參數(shù)資料
型號(hào): MPC17517DTB
廠商: 飛思卡爾半導(dǎo)體(中國(guó))有限公司
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: 1.0 A 6.8 V Dual Motor Driver IC
中文描述: 1.0 6.8 V雙馬達(dá)驅(qū)動(dòng)IC
文件頁數(shù): 10/12頁
文件大小: 489K
代理商: MPC17517DTB
17517
10
Go to: www.freescale.com
APPLICATIONS
Typical Application
Figure 5
shows a typical application for the 17517. When
applying the gate voltage to the C
RES
terminal from an external
source, be sure to connect it via a resistor equal to, or greater
than, R
G
=
V
C
RES
/0.02
.
Figure 5. 17517 Typical Application Diagram
CEMF Snubbing Techniques
Care must be taken to protect the IC from potentially
damaging CEMF spikes induced when commutating currents in
inductive loads. Typical practice is to provide snubbing of
voltage transients by placing a capacitor or zener at the supply
terminal (VM) (see
Figure 6
).
Figure 6. CEMF Snubbing Techniques
PCB Layout
When designing the printed circuit board (pcb), connect
sufficient capacitance between power supply and ground
terminals to ensure proper filtering from transients. For all high-
current paths, use wide copper traces and shortest possible
distances.
MCU
17517
5.0 V
GND
C1L
C1H
C2L
C2H
C
RES
EN1
EN2
IN1
IN1
VM
V
DD
OUTB
OUTC
V
C
RES
< 14 V
0.01
μ
F
OUTA
NC
NC
NC
NC
R
G
>
V
C
RES
/0.02
R
G
NC = No Connect
17517
5.0 V
5.0 V
GND
C1L
C1H
C2L
C2H
C
RES
VM
V
DD
OUT
OUT
17517
5.0 V
5.0 V
GND
C1L
C1H
C2L
C2H
C
RES
VM
V
DD
OUT
OUT
F
Freescale Semiconductor, Inc.
For More Information On This Product,
n
.
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