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參數(shù)資料
| 型號： | L9903 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 運動控制電子 |
| 英文描述： | BRUSH DC MOTOR CONTROLLER, PDSO20 |
| 封裝： | SO-20 |
| 文件頁數(shù)： | 4/17頁 |
| 文件大?。?/td> | 269K |
| 代理商： | L9903 |
L9903
12/17
3.4 Control inputs (EN, DIR, PWM)
The cmos level inputs drive the device as shown in fig.7 and described in the truth table.
The device is activated with enable input HIGH signal. For enable input floating (not connected) or VEN=0V the
device is in standby mode. When activating the device a wake-up time of 50s is recommended to stabilize the
internal supplies.
The DIR and PWM inputs control the driver of the external H-Bridge transistors. The motor direction can be
choosen with the DIR input, the duty cycle and frequency with the PWM input. Unconnected inputs are defined
by internal pull up resistors. During wake-up and braking and before disactivating the IC via enable both inputs
should be driven HIGH.
Table 6. Truth table:
Symbols: x Don't care
R:Resistive output
TS:Thermal shutdown
0: Logic LOW or not active
L: Output in sink condition
OV:Overvoltage
1: Logic HIGH or active
H: Output in source condition
UV:Undervoltage
T: Tristate
SC:Short Circuit
6. Only those external MOS transistors of the H-Bridge which are in short circuit condition are switched off. All others remain driven
by DIR and PWM.
7. See Application Note AN2229
3.5 Thermal shutdown
When the junction temperature exceeds TJSD all driver are switched in sink condition (L), the K- output is off and
the diagnostic DG is LOW until the junction temperature drops below TJSD - TJHYST.
3.6 Overvoltage Shutdown
When the supply voltage VVS exceeds the overvoltage threshold VVSOVH all driver are switched in sink condition
(L), the K- output is off and the diagnostic DG is LOW.
3.7 Undervoltage Shutdown
For supply voltages below the undervoltage disable threshold the gate driver remains in sink condition (L) and
the diagnostic DG is low.
Status
Control inputs
Device status
Driver stage for external
power MOS
Diagnostic
Comment
EN
DIR
PWM
TS
OV
UV
SC
GH1
GL1
GH2
GL2
DG
1
0
xxx
xx
x
R7)
R
R7)
R
T
standby mode
2
1
x
10
00
LL
L
thermal
shutdown
3
1
x
01
00
LL
L
overvoltage
4
1
x
00
10
LL
L
undervoltage
5
1
x
00
01
X6)
X6
L
short circuit 6)
6
1
000
00
0L
H
L
H
7
1
x
1
00
H
L
H
L
H
braking mode
8
1
100
00
0
H
LL
H
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|---|---|
| L9903TR | BRUSH DC MOTOR CONTROLLER, PDSO20 |
| L9911B | BRUSH DC MOTOR CONTROLLER, SFM8 |
| L9911A | BRUSH DC MOTOR CONTROLLER, SFM8 |
| L9911 | BRUSH DC MOTOR CONTROLLER, SFM8 |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| L9903TR | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Motor Bridge 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 |
| L9904 | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Motor Bridge Contlr 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 |
| L9904TR | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Motor Bridge Contlr 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 |
| L9906 | 功能描述:馬達/運動/點火控制器和驅(qū)動器 3-Phase Motor Control 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 |
| L9906TR | 功能描述:馬達/運動/點火控制器和驅(qū)動器 3-Phase Motor Control 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 |
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