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| 型号： | MCP1406T-E/SN |
| 厂商： | Microchip Technology |
| 文件页数： | 11/28页 |
| 文件大小： | 0K |
| 描述： | IC MOSFET DRIVER 6A HS 8SOIC |
| 标准包装： | 3,300 |
| 配置： | 低端 |
| 输入类型： | 反相 |
| 延迟时间： | 40ns |
| 电流 - 峰： | 6A |
| 配置数： | 1 |
| 输出数： | 1 |
| 电源电压： | 4.5 V ~ 18 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 带卷 (TR) |
| 其它名称： | MCP1406T-E/SNTR |
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MCP1406/07
4.0
4.1
APPLICATION INFORMATION
General Information
MOSFET drivers are high-speed, high current devices
V DD = 18V
which are intended to provide high peak currents to
charge the gate capacitance of external MOSFETs or
IGBTs. In high frequency switching power supplies, the
PWM controller may not have the drive capability to
directly drive the power MOSFET. A MOSFET driver
like the MCP1406/07 family can be used to provide
additional drive current capability.
4.2
MOSFET Driver Timing
The ability of a MOSFET driver to transition from a fully-
off state to a fully-on state are characterized by the driv-
ers’ rise time (t R ), fall time (t F ), and propagation delays
(t D1 and t D2 ). The MCP1406/07 family of devices is
+5V
Input
Input
MCP1407
1 μF
0.1 μF
Ceramic
Output
C L = 2500 pF
90%
able to make this transition very quickly. Figure 4-1 and
Figure 4-2 show the test circuits and timing waveforms
0V
10%
used to verify the MCP1406/07 timing.
18V
Output
t D1 90%
t R
t D2
90%
t F
V DD = 18V
0V
10%
10%
1 μF
0.1 μF
Ceramic
FIGURE 4-2:
Non-Inverting Driver Timing
Waveform.
Input
Output
C L = 2500 pF
4.3
Decoupling Capacitors
MCP1406
Careful layout and decoupling capacitors are highly
recommended when using MOSFET drivers. Large
currents are required to charge and discharge capaci-
tive loads quickly. For example, 2.25A are needed to
+5V
Input
90%
charge a 2500 pF load with 18V in 20 ns.
To operate the MOSFET driver over a wide frequency
0V
18V
10%
t D1
90%
t F
t D2
t R
90%
range with low supply impedance, a ceramic and a low
ESR film capacitor are recommended to be placed in
parallel between the driver V DD and GND. A 1.0 μF low
ESR film capacitor and a 0.1 μF ceramic capacitor
Output
placed between pins 1, 8 and 4, 5 should be used.
0V
10%
10%
These capacitors should be placed close to the driver
to minimized circuit board parasitics and provide a local
FIGURE 4-1:
Waveform.
Inverting Driver Timing
source for the required current.
? 2006-2012 Microchip Technology Inc.
DS22019B-page 11
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