參數(shù)資料
型號(hào)： L6228Q
廠商： STMICROELECTRONICS
元件分類： 運(yùn)動(dòng)控制電子
英文描述： STEPPER MOTOR CONTROLLER, 2.8 A, QCC32
封裝： 5 X 5 MM, 1 MM HEIGHT, 0.50 MM PITCH, ROHS COMPLIANT, VFQFPN-32
文件頁數(shù)： 6/32頁
文件大?。?/td> 491K
代理商： L6228Q
Circuit description
L6228Q
14/32
Doc ID 14321 Rev 4
Figure 13.
Output current regulation waveforms
Figure 14 shows the magnitude of the Off Time tOFF versus COFF and ROFF values. It can be
approximately calculated from the equations:
tRCFALL = 0.6 ROFF COFF
tOFF = tRCFALL + tDT = 0.6 ROFF COFF + tDT
where ROFF and COFF are the external component values and tDT is the internally generated
Dead Time with:
20 k
Ω ≤ R
OFF ≤ 100 kΩ
0.47 nF
≤ C
OFF ≤ 100 nF
tDT = 1 s (typical value)
Therefore:
tOFF(MIN) = 6.6 s
tOFF(MAX) = 6 ms
These values allow a sufficient range of tOFF to implement the drive circuit for most motors.
The capacitor value chosen for COFF also affects the Rise Time tRCRISE of the voltage at the
pin RCOFF. The Rise Time tRCRISE will only be an issue if the capacitor is not completely
charged before the next time the monostable is triggered. Therefore, the on time tON, which
depends by motors and supply parameters, has to be bigger than tRCRISE for allowing a
good current regulation by the PWM stage. Furthermore, the on time tON can not be smaller
than the minimum on time tON(MIN).
OFF
BC
DD
A
tON
tOFF
BC
ON
2.5V
0
Fast Deca
y
Fast Deca
y
Slow Decay
1
μs tBLANK
tRCRISE
1
μs tDT
1
μs tDT
tRCRISE
tRCFALL
SYNCHRONOUS OR QUASI
SYNCHRONOUS RECTIFICATION
1
μs tBLANK
5V
VRC
VSENSE
VREF
IOUT
VREF
RSENSE
D01IN1334
相關(guān)PDF資料
PDF描述
L6228QTR STEPPER MOTOR CONTROLLER, QCC32
L6229D BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, PDSO24
L6229N BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, PDIP24
L6229PDTR BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, PDSO36
L6235D013TR BRUSHLESS DC MOTOR CONTROLLER, 5.6 A, PDSO24
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6228Q_10 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DMOS driver for bipolar stepper motor
L6228QTR 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 DMOS Dual Full Bridge w/ PWM 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(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
L6229 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DMOS DRIVER FOR THREE-PHASE BRUSHLESS DC MOTOR
L6229D 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 3-Phase DC Motor 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(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
L6229DP 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 3-Phase DC Motor 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(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*