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参数资料
| 型号： | MAX4944LELA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/10页 |
| 文件大小： | 0K |
| 描述： | IC CTLR OVP W/FET 6.35V 8-UDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 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： | 8-WFDFN |
| 供应商设备封装： | 8-uDFN（2x2） |
| 包装： | 带卷 (TR) |
MAX4943–MAX4946/MAX4944L/MAX4945A/MAX4945L/MAX4949
Overvoltage-Protection Controllers with
Internal FET
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
IN ............................................................................-0.3V to +30V
OUT ...............................................................-0.3V to (IN + 0.3V)
GP...........................................................................-0.3V to +12V
IN to GP ..................................................................-0.3V to +22V
ACOK .......................................................................-0.3V to +6V
Continuous Power Dissipation (TA = +70°C)
8-Pin DFN (derate 4.8mW/°C above +70°C) ..............381mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
ELECTRICAL CHARACTERISTICS
(VIN = +5V (MAX4943/MAX4944_/MAX4945_/MAX4949), VIN = +3V (MAX4946), TA = -40°C to +85°C, unless otherwise noted.
Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input Voltage Range
VIN
2.2
28.0
V
VIN = 3V (MAX4946)
50
150
Input Supply Current
IIN
VIN = 5V, all remaining parts
50
150
A
UVLO Supply Current
IUVLO
VIN = 2.2V
30
A
MAX4943/MAX4944/
MAX4944B/MAX4945/
MAX4945A/ MAX4945B
3.90
4.15
4.40
IN Undervoltage Lockout
VUVLO
(VIN falling)
MAX4944L/MAX4945L/
MAX4946/MAX4949
2.30
2.45
2.60
V
IN Undervoltage-Lockout
Hysteresis
1%
MAX4943
7.00
7.4
7.80
MAX4944_
6.00
6.35
6.70
MAX4945/MAX4945B/L
5.50
5.80
6.10
MAX4945A
5.50
5.80
6.00
MAX4946
4.30
4.56
4.82
Overvoltage Trip Level
VOVLO
(VIN rising)
MAX4949
8.20
8.90
9.60
V
IN Overvoltage Hysteresis
1%
VIN = 3V (MAX4946), IOUT = 1A
80
200
Switch On-Resistance
RON
VIN = 5V, all remaining parts, IOUT = 1A
80
200
m
Ω
TA = +25°C
1.2
1.7
4.0
MAX4943–MAX4946
TA = TMIN to TMAX
1.2
1.7
4.0
TA = +25°C
2.0
3.5
5.0
Overcurrent Protection Threshold
ILIM
MAX4949
TA = TMIN to TMAX
2.0
3.0
5.0
A
GP Clamp Voltage
IGPD
(VIN - VGP), VIN = 28V
13
16
19
V
GP Pulldown Resistor
RGPD
50
k
Ω
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相关代理商/技术参数 |
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|---|---|
| MAX4945AELA+T | 功能描述:电流和电力监控器、调节器 Overvoltage-Protect Controller RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| MAX4945BELA+T | 功能描述:电流和电力监控器、调节器 Overvoltage-Protect Controller RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| MAX4945ELA+ | 制造商:Maxim Integrated Products 功能描述:OVERVOLTAGE-PROTECTION CONTROLLERS WITH INTERNAL FET - Rail/Tube |
| MAX4945ELA+T | 功能描述:电压监测器/监控器 Overvoltage-Protect Controller RoHS:否 制造商:Texas Instruments 监测电压数:2 监测电压:Adjustable 输出类型:Open Drain 欠电压阈值: 过电压阈值: 准确性:1 % 工作电源电压:1.5 V to 6.5 V 工作电源电流:1.8 uA 最大工作温度:+ 125 C 封装 / 箱体:SON-6 安装风格:SMD/SMT |
| MAX4945LELA+T | 功能描述:电流和电力监控器、调节器 Overvoltage-Protect Controller RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
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