TB6571FG(O,EL) Toshiba, TB6571FG(O,EL) Datasheet - Page 15

• Manufacturer Part Number: TB6571FG(O,EL)
• Description: IC DC MOTOR CTRLR BRUSHLSS 52QFP
• Manufacturer: Toshiba

Specifications of TB6571FG(O,EL)

• Applications: DC Motor Controller, Brushless (BLDC), 3 Phase
• Number Of Outputs: 1
• Voltage - Supply: 10 V ~ 28 V
• Operating Temperature: -30°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 52-QFP
• 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: TB6571FGTR

(Note)
Hall amplifier
Ready circuit
• When the system clock is saturated, a READY signal may remain being L output even if external clock
• The Hall amplifier accepts Hall device output signals. If input signals contain noise, connect a capacitor
• The common-mode input voltage range is: VCMRH = 1.5 to 3.5 V.
• The Hall amplifier converts Hall device signals into square waves, which then enter the internal logic.
• If positive/negative inputs are open, all external MOS FETs is turned off.
• The Ready circuit indicates the motor rotation speed state using two states (L and HZ) of an open-collector
• Connect a pull-up resistor to the Ready output pin. Determine the resistance considering the following
frequency and FG frequency shift. Please confirm optimization of a VCO system PLL circuit
constant(25pin,22pin).
between inputs.
The Hall amplifier has an input hysteresis of ±8 mV(typ).
output.
When the motor is rotating, the circuit counts FG signals and outputs the following states according to
whether the frequency is within or outside ±6% of the specified value:
characteristics. The input current is 2 mA (max).
• Within ±6% of motor rotation speed: L output
• Outside ±6% of motor rotation speed: HZ (high impedance)
VCER = 0.5 V (max) at IR = 2 mA
HA
+
V
CC
V
DD
V
CC
15
V
ref
Ready
V
CC
HA
−
TB6571FG
2005-04-15