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参数资料
| 型号： | LM3812MX-1.0/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封装： | 0.150 INCH, PLASTIC, SOP-8 |
| 文件页数： | 8/14页 |
| 文件大小： | 705K |
| 代理商： | LM3812MX-1.0/NOPB |
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Absolute Maximum Supply Voltage
5.5V
Power Dissipation
ESD Susceptibility (Note 3)
1.5 kV
Sense Current (peak, for 200 msec) (Note 4)
10A
Sink Current for PWM pin
1mA
Voltage on Pin 5
5.25V
Maximum Junction Temperature
150C
Storage Temperature
65C to +150C
Lead Temperature (Soldering, 10 sec)
260C
Operating Ratings (Note 1)
Input Voltage
2.0V to 5.25V
Sense Current (continuous) (Note 4)
7A
Junction Temperature Range
40C to +125C
Electrical Characteristics
LM3812-1.0, LM3813-1.0
V
DD = 5.0V for the following specifications. Supply bypass capacitor is 1 F and filter capacitor is 0.1 F.
Symbol
Parameter
Conditions
Typ
Limit
Units
I
ACC
Average Current Accuracy
at 0.9A current
0.9
A
0.882 / 0.864
A (min)
0.918 / 0.936
A (max)
e
n
Effective Output Noise (rms)
2
mA
LM3812-7.0, LM3813-7.0
V
DD = 5.0V for the following specifications. Supply bypass capacitor is 1 F and filter capacitor is 0.1 F.
Symbol
Parameter
Conditions
Typ
Limit
Units
I
ACC
Average Current Accuracy
at 2.5A current (Note 8)
2.5
A
2.400 / 2.350
A (min)
2.600 / 2.650
A (max)
e
n
Effective Output Noise (rms)
20
mA
Common Device Parameters
Unless otherwise specified, V
DD = 5.0V for the following specifications. Supply bypass capacitor is 1 F and filter capacitor is
0.1 F.
Symbol
Parameter
Conditions
Typ
Limit
Units
I
Q1
Quiescent Current
Normal Mode, SD = high
100
A
160
A (max)
I
Q2
Quiescent Current
Shutdown Mode, SD = low
2.5
A
10
A (max)
D
RES
PWM Resolution
0.1
%
t
S
Sampling Time
52
ms
40
ms (min)
80
ms (max)
f
P
Frequency of PWM Waveform
20
Hz
12.5
Hz (min)
25
Hz (max)
V
TH
Threshold High Level for SD
1.2
V
1.8
V (min)
V
TL
Threshold Low Level for SD
1.3
V
0.7
V (max)
LM3812/LM3813
www.national.com
3
相关PDF资料 |
PDF描述 |
|---|---|
| LM3812MX-7.0/NOPB | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| LM3812M-7.0/NOPB | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| LM3813M-1.0/NOPB | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| LM3814MX-1.0/NOPB | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| LM3815MX-1.0/NOPB | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM3812MX-7.0 | 功能描述:IC CURRENT GAUGE 4% 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳流/电流管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 功能:电流开关 检测方法:- 精确度:±10% 输入电压:1.7 V ~ 5.5 V 电流 - 输出:600mA 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-UFQFN 供应商设备封装:10-UTQFN（1.4x1.8） 包装:管件 |
| LM3812PM-1.0 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Current-Sense Gauge |
| LM3812PM-7.0 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Current-Sense Gauge |
| LM3813 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Precision Current Gauge IC with Ultra Low Loss Sense Element and PWM Output |
| LM3813EVAL | 功能描述:EVALUATION BOARD FOR LM3813 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:PCI Express® (PCIe) 主要目的:接口，收发器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要属性:- 次要属性:- 已供物品:板 |
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