參數(shù)資料
型號(hào)： L6227Q
廠商： STMICROELECTRONICS
元件分類： 運(yùn)動(dòng)控制電子
英文描述： BRUSH DC MOTOR CONTROLLER, 2.8 A, QCC32
封裝： 5 X 5 MM, 1 MM HEIGHT, 0.50 MM PITCH, ROHS COMPLIANT, VFQFPN-32
文件頁數(shù)： 3/27頁
文件大?。?/td> 435K
代理商： L6227Q
L6227Q
Circuit description
11/27
4.2
Logic inputs
Pins IN1A, IN2B, IN1B and IN2B are TTL/CMOS and microcontroller compatible logic inputs.
The internal structure is shown in Figure 6. Typical value for turn-on and turn-off thresholds
are respectively Vthon = 1.8 V and Vthoff = 1.3 V.
Pins ENA and ENB have identical input structure with the exception that the drains of the
Overcurrent and thermal protection MOSFETs (one for the bridge A and one for the
bridge B) are also connected to these pins. Due to these connections some care needs to
be taken in driving these pins. The ENA and ENB inputs may be driven in one of two
configurations as shown in Figure 7 or Figure 8. If driven by an open drain (collector)
structure, a pull-up resistor REN and a capacitor CEN are connected as shown in Figure 7. If
the driver is a standard push-pull structure the resistor R
EN and the capacitor CEN are
connected as shown in Figure 8. The resistor R
EN should be chosen in the range from
2.2 k
to 180 k. Recommended values for R
EN and CEN are respectively 100 k and 5.6 nF.
More information on selecting the values is found in the overcurrent protection section.
Figure 6.
Logic inputs internal structure
Figure 7.
ENA and ENB pins open collector driving
Figure 8.
ENA and ENB pins push-pull driving
5V
D01IN1329
ESD
PROTECTION
5V
OPEN
COLLECTOR
OUTPUT
REN
CEN
EN
D01IN1330
ESD
PROTECTION
5V
PUSH-PULL
OUTPUT
REN
CEN
EN
D01IN1331
ESD
PROTECTION
相關(guān)PDF資料
PDF描述
L6228D STEPPER MOTOR CONTROLLER, 2.8 A, PDSO24
L6228N STEPPER MOTOR CONTROLLER, 2.8 A, PDIP24
L6229QTR BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, QCC32
L6229Q BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, QCC32
L6230PDTR BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, PDSO36
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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