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參數資料
| 型號： | FAN8727 |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 光電元器件 |
| 英文描述： | Spindle + 4-CH Motor Drive IC |
| 中文描述： | 4 CHANNEL CD MOTOR DRIVER, PQFP52 |
| 封裝： | 14 X 14 MM, HEAT SINK, QFP-48/52 |
| 文件頁數： | 13/24頁 |
| 文件大小： | 480K |
| 代理商： | FAN8727 |
FAN8727
13
Application Information
1. Mute Function
1) Mute Control Voltage Condition
When using the mute function, the applied control voltage condition is as follows.
2) Separated Channel Mute Function
These pins are used for individual channel mute operation.
- When the mute pins (pin 37, 38 and 39) are OPEN or the voltage of the mute pins are below 0.5[V], the mute circuit is
stopped and BTL output circuits operate normally.
- When the mute pins (pin 37, 38 and 39) are above 2.5[V], the mute circuits are activated so that the BTL output circuits
will be muted.
- If the junction temperature rises above 175
°
C, then the thermal shutdown (TSD) circuit is activated and all the output
circuits (4-CH BTL Drivers and 3-phase BLDC Driver) are muted.
2. 4-CH Balanced Transformerless (Btl) Driver
- The voltage, Vbias, is the reference voltage given by the external bias voltage of pin 41.
- The input signals, Vin, through the pins (pin 22, 23, 24 and 25) are amplified 10K/Rextern times and then fed to the level
shift.
- The level shift produces the current due to the difference between the input signal (Vin) and the arbitrary reference
voltage (Vbias). The current produced as +
I and -
I are fed into the drive buffers.
- The drive buffer operates the power TR of the output stage according to the state of the input signal(Vin).
- The output stage is the BTL driver, and the motor (or actuator) is rotating in forward direction by operating TR Q1 and
TR Q4. On the other hand, if TR Q2 and TR Q3 are operating, the motor (or actuator) is rotating in reverse direction.
- When the input signal Vin, through the pin (pin 22, 23, 24 and 25) is below the Vbias, then the motor (actuator) is in
forward direction.
MUTE ON Voltage
MUTE OFF
Voltage
2.5[V] Above
OPEN or 0.5[V] Below
Mute Function Operation
Normal Operation
+
AMP1
VCC
Q1
Q2
Q3
Q4
LEVEL
SHIFT
GND
DRIVE
AMP
DRIVE
AMP
M
41
22 23
24 25
27
29
33
36
26
28
32
35
Rextern
10k
Vbias
Vin
X2
X2
相關PDF資料 |
PDF描述 |
|---|---|
| FAN8728 | Spindle + 4-CH Input PWM Motor Drive IC |
| FAN8729 | Spindle+4-CH Motor Drive IC |
| FAN8729_NL | Spindle+4-CH Motor Drive IC |
| FAN8732BG | Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)] |
| FAN8732BGX | Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)] |
相關代理商/技術參數 |
參數描述 |
|---|---|
| FAN8727_04 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Spindle + 4-CH Motor Drive IC |
| FAN8727_NL | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Spindle + 4-CH Motor Drive IC |
| FAN8728 | 功能描述:馬達/運動/點火控制器和驅動器 BLDC+ 4Ch BTL 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 |
| FAN8729 | 功能描述:馬達/運動/點火控制器和驅動器 BLDC+4CH BTL 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 |
| FAN8729_NL | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Spindle+4-CH Motor Drive IC |
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