- 您现在的位置：买卖IC网 > Datasheet目录341 > MAX5077AUD+ (Maxim Integrated Products)IC DRVR FET P-P 14-TSSOP Datasheet资料下载
参数资料
| 型号： | MAX5077AUD+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/9页 |
| 文件大小： | 0K |
| 描述： | IC DRVR FET P-P 14-TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 96 |
| 配置： | 低端 |
| 输入类型： | 自振荡 |
| 电流 - 峰： | 3A |
| 配置数： | 2 |
| 输出数： | 2 |
| 电源电压： | 4.5 V ~ 15 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-TSSOP （0.173"，4.40mm 宽）裸露焊盘 |
| 供应商设备封装： | 14-TSSOP-EP |
| 包装： | 管件 |
Push-Pull FET Driver with Integrated Oscillator
and Programmable Clock Output
Applications Information
Supply Bypassing
Pay careful attention to bypassing and grounding the
MAX5077. Peak supply and output currents may exceed
3A when driving large MOSFETs. Ground shifts due to
insufficient device grounding may also disturb other cir-
cuits sharing the same ground-return path. Any series
inductance in the V CC , NDRV1, NDRV2, and/or GND
paths can cause noise due to the very high di/dt when
switching the MAX5077 with any capacitive load. Place
one or more 0.1μF ceramic capacitors in parallel as
close to the device as possible to bypass V CC to PGND.
Use a ground plane to minimize ground-return resis-
tance and inductance. Place the external MOSFETs as
close as possible to the MAX5077 to further minimize
board inductance and AC path impedance.
Power Dissipation
Power dissipation of the MAX5077 is a function of the
sum of the quiescent current and the output current
(either capacitive or resistive load). Maintain the sum of
the currents so the maximum power dissipation limit is
not exceeded. The power dissipation (P DISS ) due to the
quiescent switching supply current (I CCSW ) can be cal-
culated as:
P DISS = V CC x I CCSW
For capacitive loads, use the following equation to esti-
mate the power dissipation:
P LOAD = 2 x C LOAD x V CC 2 x f NDRV_
where C LOAD is the capacitive load at NDRV1 and
NDRV2, V CC is the supply voltage, and f NDRV_ is the
MAX5077 NDRV_ switching frequency.
Calculate the total power dissipation (P T ) as follows:
P T = P DISS + P LOAD
Layout Recommendations
The MAX5077 drivers source and sink large currents
that can create very fast rise and fall edges at the gate
of the switching MOSFETs. The high di/dt can cause
unacceptable ringing if the trace lengths and imped-
ances are not well controlled. Use the following PC
board layout guidelines when designing with the
MAX5077:
? Place one or more 0.1μF decoupling ceramic capac-
itors from V CC to PGND as close to the device as
possible. Connect V CC and all ground pins to large
copper areas. Place one bulk capacitor of 10μF on
the PC board with a low-impedance path to the V CC
input and PGND of the MAX5077.
? Two AC current loops form between the device and
the gates of the driven MOSFETs. The MOSFET looks
like a large capacitance from gate to source when the
gate pulls low. The current loop is from the MOSFET
gate to NDRV1/NDRV2 of the MAX5077, to PGND, and
to the source of the MOSFETs. When the gate of the
MOSFET is pulled high, the current is from the V CC ter-
minal of the decoupling capacitor, to V CC of the
MAX5077, to NDRV1/NDRV2, to the MOSFET gate and
source. Both charging current and discharging current
loops are important. Minimize the physical distance
and the impedance in these AC current paths.
? Keep the device as close to the MOSFET as possible.
_______________________________________________________________________________________
7
相关PDF资料 |
PDF描述 |
|---|---|
| MAX5078BATT+T | IC MOSFET DRIVER 6-TDFN |
| MAX5092EVKIT+ | KIT EVALUATION FOR MAX5092 |
| MAX620EWN | IC DVR QUAD HISIDE MOSFET 18SOIC |
| MAX626CPA+ | IC DRIVER MOSFET DUAL 8-DIP |
| MAX662EVKIT-SO | EVAL KIT FOR MAX662 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5077AUD+ | 功能描述:功率驱动器IC Push-Pull FET Driver w/Osc & Clock 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 |
| MAX5077AUD+T | 功能描述:功率驱动器IC Push-Pull FET Driver w/Osc & Clock 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 |
| MAX5077AUD-T | 功能描述:功率驱动器IC Push-Pull FET Driver w/Osc & Clock 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 |
| MAX5078 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:4A, 20ns, MOSFET Driver |
| MAX5078_12 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:4A, 20ns, MOSFET Driver |
发布紧急采购，3分钟左右您将得到回复。