- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383239 > L7250 (意法半導(dǎo)體) 5V & 12V SPINDLE AND VCM MOTORS DRIVER PDF資料下載
參數(shù)資料
| 型號(hào)： | L7250 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 5V & 12V SPINDLE AND VCM MOTORS DRIVER |
| 中文描述： | 5V的 |
| 文件頁數(shù)： | 11/46頁 |
| 文件大?。?/td> | 478K |
| 代理商： | L7250 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁當(dāng)前第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁
11/46
L7250
1
The serial port is a bidirectional three pin interface, using SDATA, SCLK and SEN to address and communicate
with sixteen 8 bit registers in the L7250. These registers include the status register, Spindle control registers,
VCM control registers, sinewave drive registers, and test mode register. These registers are cleared to zero at
power up.
SERIAL PORT
1.1 Default comunication modes setting (bit 7, Reg05H ) = 0
After the SEN falling edge, the internal state machine is waiting for the first SCLK falling edge. This means that
if the SCLK line starts from an high level the first falling edge, respecting the setup time Tefcf, is considered,
and is used to read the R/W bit. During a writing process the internal state machine must see 16 SCLK falling
edges to validate the operation. The write mode is started if the R/W bit is low on the first falling edge of SCLK.
The read mode is started if the R/W bit is high on the first falling edge of SCLK. The ID, Address, and Data are
all then subsequently read by the L7250 on the falling edges of SCLK. (See Figure 1)
The microcontroller has to read the data on the falling edge of the SCLK signal. After the hold time (Tedh) the
data line switches to the next data without a tri-state phase.During a read mode the last address bit is read by
L7250 on the eighth falling edge of SCLK. The internal state machine then turns the SDATA bit around for the
L7250 to assume control at the next SCLK rising edge (the first rising edge after the 8th SCLK falling edge).
SERIAL PORT
Voh
Logic Output voltage high
Ioh=1mA
2.7
V
Vol
Logic Output voltage low
Iol=1mA
0.5
V
Vih
Logic input high
Iih=1uA
2.2
V
Vil
Logic input low
Iil=-1uA
0.5
V
Iih
Logic high input current
Internal Pulldown Resistor
Vin = 3.3V
33
μ
A
Iil
Logic low input current
-1.00
μ
A
ELECTRICAL CHARACTERISTCS
(continued)
POWER SUPPLY [VCC5 & VCV] VCC5 = 5V ±10%, VCV = 12V ±10%. T
amb
= 25°C (unless otherwise specified)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L7805ABD2T-TR | Precision 1A regulators |
| L7805ACD2T-TR | Precision 1A regulators |
| L7806ABD2T-TR | Precision 1A regulators |
| L7806ACD2T-TR | Precision 1A regulators |
| L7808ABD2T-TR | Precision 1A regulators |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L7250E1.2 | 功能描述:電源開關(guān) IC - 配電 DSD POWER RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| L7252E2.6 | 功能描述:電源開關(guān) IC - 配電 DSD POWER RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| L725MAG | 制造商:Apex Tool Group 功能描述:TAPE, 1 IN. X 25 FT, 700 SERIES, MAGNETIC END HOOK 制造商:Lufkin 功能描述:TAPE MEASURE, MAGNETIC END HOOK 25FT 1IN; Tape Measure Type:Manual; Measuring Range Max:25ft; Blade Width:1"; Case Color:Orange; Tool Body Material:ABS; Blade Finish:Yellow Clad; Blade Length:25ft ;RoHS Compliant: NA |
| L728 | 制造商:BURNDY 功能描述:L-DIE |
| L7290 | 制造商:CIPS 功能描述:CUTTER OBLIQUE SEMI FLUSH 109MM |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。