TB6548FG Toshiba, TB6548FG Datasheet - Page 6

• Manufacturer Part Number: TB6548FG
• Description: IC CTLR SENSORLESS 3PHASE 24SSOP
• Manufacturer: Toshiba
• Type: 3 Phase Sensorless Motor Driverr

Specifications of TB6548FG

• Applications: DC Motor Controller, Brushless (BLDC), 3 Phase
• Number Of Outputs: 1
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -30°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-SSOP
• Operating Supply Voltage: 5 V
• Supply Current: 0.3 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

5. Positional Variation
Positional signal
occurs in connection with the frequency of the PWM signal. Take particular care if using the IC for
high-speed motors.
PWM signal
Output voltage
of the
TA84005F/FG
Since positional detection is performed in synchronization with the PWM signal, positional variation
Variation is calculated by detecting at two consecutive rising edges of the PWM signal.
1/f
p
< Detection time variation < 2/f
Reference voltage
Ideal detection timing
p
Pin voltage
f
p
: PWM frequency
6
Actual detection timing
TB6548F/FG
2006-03-02