参数资料
型号: MPC17C724EPR2
厂商: Freescale Semiconductor
文件页数: 9/15页
文件大小: 0K
描述: IC MOTOR DVR H-BRIDGE DL 16QFN
标准包装: 1
应用: DC 电机驱动器,步进电机驱动器,H 桥式
评估套件: 可供
输出数: 1 或 2
电流 - 输出: 400mA
电压 - 负载: 2.7 V ~ 5.5 V
电源电压: 2.7 V ~ 5.5 V
工作温度: -20°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-VFQFN 裸露焊盘
供应商设备封装: 16-QFN-EP(3x3)
包装: 标准包装
其它名称: MPC17C724EPR2DKR
TYPICAL APPLICATIONS
FUNCTIONAL PIN DESCRIPTION
TYPICAL APPLICATIONS
Figure 6 shows a typical application for the 17C724.
3.0 V
17C724
VDD
VM
OUT1A
OUT1B
IN1A
IN1B
OUT2A
MCU
IN2A
IN2B
PSAVE
OUT2B
GND
Figure 6. 17C724 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 zener or capacitor at the
supply pin (VM) (see Figure 7 ).
PCB LAYOUT
When designing the printed circuit board (PCB), connect
sufficient capacitance between power supply and ground
pins to ensure proper filtering from transients. For all high-
current paths, use wide copper traces and shortest possible
distance.
3.0 V
3.0 V
3.0 V
3.0 V
APPLICATION NOTES
17C724
V DD VM
OUT
OUT
OUT
OUT
GND
17C724
V DD VM
OUT
OUT
OUT
OUT
GND
Although VM1 and VM2 are connected internally, they
must be connected externally to attain sufficient power
distribution.
Take precautions to guard against electrostatic discharge
when handling the device, especially when mounting and
demounting the device to a PCB.
Figure 7. CEMF Snubbing Techniques
17C724
Analog Integrated Circuit Device Data
Freescale Semiconductor
9
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