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參數(shù)資料
| 型號(hào)： | L6223A |
| 文件頁(yè)數(shù)： | 15/33頁(yè) |
| 文件大?。?/td> | 1335K |
| 代理商： | L6223A |
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Dual DeviceApplication
Fig. 16 shows how to drive one unipolar stepper
motor by means of two L6223A Each device
drives one phase of the motor. This permits dou-
bling of the phase current.Since in this configura-
tion each sense resistor controls the phase cur-
rent (in Single only one sense resistor controls
the total motor current), we have: R
S
= (V
ref
/Ip)
where V
ref
is the voltage reference and Ip the
phase current in the Dual that is coincident with
the chopping current. The configurationin the fig-
ure shows the only possible way to parallel two
L6223A. The use of another configuration can
cause serious demage to the IC during the pro-
gramming. The waveforms required to drive the
motorin half/fullstep areshown in Fig. 17 and18:
as it can be seen, the two L6223A are in SIMPLI-
FIED MODE OPERATING configuration. The half
step drive can be achieved by driving the inputs
IN3 which are ENABLE inputs.
Figure17:
Inputsfor Half Step drive dual device SMO.
Figure18:
Inputsfor Full Step drive single device SMO.
Dot Matrix Printer Motor Driver
Fig. 19 shows how to drive the paper feed and
the carriage motors by means of 3 L6223A using
a very low wire number. The carriage motor is
driven by two paralleled L6223A, the paper feed
motor, which requires a lower current, uses one
L6223A. The three ICs are working in SIMPLI-
FIED MODE OPERATING. The inputs IN1-IN2,
IN3 are driven as previously seen (Single and
Dual Device configuration). The inputs IN4 and
DA/CLEV are grounded so that the ICs work in
reduced current levels. This means L6223A can
select seven current levels through programming:
four in closedloop and threein open loop. The in-
put DA/OPLO is used to load the programming
data; only the device in PROGRAMMING MODE
is programmed. The two paralleled L6223A can
deliver up to 2A/phase while the single L6223A,
1A/phase.
L6223A
15/33
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PDF描述 |
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| L6258EP | PWM CONTROLLED - HIGH CURRENT DMOS UNIVERSAL MOTOR DRIVER |
| L6258 | PWM CONTROLLED - HIGH CURRENT DMOS UNIVERSAL MOTOR DRIVER |
| L6261 | Servo/Spindle Motor Controller/Driver |
| L6372 | OCTAL INDUSTRIAL INPUT INTERFACE(253.91 k) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6225 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DMOS DUAL FULL BRIDGE DRIVER |
| L6225_03 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DMOS DUAL FULL BRIDGE DRIVER |
| L6225D | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Dual Full 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 |
| L6225DTR | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Dual Full 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 |
| L6225N | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Dual Full 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 |
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