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參數(shù)資料
| 型號： | BA6817 |
| 廠商： | Rohm CO.,LTD. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Fan motor driver IC |
| 中文描述： | 風扇馬達驅動IC |
| 文件頁數(shù)： | 4/7頁 |
| 文件大?。?/td> | 97K |
| 代理商： | BA6817 |
720
Motor driver ICs
BA6817F / BA6818FS
Circuit operation
The BA6817F and BA6818FS have motor lock detection
and automatic restart circuits. The timing of lock detec-
tion and automatic restart is determined by the external
capacitor connected to the LD pin. The charge time of the
external capacitor is given by :
(Typical value)
where
V
LDCL
is the LD-pin clamp voltage
V
LDCP
is the LD-pin comparator voltage
I
LDC
is the LD-pin charge current
I
LDD
is the LD-pin discharge current
C is the capacitance of the LD-pin external capacitor.
For C=0.47
μ
F, for example, the charge (output ON) and
discharge (output OFF) times are 0.24s and 1.37s, re-
spectively.
(2.45V),
(1.05V),
(2.64
μ
A),
(0.48
μ
A),
The timing chart for a motor lock occasion is shown in Fig. 1.
I
LDC
t
on
(Charge time)=
C (V
LDCL
V
LDCP
)
I
LDD
t
off
(Discharge time)=
C (V
LDCL
V
LDCP
)
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| BA6848 | 3-phase motor driver for CD-ROMs |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| BA6817F | 制造商:ROHM 制造商全稱:Rohm 功能描述:Fan motor driver IC |
| BA6818 | 制造商:ROHM 制造商全稱:Rohm 功能描述:Fan motor driver IC |
| BA6818FS | 制造商:ROHM 制造商全稱:Rohm 功能描述:2-Phase Half-Wave Pre Driver for Fan Motor |
| BA6819AF | 制造商:ROHM 制造商全稱:Rohm 功能描述:2-phase half-wave motor driver |
| BA681A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LED Display Driver |
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