TB6582FG(O,EL) Toshiba, TB6582FG(O,EL) Datasheet - Page 11

• Manufacturer Part Number: TB6582FG(O,EL)
• Description: IC BRUSHLESS MOTOR CTLR 52-QFP
• Manufacturer: Toshiba
• Type: 3 Phase Full Wave Brushless Motor Controllerr

Specifications of TB6582FG(O,EL)

• Applications: DC Motor Controller, Brushless (BLDC), 3 Phase
• Number Of Outputs: 1
• Voltage - Supply: 6.5 V ~ 16.5 V
• Operating Temperature: -30°C ~ 115°C
• Mounting Type: Surface Mount
• Package / Case: 52-QFP
• Product: Fan / Motor Controllers / Drivers
• Operating Supply Voltage: 15 V
• Supply Current: 16 mA
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Voltage - Load: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: TB6582FG(O,EL); TB6582FGOELTR

(a)
(b)
The rotor is aligned to a certain position specified in DC excitation mode for the period of (a), during which
the IP pin voltage decreases from Vrefout to 0.5 V. The time constant for the period is determined by C
and R
cycle for DC excitation mode is determined according to the SC pin voltage. And after the IP pin voltage
falls to 0.5 V or lower, the duty cycle is determined according to the V
frequency exceeds the forced commutation frequency specified with the status of the
mode is switched to the sensorless square-wave mode.
DC excitation time
Duty cycle is determined by the gradient of SC terminal voltage, which depends on the charging of a
capacitor.
This voltage is clamped when the output duty cycle reaches about 35% for the de-excitation and
over-current protection.
When CW = U-phase → V-phase
When CCW = U-phase → W-phase
Ta (typ.) = 2.3 × C
Forced commutation time
The forced commutation is started when the IP pin voltage falls below to 0.5 V or lower.
The output duty cycle of forced commutation is determined by V
F
F
F
ST
ST
ST
ST
. After that, operation mode is switched to forced commutation mode (b) as shown above. The duty
Example)
= High
= Middle
= Low
When f
F
F
F
: Forced commutation frequency f
: Forced commutation frequency f
: Forced commutation frequency f
IP
ST
ST
ST
× R
= High
= Middle : f
= Low or Open : f
OSC
Design Specifications
ST
(s)
= 5 MHz,
: f
ST
ST
∼ − 6.4 (Hz)
∼ − 3.2 (Hz)
ST
∼ − 1.6 (Hz)
11
ST
ST
ST
= f
= f
= f
osc
osc
osc
/(6 × 2
/(6 × 2
/(6 × 2
SP
17
18
19
SP
)
)
)
input voltage.
pin voltage. When the rotational
Preliminary
FST
pin, the operation
TB6582FG
2007-10-18
IP