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參數(shù)資料
| 型號(hào)： | L7203 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | SMOOTH DRIVE SPINDLE MOTOR FOR OPTICAL DRIVE APPLICATION WITH POWER INTEGRATED |
| 中文描述： | 傳動(dòng)平穩(wěn)主軸馬達(dá)驅(qū)動(dòng)功率集成應(yīng)用光學(xué) |
| 文件頁數(shù)： | 2/13頁 |
| 文件大?。?/td> | 170K |
| 代理商： | L7203 |
SMOOTH DRIVING concept.
It is based on the idea of driving the motor wind-
ing through 3 sinusoidal voltages dephased of
120 degrees. The motor is controlled in voltage
mode, so no current control compensation net-
work is required.
Each profile is digitally described by 36 bytes
stored in a ROM memory.
These sinusoidal signals are modulated by multi-
plying each sample by a value stored in the KVAL
register. Using this kind of profiles it is possible to
obtain great advantages such as torque ripple
and acoustic noise reduction and lower EMI. An
easier track following is ensured, since vibration
are reduced.
The clock signal on the chip can be synchronized
to the external application clock signal.
An internal circuit can limit the current. The
threshold is fixed with a internal 0.2 V reference.
The device generates:
- a current generator to define output voltage
slew rate
- a 3.3 V reference to bias hall sensor.
- the HFG open drain output signal for speed
regulation.
The device includes :
- a circuit for thermal shutdown with hysteresis.
- a low voltage detector
In the STANDBY state the main functions of the
device are turned off, in order to minimize the
power consumption.
The STANDBY state of the device is imposed by:
- Thermal shutdown
- stand by signal from
μ
P
PIN CONNECTIONS
DESCRIPTION
(continued)
PRS
N.C.
N.C.
VM
U
N.C.
V
W
RF
H BIAS
ISR
V
CC
DGND
AGND
SRC
HFG
FSYS
STB
1
3
2
4
5
6
7
8
9
22
21
20
19
18
16
17
15
23
10
24
N.C.
PHS
D01IN1174
RF1
PWMIN
11
14
13
12
H+
H-
STB
PRS
VM
U
V
RF
W
RF1
H+
PHS
HBIAS
ISR
AGND
VCC
DGND
SRC
HFG
FSYS
1
3
2
4
5
6
7
8
9
18
17
16
15
14
12
13
11
19
10
20
H-
PWMIN
D98IN928A
SO20
SSO24
L7203
2/13
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PDF描述 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L7203S | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:SMOOTH DRIVE SPINDLE MOTOR FOR OPTICAL DRIVE APPLICATION WITH POWER INTEGRATED |
| L7204 | 功能描述:重負(fù)荷電源連接器 PLUG-YC-#2/0-PC RoHS:否 制造商:Hirose Connector 系列:PS2 產(chǎn)品類型:Connectors 位置/觸點(diǎn)數(shù)量: 端接類型:Crimp 觸點(diǎn)材料: 觸點(diǎn)電鍍:Gold 電壓額定值: 電流額定值:300 A 附件類型: |
| L7204A | 制造商:Agilent Technologies 功能描述:L7204A / Switch, SP4T, DC-4 GHz, unterminated, 24VDC (L-SERIES) |
| L7204B | 制造商:Agilent Technologies 功能描述:L7204B / Switch, SP4T, DC-20 GHz, unterminated, 24VDC (L-SERIES) |
| L7204C | 制造商:Agilent Technologies 功能描述:L7204C / Switch, SP4T, DC-26.5 GHz, unterminated, 24VDC (L-SERIES) |
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