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參數(shù)資料
| 型號： | L6229DTR |
| 廠商： | 意法半導體 |
| 英文描述： | DMOS DRIVER FOR THREE-PHASE BRUSHLESS DC MOTOR |
| 中文描述： | DMOS的驅動三相無刷直流電動機 |
| 文件頁數(shù)： | 12/25頁 |
| 文件大?。?/td> | 582K |
| 代理商： | L6229DTR |
L6229
12/25
Figure 13. Area where t
ON
can vary maintaining the PWM regulation.
3.4 SLOW DECAY MODE
Figure 14 shows the operation of the bridge in the Slow Decay mode during the Off Time. At any time only two
legs of the three-phase bridge are active, therefore only the two active legs of the bridge are shown in the figure
and the third leg will be off. At the start of the Off Time, the lower power MOS is switched off and the current
recirculates around the upper half of the bridge. Since the voltage across the coil is low, the current decays slow-
ly. After the Dead Time the upper power MOS is operated in the synchronous rectification mode reducing the
impendence of the freewheeling diode and the related conducting losses. When the monostable times out, up-
per MOS that was operating the synchronous mode turns off and the lower power MOS is turned on again after
some delay set by the Dead Time to prevent cross conduction.
Figure 14. Slow Decay Mode Output Stage Configurations
0.1
1
10
100
1
10
100
Coff [nF]
t
μ
s
1.5
μ
s (typ. value)
A) ON TIME
B) 1
μ
s DEAD TIME
C) SYNCHRONOUS
RECTIFICATION
D) 1
μ
s DEAD TIME
D01IN1336
相關PDF資料 |
PDF描述 |
|---|---|
| L6229N | DMOS DRIVER FOR THREE-PHASE BRUSHLESS DC MOTOR |
| L6229PD | DMOS DRIVER FOR THREE-PHASE BRUSHLESS DC MOTOR |
| L6229PDTR | DMOS DRIVER FOR THREE-PHASE BRUSHLESS DC MOTOR |
| L6232A | SPINDLE DRIVER |
| L6232B | SPINDLE DRIVER |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| L6229N | 功能描述:馬達/運動/點火控制器和驅動器 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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| L6229PD | 功能描述:馬達/運動/點火控制器和驅動器 DMOS DRIVER 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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| L6229PDTR | 功能描述:馬達/運動/點火控制器和驅動器 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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| L6229Q | 功能描述:馬達/運動/點火控制器和驅動器 DMOS Driver for 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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| L6229QTR | 功能描述:馬達/運動/點火控制器和驅動器 DMOS driver 3-phrase 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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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