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参数资料
| 型号： | MAX4925ELT+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/7页 |
| 文件大小： | 0K |
| 描述： | IC CTLR OVP W/EXT PFET 6UDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 类型： | 过压保护控制器 |
| 应用： | 手机，数码相机，媒体播放器 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-WFDFN |
| 供应商设备封装： | 6-uDFN（1.5x1.0） |
| 包装： | 标准包装 |
| 其它名称： | MAX4925ELT+TDKR |
General Description
The MAX4923–MAX4926 overvoltage protection
(OVP) controllers protect low-voltage systems against
high-voltage faults of up to +28V with an appropriate
external pFET. When the input voltage exceeds the over-
voltage lockout (OVLO) threshold, or falls below the
undervoltage lockout (UVLO) threshold, these devices
turn off the pFET to prevent damage to protected compo-
nents and issue a flag to notify the processor of a fault
condition.
The typical overvoltage trip level is set to 7.18V
(MAX4923), 6.16V (MAX4924), 5.65V (MAX4925), and
4.46V (MAX4926). The undervoltage trip level is set to
2.44V (typ) for all devices.
The input (IN) is ESD protected to ±15kV HBM when
bypassed to ground with a 1F ceramic capacitor. All
devices are offered in a small, 6-pin (1.5mm x 1.0mm)
DFN package and are specified over the extended
-40°C to +85°C temperature range.
Applications
Cell Phones
Digital Still Cameras
PDAs and Palmtop Devices
MP3 Players
Features
o Overvoltage Protection Up to +28V
o Preset 7.18V, 6.16V, 5.65V, and 4.46V Typical
Overvoltage Trip Levels
o Preset 2.44V Typical Undervoltage Trip Level
o ±2.5% Accurate Overvoltage/Undervoltage
Trip Levels
o Low 13A (typ) Supply Current
o Drives External pFET
o 20ms Adapter Debounce Time
o Fault Flag Indicator
o 6-Pin (1.5mm x 1.0mm) DFN Package
MAX4923–MAX4926
Overvoltage Protectors with
External pFET
________________________________________________________________
Maxim Integrated Products
1
MAX4923–MAX4926
OUTPUT
VIO
GATE
FLAG
GND
IN
1
μF
4
3
1
2
INPUT
+1.8V TO 28V
P
Typical Operating Circuit
19-0810; Rev 0; 4/07
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.
Ordering Information/Selector Guide
PART
PIN-PACKAGE
OVLO (V)
UVLO (V)
TOP MARK
PKG CODE
MAX4923ELT+*
6 μDFN
7.18
2.44
LB
L611-1
MAX4924ELT+
6 μDFN
6.16
2.44
LC
L611-1
MAX4925ELT+
6 μDFN
5.65
2.44
LD
L611-1
MAX4926ELT+
6 μDFN
4.46
2.44
LE
L611-1
Note: All devices are specified over the -40°C to +85°C operating temperature range.
+
Denotes lead-free package.
*
Future Product—contact factory for availability.
Pin Configuration
12
3
65
4
N.C
GATE
N.C
IN
FLAG
GND
MA4923–MAX4926
μDFN
TOP VIEW
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4926ELT+ | 制造商:Maxim Integrated Products 功能描述:OVP PROTECTOR WITH EXTERNAL PFET - Rail/Tube 制造商:Rochester Electronics LLC 功能描述: |
| MAX4926ELT+T | 功能描述:开关变换器、稳压器与控制器 Overvoltage Protector RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| MAX4927ETN+ | 功能描述:多路器开关 IC 1000 Base-T LAN Switch RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
| MAX4927ETN+T | 功能描述:多路器开关 IC 1000 Base-T LAN Switch RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
| MAX4928AETN+ | 功能描述:多路器开关 IC DisplayPort/PCIe Passive Switch RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
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