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參數(shù)資料
| 型號： | LM3812MX-1.0 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 電源管理 |
| 英文描述： | Precision Current Gauge IC with Ultra Low Loss Sense Element and PWM Output |
| 中文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | 0.150 INCH, PLASTIC, SOP-8 |
| 文件頁數(shù)： | 4/14頁 |
| 文件大?。?/td> | 258K |
| 代理商： | LM3812MX-1.0 |
Common Device Parameters
(Continued)
Unless otherwise specified, V
DD
= 5.0V for the following specifications. Supply bypass capacitor is 1 μF and filter capacitor is
0.1 μF.
Symbol
Parameter
Conditions
Typ
(Note 5)
V
DD
0.05
Limit
(Note 6)
Units
V
OH
Logic High Level for PWM
Load current = 1 mA, 2V
≤
V
DD
≤
5.25V
Sink current = 1 mA, 2V
≤
V
DD
≤
5.25V
V
DD
0.2
V
V (min)
V
V (max)
V
OL
Logic Low Level for PWM
0.04
0.2
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 in-
tended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see Electrical Characteristics. The guar-
anteed 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
θ
JA
= 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
θ
JA
, 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 T
J
= 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.
www.national.com
4
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM3812MX-7.0 | 功能描述:IC CURRENT GAUGE 4% 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)流/電流管理 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 功能:電流開關 檢測方法:- 精確度:±10% 輸入電壓:1.7 V ~ 5.5 V 電流 - 輸出:600mA 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-UFQFN 供應商設備封裝:10-UTQFN（1.4x1.8） 包裝:管件 |
| LM3812PM-1.0 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current-Sense Gauge |
| LM3812PM-7.0 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current-Sense Gauge |
| LM3813 | 制造商:NSC 制造商全稱: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 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:- 標準包裝:1 系列:PCI Express® (PCIe) 主要目的:接口，收發(fā)器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要屬性:- 次要屬性:- 已供物品:板 |
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