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PDF TB6585FTG Data sheet ( Hoja de datos )

Número de pieza TB6585FTG
Descripción Bi-CMOS Integrated Circuit Silicon Monolithic
Fabricantes Toshiba 
Logotipo Toshiba Logotipo



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TB6585FG/FTG
TOSHIBA Bi-CMOS Integrated Circuit Silicon Monolithic
TB6585FG, TB6585FTG
3-Phase Sine-Wave PWM Driver for BLDC Motors
Features
Sine-wave PWM drive
Triangular-wave generator
Hall amplifier
Lead angle control
Current limit control input (VRS = 0.5 V (typ.))
Rotation pulse output (3 pulse/electrical degree 360°)
Operating supply voltage range: VM = 4.5 to 42 V
Reference supply output: Vrefout = 4.4 V (typ.), 20 mA (max)
Output current: IOUT = 1.8 A (max), 1.2 A (typ.) (FG type)
IOUT = 1.0 A (max), 0.8 A (typ.) (FTG type)
Output On-resistance: Ron (P-channel and N-channel sum) =
0.7 (typ.)
TB6585FG
TB6585FTG
The following conditions apply to solderability:
About solderability, following conditions were confirmed
(1)Use of Sn-37Pb solder Bath
·solder bath temperature: 230
·dipping time: 5 seconds
·the number of times: once
·use of R-type flux
(2)Use of Sn-3.0Ag-0.5Cu solder Bath
·solder bath temperature: 245
·dipping time: 5 seconds
·the number of times: once
·use of R-type flux
Weight:
HSOP36-P-450-0.65: 0.79 g (typ.)
QFN48-P-0707-0.50: 0.137 g (typ.)
1 2011-09-09
Free Datasheet http://www.datasheet4u.com/

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TB6585FTG pdf
TB6585FG/FTG
I/O Equivalent Circuits
Some parts are omitted from the equivalent circuit diagrams or simplified for the sake of simplicity.
Pin Description
Symbol
I/O Signal
Position signal inputs
HUP
HUM
HVP
HVM
HWP
HWM
Analog
Hysteresis: 8 mV (typ.)
Internal Circuit Diagram
Vrefout Vrefout
Speed control input
Analog
VSP
Input range: 0 to Vrefout
Vrefout
100
Digital
Rotation direction
select input
L: Clockwise (CW)
H: Counterclockwise
(CCW)
L: 0.8 V (max)
CW/CCW H: 2.0 V (min)
Hysteresis: 200 mV (typ.)
Vrefout
100
CW/CCW
Reset input
L: Drives a motor
H: Reset
Lead angle control
input
0 V: 0°
3.0 V: 28°
(5-bit AD converter)
RESET
LA
Digital
L: 0.8 V (max)
H: 2.0 V (min)
Vrefout
Hysteresis: 200 mV (typ.)
At reset: Outputs are disabled;
internal counter keeps running.
Vrefout
When fixing the lead angle externally,
connect LL to GND and UL to Vrefout.
Also, apply a control voltage to the LA
pin.
Input range: 0 to 4.4 V (Vrefout)
When an input voltage of 3.0 V or higher
is applied, the lead angle is clipped to a
maximum of 28°.
LA
The LA pin should be left open when
using the automatic-lead-angle control.
At this time, the LA pin can be used for
determining the lead angle.
100
Reset
100
Lower limit
control input
Upper limit and
automatic-lead-
angle control
input
5 2011-09-09
Free Datasheet http://www.datasheet4u.com/

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TB6585FTG arduino
TB6585FG/FTG
Characteristics
Symbol
Test Conditions
Min Typ. Max Unit
PWM frequency
Thermal shutdown
FC (5M)
OSC/C = 150 pF OSC/R = 16 k
18 20 22 kHz
TSD
TSDhys
Thermal shutdown hysteresis
(Note) 150 165 180
15
°C
Note: Product testing before shipment is not performed.
Functional Description
1. Basic Operation
At startup, the motor is driven by a square-wave commutation signal that is generated based on the position
detection signal. When the position detection signal exceeds the rotational frequency of f = 2.5 Hz, the rotor
position is determined by the position detection signal and the modulated wave signal is generated. Then,
the sine-wave PWM signal is generated by comparing the modulated wave signal with the triangular wave
signal to start a motor in PWM drive mode.
Startup to 2.5 Hz: Square-wave drive (120° commutation) f = fosc/(212 32 6)
2.5 Hz or higher: Sine-wave PWM drive (180° commutation) f 2.5 Hz when fosc = 5 MHz
2. Speed Control Input (Vsp)
(1) Speed control input: 0 V Vsp 0.5 V
The motor-driving output is turned off. (Motor is stopped.)
(2) Speed control input: Vsp > 0.5 V
When fosc = 5 MHz, the motor is driven by a square wave until f reaches 2.5 Hz. Then, the
motor-driving signal is switched to a sine-wave signal.
PWM Duty Cycle
100%
Triangular wave (carrier)
Vrefout
(1)
0 V 0.5 V
(2)
Vrefout
Vsp
Modulated waveform
GND
Note: An amplitude of the modulated waveform becomes maximum when VSP = Vrefout. The PWM duty
cycle that is obtained with the VSP voltage of Vrefout is defined as 100%.
3. Carrier Frequency Setting
The frequency of the triangular wave (carrier frequency) required for the PWM signal generation is fixed at
the following value:
fc = fosc/252 (Hz), where fosc = Reference clock frequency (RC oscillator frequency)
Example: When fosc = 5 MHz, fc = 19.8 kHz
4. Lead Angle Correction
The lead angle of the motor driving signal generated in accordance with the induced voltage (Hall signal) is
corrected by an angle between 0 and 30°.
The lead angle control can be achieved by directly applying a voltage to the PA pin, or by using the motor
current.
11 2011-09-09
Free Datasheet http://www.datasheet4u.com/

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