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參數資料
| 型號： | FAN8463 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Terminal Block |
| 中文描述： | 橋接單相全波直流無刷電機驅動器 |
| 文件頁數： | 7/14頁 |
| 文件大小： | 316K |
| 代理商： | FAN8463 |
7
www.fairchildsemi.com
FAN8463 Rev.
1.0.0
F
Application Information
1. BTL Single phase motor driver(OUT1, OUT2)
Using a BTL to drive a single-phase BLDC motor provides several advantages for dc fans over a H-bridge drive. A BTL drive has lin-
ear switching characteristics; hence, the BTL topology reduce commutation switching noise.
2. Locked Rotor Protection and Automatic Restart
When the rotor is locked, there is no change in input signal of hall amplifier and thus a internal T
ZERO
pulse is not observed. A capac-
itor(C
LD
) connected LD pin is continually charged by internal current source(I
LDC
) to internal threshold (V
LDCL
) resulting from no
Tzero pulse. When the voltage,V
CLD on
LD pin, reaches V
LDCL
, the speed information output (FG, 1/2FG) becomes floating high or
low. When the V
CLD
reaches upper threshold, V
LDCL
, V
CLD
starts to decrease with internal current sink(I
LDD
) to the low threshold,
VLDCP. At that time, the V
CLD
ramps up again and one of two outputs is turned on depending on locked rotor position during T
ON
.The
charging and discharging repeat until locked condition is removed, or FAN8463 is powered down. The overall time chart is shown in
figure.1. The auto- retry time(T
ON
), the motor protection time(T
OFF
), the locked rotor detection time(T
LOCK
) are proportional to exter-
nal capacitor, C
LD
and each value can be calculated as follows;
For example, C
LD
= 0.33uF, then T
ON
=0.09Sec,T
OFF
=0.6Sec,T
LOCK
=0.18Sec.
TON
CLD
--------------------------------------------------------------------------
VLDCL
ILDC
–
(
)
×
=
TOFF
CLD
--------------------------------------------------------------------------
VLDCL
ILDD
–
(
)
×
=
T
LOCK
----------------------------
×
LDC
相關PDF資料 |
PDF描述 |
|---|---|
| FAN8463MPX | BTL Single Phase Full Wave BLDC Motor Driver |
| FAN8463MTC | BTL Single Phase Full Wave BLDC Motor Driver |
| FAN8463MTCX | BTL Single Phase Full Wave BLDC Motor Driver |
| FAN8486D | 2-Phase BLDC Motor Driver |
| FAN8486DTF | DC Motor Controller/Driver |
相關代理商/技術參數 |
參數描述 |
|---|---|
| FAN8463MPX | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:BTL Single Phase Full Wave BLDC Motor Driver |
| FAN8463MTC | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:BTL Single Phase Full Wave BLDC Motor Driver |
| FAN8463MTCX | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:BTL Single Phase Full Wave BLDC Motor Driver |
| FAN8486D | 功能描述:馬達/運動/點火控制器和驅動器 BLDC Motor Driver 2 Phase 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 |
| FAN8486DTF | 功能描述:馬達/運動/點火控制器和驅動器 BLDC Motor Driver 3 Phase 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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