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參數(shù)資料
| 型號(hào)： | L6219DS |
| 廠商： | Allegro MicroSystems, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | DUAL FULL-BRIDGE PWM MOTOR DRIVER |
| 中文描述： | 雙全橋PWM電機(jī)驅(qū)動(dòng) |
| 文件頁數(shù)： | 6/10頁 |
| 文件大?。?/td> | 115K |
| 代理商： | L6219DS |
L6219R
6/10
Figure 2. Principle Operating Sequence
The source transistors are used to switch the power supplied to the motor winding, thus driving a constant cur-
rent through the winding.It should be noted however, that is not permitted to short circuit the outputs.
Internal circuitry is added in order to increase the accuracy of the motor current particularly with low current lev-
els.
V
S
, V
SS
, V
Ref
The circuit will stand any order of turn-on or turn-off the supply voltages V
S
and V
SS
. Normal dV/dt values are
then assumed.
Preferably, V
Ref
should be tracking V
SS
during power-on and power-off if V
S
is established.
APPLICATION INFORMATIONS
(Note 1)
Some stepper motors are not designed for contin-uous operation at maximum current. As the circuit drives a
constant current through the motor, its temperature might increase exceedingly both at low and high speed op-
eration.Also, some stepper motors have such high core losses that they are not suited for switch mode current
regulation.
Unused inputs should be connected to proper voltage levels in order to get the highest noise immunity.
As the circuit operates with switch mode current regulation, interference generation problems might arise in
some applications. A good measure might then be to decouple the circuit with a 100nF capacitor, located near
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| L6219DS013TR | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Dual Stepper Motor 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 |
| L6219DS013TRE | 制造商:STMicroelectronics 功能描述: |
| L6219DSA | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Dual Stepper Motor 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 |
| L6219DSA_08 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Stepper motor driver for automotive range |
| L6219DSA13TR | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Dual Stepper Motor 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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