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参数资料
| 型号： | L9904 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSH DC MOTOR CONTROLLER, PDSO20 |
| 封装： | SO-20 |
| 文件页数： | 4/17页 |
| 文件大小： | 279K |
| 代理商： | L9904 |
L9904
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 condi-
tion (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
L
H
L
H
braking mode
8
1
100
00
0
H
LL
H
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相关代理商/技术参数 |
参数描述 |
|---|---|
| L9904TR | 功能描述:马达/运动/点火控制器和驱动器 Motor Bridge Contlr 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 |
| L9906 | 功能描述:马达/运动/点火控制器和驱动器 3-Phase Motor Control Driver 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 |
| L9906TR | 功能描述:马达/运动/点火控制器和驱动器 3-Phase Motor Control Driver 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 |
| L9907 | 制造商:HAMAMATSU 功能描述:IR EMITTER 660NM |
| L9907N | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:MOTOR BRIDGE FOR HEADLIGHT ADJUSTMENT |
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