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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： | 9/14页 |
| 文件大小： | 705K |
| 代理商： | LM3812MX-1.0/NOPB |
Electrical Characteristics (Continued)
Common Device Parameters (Continued)
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
V
OH
Logic High Level for PWM
Load current = 1 mA, 2V
≤ V
DD
≤
5.25V
V
DD 0.05
V
DD 0.2
V
V (min)
V
OL
Logic Low Level for PWM
Sink current = 1 mA, 2V
≤ V
DD
≤
5.25V
0.04
V
0.2
V (max)
P
I
Insertion Loss
I
SENSE = 1A (Note 9)
0.004
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see Electrical Characteristics. The
guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed
test conditions.
Note 2: At elevated temperatures, devices must be derated based on package thermal resistance. The device in the surface-mount package must be derated at
θJA= 150C/W (typically), junction-to-ambient.
Note 3: The human body model is a 100 pF capacitor discharged through a 1.5 k
resistor into each pin.
Note 4: The absolute maximum peak and continuous currents specified are not tested. These specifications are dependent on the
θJA, which is 150C/W for the
S08 package.
Note 5: Typical numbers are at 25C and represent the most likely parametric norm. Specifications in standard type face are for TJ= 25C and those with boldface
type apply over full operating temperature ranges.
Note 6: Limits are 100% production tested at 25C. Limits over the operating temperature range are guaranteed through correlation using Statistical Quality Control
(SQC) methods. The limits are used to calculate National’s Averaging Outgoing Quality Level (AOQL).
Note 7: There is a variation in accuracy over time due to thermal effects. Please refer to the “PWM Output and Current Accuracy” section for more information.
Note 8: The PWM accuracy for LM3812-7.0 and LM3813-7.0 depends on the amount of copper area under pins 1 and 2, and the layout. Please refer to the “PWM
Output and Current Accuracy” section for more information.
Note 9: The tolerance of the internal lead frame resistor is corrected internally. The temperature coefficient of this resistor is 2600 ppm/C.
Typical Performance Characteristics
Supply bypass capacitor is 0.1 F and filter capacitor is
0.1 F.
Measured Current vs Actual Current
(LM3812-1.0 and LM3813-1.0)
Measured Current vs Actual Current
(LM3812-7.0 and LM3813-7.0)
10012215
10012224
LM3812/LM3813
www.national.com
4
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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