TB6571FG(O,EL) Toshiba, TB6571FG(O,EL) Datasheet - Page 12

• 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

• The charge pump consists of MOS transistors, which enable fast switching, thus allowing control with
• The charge pump is placed in discharge mode upon stop or braking.
• Upon start, the charge pump is forcibly charged.
Charge Pump
higher resolution.
For the speed discriminator and PLL gains, the ratio of the charge/discharge current is specified using an
external resistor (PLL-Gain).
The charge/discharge current for the speed discriminator, I1, is 100 µA (typ.) and the PLL
charge/discharge current, I2, can be specified using the external PLL-Gain voltage.
Because the external capacitance becomes zero upon stop or braking, the charge-up time upon start is
constant, so that the time required for the motor to start is also stable.
CP
20
18
16
14
12
10
8
6
4
2
0
0
To control
amplifier
V
DD
I1
I1
1
Charge
signal
Discharge signal
PLL-Gain characteristics
PLL-Gain input voltage
PLL-Gain特性
ＰＬＬ-ＧＡＩＮ入力電圧
Speed discriminator
2
12
3
I2
I2
Charge
signal
Discharge signal
4
PLL
5
TB6571FG
2005-04-15