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參數(shù)資料
| 型號(hào)： | MPC17550EV |
| 廠商： | MOTOROLA INC |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Quad H-Bridge Micromotor Driver with DC/DC Boost Converter |
| 中文描述： | STEPPER MOTOR CONTROLLER, 2 A, PDSO36 |
| 封裝： | LEAD FREE, PLASTIC, VMFP-36 |
| 文件頁(yè)數(shù)： | 10/16頁(yè) |
| 文件大小： | 477K |
| 代理商： | MPC17550EV |
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17550
10
Go to: www.freescale.com
APPLICATIONS
Introduction
The 17550's built-in DC/DC converter must be connected to
an external inductor, rectifier, and filter capacitor. This step-up
converter generates the gate-drive voltage, V
G
, required by the
internal gate driver circuits. Although there is some latitude in
selecting the values for the external component, care must be
taken that V
G
does not exceed 14 V. Additionally, too low an
inductance will cause large instantaneous switching currents,
which may damage the device.
Important
Do not use an inductance lower than 330
μ
H.
To attain high-efficiency operation, the rectifier should be a
Schottky diode, and the filter capacitor should be of the low
ESR type. Attention should be paid to proper switch mode
power supply PCB layout practice. Some experimentation may
be required to determine optimal external component values.
The recommended starting values are L = 1.0 mH, C = 2.2
μ
F.
The DC/DC converter includes its own internal oscillator and
does not require an external clock input.
Typical Application
A typical application schematic is shown in
Figure 4
.
Figure 4. Typical 17550 Application
2.2
μ
F
L = 1.0 mH
10
μ
F
V
DD
VM
GND
PSB
OE
INAR
INAF
INBF
INBR
INCR
INCF
INDF
INDR
VG
LX
HBAF
HBAR
HBBR
HBBF
HBCF
HBCR
HBDR
HBDF
MCU
N
S
N
S
17550
V
M
= 2.5 V
V
DD
= 3.0 V
47
μ
F
F
Freescale Semiconductor, Inc.
For More Information On This Product,
n
.
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|---|---|
| MPC17550EVEL | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 17550 (4CH MTD) PB FREE 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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