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| 型号： | MAX8702ETP+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/14页 |
| 文件大小： | 0K |
| 描述： | IC DRVR MOSFET DUAL 20-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 75 |
| 配置： | 高端和低端，同步 |
| 输入类型： | PWM |
| 延迟时间： | 25ns |
| 电流 - 峰： | 1.5A |
| 配置数： | 4 |
| 输出数： | 4 |
| 电源电压： | 4.5 V ~ 28 V |
| 工作温度： | -40°C ~ 100°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-WFQFN 裸露焊盘 |
| 供应商设备封装： | 20-TQFN-EP（4x4） |
| 包装： | 管件 |
19-3357; Rev 0; 8/04
Dual-Phase MOSFET Drivers
with Temperature Sensor
General Description
The MAX8702/MAX8703 dual-phase noninverting
MOSFET drivers are designed to work with PWM con-
troller ICs, such as the MAX8705/MAX8707, in note-
book CPU core and other multiphase regulators.
Applications can either step down directly from the bat-
tery voltage to create the core voltage, or step down
from a low-voltage system supply. The single-stage con-
version method allows the highest possible efficiency,
while the 2-stage conversion at higher switching frequen-
cy provides the minimum possible physical size.
Each MOSFET driver is capable of driving 3nF capaci-
tive loads with only 19ns propagation delay and 8ns
typical rise and fall times. Larger capacitive loads are
allowable but result in longer propagation and transition
times. Adaptive dead-time control helps prevent shoot-
through currents and maximizes converter efficiency.
The MAX8702/MAX8703 feature zero-crossing com-
Features
o Dual-Phase MOSFET Driver
o 0.35 ? (typ) On-Resistance and 5A (typ)
Drive Current
o Drives Large Synchronous-Rectifier MOSFETs
o Integrated Temperature Sensor (MAX8702 Only)
Resistor Programmable
Open-Drain Driver Hot Indicator ( DRHOT )
o Adaptive Dead Time Prevents Shoot-Through
o Selectable Pulse-Skipping Mode
o 4.5V to 28V Input Voltage Range
o Thermally Enhanced Low-Profile Thin QFN Package
Ordering Information
parators on each channel. When enabled, these com-
parators permit the drivers to be used in pulse-skipping
PART
TEMP RANGE
PIN-
PACKAGE
DESCRIPTION
operation, thereby saving power at light loads. A sepa-
rate shutdown control is also included that disables all
functions, drops quiescent current to 2μA, and sets DH
low and DL high.
The MAX8702 integrates a resistor-programmable tem-
perature sensor. An open-drain output ( DRHOT ) signals
to the system when the local die temperature exceeds
MAX8702 ETP -40°C to +100°C
MAX8703 ETP -40°C to +100°C
20 Thin QFN
4mm x 4mm
20 Thin QFN
4mm x 4mm
Dual-Phase
Driver with
Temp. Sensor
Dual-Phase
Driver without
Temp. Sensor
the set temperature. The MAX8702/MAX8703 are avail-
able in a thermally-enhanced 20-pin thin QFN package.
Minimal Operating Circuit
+5V
Applications
Multiphase High-Current Power Supplies
+5V
V DD
BST1
DH1
V IN
4.5V TO 28V
2- to 4-Cell Li+ Battery to CPU Core Supplies
Notebook and Desktop Computers
Servers and Workstations
V CC
AGND
LX1
DL1
V OUT
PGND1
TSET
+5V
MAX8702
BST2
V IN
4.5V TO 28V
DRHOT
DH2
Pin Configuration appears at end of data sheet.
SHDN
SKIP
PWM1
PWM2
LX2
DL2
PGND2
V OUT
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8702ETP+ | 功能描述:功率驱动器IC Dual-Phase MOSFET Driver w/Temp Sensor 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 |
| MAX8702ETP+T | 功能描述:功率驱动器IC Dual-Phase MOSFET Driver w/Temp Sensor 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 |
| MAX8702ETP-T | 功能描述:功率驱动器IC 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 |
| MAX8703ETP | 功能描述:功率驱动器IC 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 |
| MAX8703ETP+T | 功能描述:功率驱动器IC 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 |
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