- 您现在的位置：买卖IC网 > PDF目录97995 > L6228PDTR (STMICROELECTRONICS) STEPPER MOTOR CONTROLLER, 2.8 A, PDSO36 PDF资料下载
参数资料
| 型号： | L6228PDTR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 运动控制电子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 2.8 A, PDSO36 |
| 封装： | POWER, SO-36 |
| 文件页数： | 4/28页 |
| 文件大小： | 589K |
| 代理商： | L6228PDTR |
第1页第2页第3页当前第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页
L6228
12/26
Figure 11. Output Current Regulation Waveforms
Figure 12 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:
20K
≤ ROFF ≤ 100K
0.47nF
≤ COFF ≤ 100nF
tDT = 1s (typical value)
Therefore:
tOFF(MIN) = 6.6s
tOFF(MAX) = 6ms
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
s tBLANK
tRCRISE
1
s tDT
1
s tDT
tRCRISE
tRCFALL
SYNCHRONOUS OR QUASI
SYNCHRONOUS RECTIFICATION
1
s tBLANK
5V
VRC
VSENSE
VREF
IOUT
VREF
RSENSE
D01IN1334
相关PDF资料 |
PDF描述 |
|---|---|
| L6228DTR | STEPPER MOTOR CONTROLLER, 2.8 A, PDSO24 |
| L6234PD013TR | BRUSHLESS DC MOTOR CONTROLLER, 5 A, PDSO20 |
| L6237 | BRUSHLESS DC MOTOR CONTROLLER, 2 A, PQFP64 |
| L6238SQA | BRUSHLESS DC MOTOR CONTROLLER, 5 A, PQFP44 |
| L6238SQT | BRUSHLESS DC MOTOR CONTROLLER, 5 A, PQFP64 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| L6228Q | 功能描述:马达/运动/点火控制器和驱动器 DMOS Dual Full Bridge w/ PWM RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| L6228Q_10 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:DMOS driver for bipolar stepper motor |
| L6228QTR | 功能描述:马达/运动/点火控制器和驱动器 DMOS Dual Full Bridge w/ PWM RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| L6229 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:DMOS DRIVER FOR THREE-PHASE BRUSHLESS DC MOTOR |
| L6229D | 功能描述:马达/运动/点火控制器和驱动器 3-Phase DC Motor RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
发布紧急采购，3分钟左右您将得到回复。