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參數(shù)資料
| 型號： | L9947 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | QUAD HALF-BRIDGE AND SINGLE HIGH-SIDE DRIVER |
| 中文描述： | 四半橋及單高邊驅(qū)動器 |
| 文件頁數(shù)： | 9/13頁 |
| 文件大小： | 115K |
| 代理商： | L9947 |
Bus Timing
(figure4)
The bus signal must be defined t
3
= 1
μ
s before
CSN goes low. It is allowed to change the level of
R/WN during CSN = 0. The other signals could be
changed. To store a command it is mandatory to
fix the D0 - D3and MODE signals t
9
= 1
μ
s before
the positive edge of CSN.
OVERCURRENT AT OUT1 - OUT5:
The output currents of OUT1 - OUT5 are inter-
nally limited. This is realized in the followingway:
When the output current reaches a certain level
(see pag...) the Gate - Source voltage will be
clamped to a lower level. The output current is
now limited and follows the output ID, UDS char-
acteristic for this Gate - Source voltage. An inter-
nal timer starts when the output voltage drop
(Drain - Source) increasesabove 0.4V
S
.
After 100
μ
s typ. the output is switched OFF and
the corresponding overcurrent bit (OVC1 or
OVC2) will be set. The outputs can be activated
againwith the next inputdata word.
Symbol
t
1
t
2
t
3
t
4
t
5
t
6
t
7
t
8
t
9
Parameter
Min.
20
10
1
1
Typ.
Max.
90*
Unit
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
Widthof CSN Low
Widthof CSN High
Input Signals Before Negative Cdge of CSN
Input Signals After Positive Edge of CSN
Valid Diagnostic Data
Valid Diagnostic Data
Delay Time from Input to Power Output, VS = 13V
CSN = Low Duration (Pulse Length) for CLEAR of latched Data
Input Data BeforePositive Edge of CSN Which Should be Latched
10
10
300
100
1
t
1
and t
5
are derived from the internal oscillator frequency
t
7
varies with the supply voltage V
S
, relatingto the output voltage slope limitation
(*) for t
1
> 100
μ
s the latched data will be reseted due to CLEAR (status 20)
TIMING CHARACTERISTICS
Figure 4:
Bus and OutputsTiming Diagram
L9947
9/13
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L9947S | QUAD HALF-BRIDGE AND SINGLE HIGH-SIDE DRIVER |
| L9949 | DOOR ACTUATOR DRIVER |
| L9950 | DOOR ACTUATOR DRIVER |
| L9950TR | DOOR ACTUATOR DRIVER |
| L9951 | DOOR ACTUATOR DRIVER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L9947L | 制造商:STMicroelectronics 功能描述: |
| L9947S | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Quad Half 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(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| L9949 | 功能描述:功率驅(qū)動器IC Door Actuator RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| L9949TR | 功能描述:功率驅(qū)動器IC Door Actuator RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| L9950 | 功能描述:馬達/運動/點火控制器和驅(qū)動器 DOOR ACTUATOR 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(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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