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參數(shù)資料
| 型號： | LM3812M-7.0/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | 0.150 INCH, PLASTIC, SOP-8 |
| 文件頁數(shù)： | 8/14頁 |
| 文件大?。?/td> | 705K |
| 代理商： | LM3812M-7.0/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
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| LM3812MX-1.0 | 功能描述:IC CURRENT GAUGE PREC EVAL 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(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 功能:電流開關(guān) 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(yīng)商設(shè)備封裝:10-UTQFN（1.4x1.8） 包裝:管件 |
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| 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 |
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