TB6588FG Toshiba, TB6588FG Datasheet - Page 4

• Manufacturer Part Number: TB6588FG
• Description: IC PWM DRVR 3PH DC MOTOR 36HSOP
• Manufacturer: Toshiba
• Type: 3 Phase Full Wave PWM Driver for Sensorless DC Motorsr

Specifications of TB6588FG

• Applications: DC Motor Driver, Brushless (BLDC), 3 Phase
• Number Of Outputs: 1
• Current - Output: 1.5A
• Voltage - Load: 7 V ~ 42 V
• Voltage - Supply: 7 V ~ 42 V
• Operating Temperature: -30°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 36-HSOP
• Product: Fan / Motor Controllers / Drivers
• Operating Supply Voltage: 24 V
• Supply Current: 8 mA
• Mounting Style: SMD/SMT
• Function: Driver
• Vopmax (vm*): 24V (50V)
• Io (lpeak): 2.5A
• Sinusoidal Current Wave: no
• Sensor-less: yes
• Speed Feedback Loop: no
• Package: HSOP36
• Rohs Compatible†: yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Pin No.
Fin
29
30
31
32
33
34
35
36
FG_OUT
Symbol
FPWM
FST2
FST1
N.C.
VM3
LA2
LA1
Fin
I/O
⎯
⎯
⎯
O
I
I
I
Rotation speed output pin (open-drain)
This output is held low at startup and when an abnormality is detected. In sensorless mode,
pulses are generated at 3 ppr according to the back-EMF.
Note:
Forced commutation frequency select inputs (These pins have a pull-down resistor.)
Forced commutation frequency: cycles per second equivalent to an electrical degree
FST2: FST1 = H:
FST2: FST1 = H:
FST2: FST1 = L or Open: H:
FST2: FST1 = L or Open: L or Open: f
PWM frequency (f
H:
L or Open: f
Lead angle select input (These pins have a pull-up resistor.)
LA2: LA1 ∼ − H or Open : H or Open : 30° lead angleI
LA2: LA1 ∼ − H or Open : L
LA2: LA1 ∼ − L
LA2: LA1 ∼ − L
No connect
Motor power supply pin (V
IC.
Fin
This pin provides for thermal dissipation. Board traces should be designed, considering thermal
dissipation from the IC. (Since the fin and the package bottom are electrically connected, the Fin
pin should be connected to insulation or ground.)
3 ppr = 3 pulses per electrical degree (With a four-pole motor, six pulses are generated
per revolution.)
f
PWM
PWM
PWM
∼ − f
∼ − f
osc
osc
) select input (This pin has a pull-down resistor.)
/128) → f
/256) → f
: H or Open : 7.5° lead angle
: L
M
H:
L or Open: f
4
= 7 to 42 V). VM1, VM2 and VM3 are connected together inside the
PWM
PWM
: 15° lead angle
: 0° lead angle
∼ − 39 kHz @ f
∼ − 19.5 kHz @ f
f
f
ST
ST
ST
ST
Description
∼ − f
∼ − f
∼ − f
∼ − f
osc
osc
osc
osc
/(6 × 2
/(6 × 2
/(6 × 2
/(6 × 2
osc
osc
16
17
18
19
= 5 MHz
) → 12.7 Hz @ f
) → 6.4 Hz @ f
) → 3.2 Hz @ f
) → 1.6 Hz @ f
= 5 MHz
osc
osc
osc
osc
= 5 MHz
= 5 MHz
= 5 MHz
= 5 MHz
TB6588FG
2008-4-25