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參數(shù)資料
| 型號： | TB6549P |
| 廠商： | Toshiba Corporation |
| 英文描述： | Full-Bridge Driver IC for DC motor |
| 中文描述： | 全橋直流馬達驅動IC |
| 文件頁數(shù)： | 7/18頁 |
| 文件大?。?/td> | 295K |
| 代理商： | TB6549P |
TB6549F/P
2002-08-30
7
3. Internal Constant-Voltage (5 V) Circuit
This IC includes a 5-V power supply for control circuit.
A capacitor for prevention of oscillation should be connected to S-GND associated with the pin V
reg
.
No other loads should be connected to pin V
reg
.
This IC has a power monitoring function and turns the output OFF when V
reg
goes down to 3.0 V
(design target value) or less. With a hysteresis of 0.3 V (design target value), the output are turned ON
when V
reg
reaches 3.3 V (design target value) again .
4. Charge Pump Circuit
This IC has a charge pump circuit for driving the gate for the upper power transistor in the output
circuit. A voltage of V
CC
+
5 V (typ.) is generated by connecting an external capacitor to this IC.
It takes about 2 ms to boost V
CPA
up V
CC
+
5 V (typ.) after the switch of the input signal from the
standby pin. (while CcpA
=
0.22
μ
F, and CcpB and CcpC are connected through 0.01
μ
F).
The proper capacitance of the external capacitor varies depending on the V
CC value
. Thus, determine
the constant by referring to the following data. The value of the capacitor between CcpB and CcpC
should be such that, while the motor is being driven, the voltage on the CcpA pin will be kept constant,
typically at V
CC
+ 5 V. (If a reduced V
CC
level causes the voltage on CcpA to start to fall, please adjust
this capacitance value accordingly.)
<
External capacitor
>
V
CC
Between CcpB and CcpC
Between CcpA and GND
10 V~15 V
0.01
μ
F~0.047
μ
F
0.22
μ
F
15 V~27 V
0.01
μ
F
0.22
μ
F
Reference oscillation is performed by using the internal capacitor.
V
CC
V
reg
V
CC
CcpC
V
CC
CcpB
CcpA
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|---|---|
| TB6549PG | 功能描述:馬達/運動/點火控制器和驅動器 Bridge Driver RoHS:否 制造商:STMicroelectronics 產品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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| TB6551FG | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:3-Phase Full-Wave Sine-Wave PWM Brushless Motor Controller |
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