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參數(shù)資料
| 型號： | FAN8423D |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 運動控制電子 |
| 英文描述： | 3-Phase BLDC Motor Driver(三相無刷直流電機驅動器) |
| 中文描述： | BRUSHLESS DC MOTOR CONTROLLER, 1.3 A, PDSO28 |
| 封裝： | 0.375 INCH, HEAT SINK, SSOP-28 |
| 文件頁數(shù)： | 10/18頁 |
| 文件大?。?/td> | 283K |
| 代理商： | FAN8423D |
FAN8423D (KA3023D); PRELIMINARY
10
4. TSD (THERMAL SHUTDOWN)
When the chip temperature rises up to about 175
°
C, the Q2 turns on so
that the output driver shuts down. When the chip temperature falls off to
about 150
°
C, then the Q2 turns off so that the driver is to operate nor-
mally. TSD has the temperature hysteresis of about 25
°
C.
5. ROTATIONAL DIRECTION DETECTION
1) The forward and the reverse rotations of the CD are detected by using the D-F/F and the truth table as shown above.
2) The rotational direction of the CD can be explained by the output waveform of the Hall sensors. Let the three outputs of
Hall sensors be H1, H2 and H3 respectively.
When the spindle rotates in reverse direction, the Hall sensor output waveform are shown in Fig.(a). Thus the phases are in
order H1
→
H2
→
H3 with a 120
°
phase difference.
On the other hand, if the spindle rotates in forward rotation, the phase relationship is H3
→
H2
→
H1 as shown in Fig.(b)
Gain
Controller
BIAS
Q2
20
+
-
+
-
Vcc
DIR
D-F/F
D
Q
CK
H2+
H3+
H3-
H2-
Rotation
DIR
20
Forward
Low
Reverse
High
(a) Reverse rotation
H1
H2
H3
相關PDF資料 |
PDF描述 |
|---|---|
| FAN8434 | Camcorder 3 in 1 Motor Driver |
| FAN8434X | Camcorder 3 in 1 Motor Driver |
| FAN8434X_NL | Camcorder 3 in 1 Motor Driver |
| FAN8434_NL | Camcorder 3 in 1 Motor Driver |
| FAN8460MPX | Single Phase Full Wave BLDC Motor Driver with Variable Speed Control |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| FAN8423D3 | 功能描述:馬達/運動/點火控制器和驅動器 BLDC Motor Driver 3Phase 5V Interface RoHS:否 制造商:STMicroelectronics 產(chǎn)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 |
| FAN8423D3TF | 功能描述:馬達/運動/點火控制器和驅動器 BLDC Motor Driver 3Phase 5V Interface RoHS:否 制造商:STMicroelectronics 產(chǎn)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 |
| FAN8423DTF | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DC Motor Controller/Driver |
| FAN8434 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Camcorder 3 in 1 Motor Driver |
| FAN8434_NL | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Camcorder 3 in 1 Motor Driver |
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