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参数资料
| 型号： | MAX15025FATB+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 11/16页 |
| 文件大小： | 0K |
| 描述： | IC GATE DRVR 2CH 16NS 10TDFN-EP |
| 标准包装： | 2,500 |
| 配置： | 高端 |
| 输入类型： | 非反相 |
| 延迟时间： | 16ns |
| 电流 - 峰： | 2A |
| 配置数： | 2 |
| 输出数： | 2 |
| 电源电压： | 6.5 V ~ 28 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘 |
| 供应商设备封装： | 10-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
MAX15024/MAX15025
Single/Dual, 16ns, High Sink/Source
Current Gate Drivers
Power Dissipation
Power dissipation of the MAX15024/MAX15025 con-
sists of three components: the quiescent current,
capacitive charge and discharge of internal nodes, and
the output current (either capacitive or resistive load).
The sum of these components must be kept below the
maximum power-dissipation limit. The quiescent cur-
rent is 700μA typ. The current required to charge and
discharge the internal nodes is frequency dependent
(see the Typical Operating Characteristics ). The
MAX15024/MAX15025 power dissipation when driving
a ground-referenced resistive load is:
P = D x R ON(MAX) x I LOAD2
where D is the fraction of the period the MAX15024/
MAX15025s’ output pulls high, R ON(MAX) is the maxi-
mum on-resistance of the device with the output high
(p-channel), and I LOAD is the output load current of the
MAX15024/MAX15025. For capacitive loads, the power
dissipation for each driver is:
P = C LOAD x V DRV2 x FREQ
where C LOAD is the capacitive load, V DRV is the driver
supply voltage, and FREQ is the switching frequency.
Layout Information
The MAX15024/MAX15025 MOSFET drivers source and
sink large currents to create very fast rise and fall edges
at the gate of the switching MOSFET. The high di/dt can
cause unacceptable ringing if the trace lengths and
impedances are not well controlled. The following
printed-circuit board (PCB) layout guidelines are recom-
mended when designing with the MAX15024/MAX15025:
? Place one or more 1μF decoupling ceramic capaci-
tor(s) from V DRV to PGND as close to the device as
possible. At least one storage capacitor of 10μF (min)
should be located on the PCB with a low resistance
path to the V CC pin of the MAX15024/MAX15025.
? There are two AC current loops formed between the
device and the gate of the MOSFET being driven.
The MOSFET looks like a large capacitance from
gate to source when the gate is being pulled low.
The active current loop is from MOSFET gate to
OUT_ of the MAX15024/MAX15025 to PGND of the
MAX15024/MAX15025, and to the source of the
MOSFET. When the gate of the MOSFET is being
pulled high, the active current loop is from the V DD
terminal of the V DRV terminal of decoupling capaci-
tor, to the V DRV of the MAX15024/MAX15025, to the
OUT_ of the MAX15024/MAX15025, to the MOSFET
gate, to the MOSFET source, and to the negative ter-
minal of the decoupling capacitor. Both charging
current loop and discharging current loop are impor-
tant. It is important to minimize the physical distance
and the impedance in these AC current paths.
? Keep the device as close as possible to the MOSFET.
? In the multilayer PCB, the inner layers should consist
of a GND plane containing the discharging and
charging current loops.
IN+
V IH
V IL
P_OUT AND
N_OUT CONNECTED
TOGETHER
OR OUT1/OUT2
90%
10%
t D-OFF
t F
t D-ON
t R
Figure 1. Timing Diagram
Maxim Integrated
11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX15025GATB+T | 功能描述:功率驱动器IC Dual Low Side RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX15025HATB+T | 功能描述:功率驱动器IC Dual Low Side RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX15026AEUD+ | 制造商:Maxim Integrated Products 功能描述:SINGLE/DUAL, 16NS, HIGH SINK/SOURCE CURRENT GATE DRIVERS - Rail/Tube |
| MAX15026BATD+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX15026BATD+T | 功能描述:DC/DC 开关控制器 4.5-28V Synchronous Buck Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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