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參數(shù)資料
| 型號： | E910.71 |
| 廠商： | ELMOS SEMICONDUCTOR AG |
| 英文描述： | Sensorless position control of DC-motors, with drivers |
| 中文描述： | 位置傳感器直流控制電動機，與司機 |
| 文件頁數(shù)： | 1/1頁 |
| 文件大小： | 97K |
| 代理商： | E910.71 |
BUS IC
DC/DC CONVERTER
MOTOR DRIVER IC
RIPPLE COUNTER
48
BLOCK DIAGRAM
Sensorless position control of DC-motors, with drivers
VBAT
μC
VDD
VS
CLK
MISO
MOSI
CS
DCO
DR
PROG
Ctrl.
Int.
supply/
charge
pump
VCP
Ripple Detection 1
Ripple Detection 2
Ripple Detection 3
MUX
6
6
6
6
6
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
M1
M4
M2
M5
M3
LP1
diag
LP2
LP3
M
M
M
M
M
FEATURES
6
Half Bridges configurable to drive
3
,
4
, or
5
DC Motors
Half Bridges not needed for Motor Control may
drive other kinds of loads
Output Current max.
400
mA per Half Bridge
Three independend Pulse Detectors and Counters
Servo Control Positioning of Actuators
Excellent Positioning Performance
SPI for communication with μC
Short Circuit Protection
Over Temperature Protection
Battery Supply and
5
V Monitor
Diagnostic Data via SPI
QFN
7
*
7 32
package
APPLICATION
Positioning of HVAC Flaps (according to
US patent
5
,
203
,
499
owned by BHTC)
DESCRIPTION
The IC features
6
configurable half bridges to drives up to
3
DC
motors simultaneously or up to
5
motors sequentially.
3
indepen-
dent pulse detection circuits convert the commutation current of
the motors into countable digital signals for positioning especial-
ly of HVAC flap actuators.
Via an SPI a μC sends motor address, direction, and pulse count
command to the device. The corresponding motor will then be
driven to the desired position, and the actual number of counts
is sent back to the μC.
Diagnostic data such as over current, over temperature, and mo-
tor stall is also transmitted via the SPI.
An open drain low side output indicates when a required motor
position is reached or diagnostic data is available.
ICs can be connected in a daisy chain.
Position control
Position control + driver
Speed control
Ripple detection
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