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參數(shù)資料
| 型號(hào)： | 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(dòng)器 |
| 文件頁(yè)數(shù)： | 8/13頁(yè) |
| 文件大?。?/td> | 115K |
| 代理商： | L9947 |
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DATA TRANSFER AND OUTPUTS ACTIVAT-
ING
(Figure3)
The half bridges of OUT1, OUT2 and OUT3 can
be used with OUT4 to drive three bidirectional
motors in full bridge configuration as shown in
fig.1 Only one motor can be driven in the same
time. The
μ
C writes the corresponding word
status 1 till 10 at the bus and latch it with a low
pulse in the L9947. So the motor is activated. To
stop the motor it is useful to insert a braking
phase (status 9). In the braking condition there
are all low side DMOS of the half bridges
switched-onin this case the flyback currents flows
throughthe low sideswitches instead of the intrin-
sic diodes of the half bridges. After that, the half
bridges could be switched in tristate (T). The high
side driver, OUT5 can be switched only when all
the half bridges are in tristate status10.
The
μ
C works always as master and the L9947
Power Interface as slave. That means: the
starts the communication between the Power In-
terface and itself with low transition at the CSN
line. CSN = 0, R/WN= 0 the L9947 reads the data
at the bus and execute the command as shown in
tables 1,3,4 (write mode). The high slope of the
CSN stores the last command and execute it fur-
ther. All inputs are disabled if CSN=1.
So the bus can be used for another device. With
CSN = 0 and R/WN = 1 the L9947 writes the
status of the diagnostic at the parallel bus until
CSN becomes high (table 2; status
μ
+ 15) (read
mode). The power outputs maintain the same
statusas before.
μ
C
Figure 3:
Signal sequencefor data transferto switch M1 right, read the output status, brake the motor
and activate the standbymode.
L9947
8/13
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(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)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(dòng)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(shí)間: 下降時(shí)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(dòng)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(shí)間: 下降時(shí)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(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)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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