of 0° (reverse rotation) (The FG signal shown here is for the FGC = low.)
Application Circuit Example Utmost care is required in the design of the output, VCC, and GND lines since the IC may shatter or explode due to short-circuits between outputs, short to VCC or short to ground. The IC may also shatter or explode when it is installed in a wrong orientation. In the block diagram, part of the functional blocks or constants may be omitted or simplified for explanatory purposes. VCC 5-V regulator (internal reference voltage) Low-voltage protection circuit 150° energization matrix 0.5 V GND LA Lead angle setting circuit Output control Driver MCU VCC = 6.5 to 16.5 V Vrefout Vrefout Hall element 390 pF 9.1 k Ω Vrefout Motor power supply 0.1 μF Vrefout FGC Vrefout
Weight: 0.36 g (typ.)
- Block Diagrams Some of the functional blocks, circuits, or constants in the block diagram may be omitted or simplified for explanatory purposes. 2. Equivalent Circuits The equivalent circuit diagrams may be simplified or some parts of them may be omitted for explanatory purposes. 3. Timing Charts Timing charts may be simplified for explanatory purposes. 4. Application Circuits The application circuits shown in this document are provided for reference purposes only. Thorough evaluation is required, especially at the mass production design stage. Providing these application circuit examples does not grant a license for industrial property rights. IC Usage Considerations Notes on handling of ICs (1) 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 the device breakdown, damage or deterioration, and may result injury by explosion or combustion. (2) Use an appropriate power supply fuse to ensure that a large current does not continuously flow in case of over current 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 smoke or ignition. To minimize the effects of the flow of a large current in case of breakdown, appropriate settings, such as fuse capacity, fusing time and insertion circuit location, are required. (3) 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 n ot operate, causing IC breakdown. IC breakdown may cause injury, smoke or ignition. (4) 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 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.
Points to remember on handling of ICs (1) Over current Protection Circuit Over current protection circuits (referred to as current limiter circuits) do not necessarily prot ect ICs under all circumstances. If the Over current protection circuits operate against the over current, clear the over current status immediately. Depending on the method of use and usage conditions, such as exceeding absolute maximum ratings can cause the over current protection circuit to not operate properly or IC breakdown before operation. In addition, depending on the method of use and usage conditions, if over current continues to flow for a long time after operation, the IC may generate heat resulting in breakdown. (2) 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, such as exceeding absolute maximum ratings can cause the thermal shutdown circuit to not operate properly or IC breakdown before operation. (3) Heat Radiation Design In using an IC with large current flow such as power amp, regulator or driver, please design the device so that heat is appropriately radiated, not to exceed the specified junction temperature (Tj) at any time and 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, please design the device taking into considerate the effect of IC heat radiation with peripheral components. (4) Back-EMF When a motor rotates in the reverse direction, stops or slows down abruptly, a current flow back to the motor’s power supply due 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 absolute maximum ratings. To avoid this problem, take the effect of back -EMF into consideration in system design.
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