TB6537FG(EL) Toshiba, TB6537FG(EL) Datasheet - Page 8

• Manufacturer Part Number: TB6537FG(EL)
• Description: IC CTLR SENSORLESS 3PHASE 24SSOP
• Manufacturer: Toshiba
• Type: 3 Phase Full Wave Brushless DC Motor Controllerr

Specifications of TB6537FG(EL)

• 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: 4.5 V to 5.5 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
• Other names: TB6537FGTR

5. Positional Variation
6. Over-current protection function
in connection with the frequency of PWM signal. Be especially careful when the IC is used for high-speed
motors.
phase is turned on by the timing of the next PWM signal.
Since positional detection is performed in synchronization with PWM signal, positional variation occurs
Variation is calculated through detection at two consecutive rising edges of the PWM signal.
1/f
The active phase that controls the PWM is turned off by the rising-edge of the OC signal. The inactive
p
< Detection time variation < 2/f
Pin voltage
Positional signal
PWM signal
Reference voltage
Ideal detection timing
p
f
p
Pin voltage
: PWM frequency.
8
Actual detection timing
TB6537P/PG/F/FG
2006-3-6