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參數資料
型號: FAN8623
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 運動控制電子
英文描述: 12V Spindle Motor and Voice Coil Motor Driver(12V電源的主軸電機和語音線圈電機驅動器)
中文描述: VOICE COIL MOTOR CONTROLLER, 1.2 A, PQFP52
封裝: 14 X 14 MM, HEAT SINK, QFP-48
文件頁數: 27/35頁
文件大小: 443K
代理商: FAN8623
FAN8623; PRELIMINARY
27
Power Management Features
Low Power Interrupt:
The low power interrupt operation occurs when the power supply voltage (5V,12V) level drops below each threshold voltage.
The threshold voltage (Vth) and time delay (Tdly) may be adjustable by the external component value.
Figure 12. Power on reset block schematic
Power On Reset
The power-on reset circuit monitors the voltage level of both +5V or +12V power supplies and chip temperature (thermal shut
down). The power-on reset circuit disables the spindle, and the whole VCM circuit when the power supply voltage level drops
below the reference voltage.
Figure 13. Power on reset function
Tdly
CDLYVI
Vth
(
,
2.5V I
14
μ
A
=
,
=
)
=
10
9
40
4
VDD
VCC
R7
R8
POR
CDLY
5V SENSE
12V SENSE
R4
R5
2.5V
VDD
Q15
I = 14
μ
A
+
+
_
+
_
R4 = 7k, R5 = 11k
R7 = 25k, R8 = 9k
TSD
Vhys
T
Vth
Vbe
POR
VDD, VCC
Tdly
T
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相關代理商/技術參數
參數描述
FAN8700 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Camera Motor Drive and Control IC
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