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参数资料
| 型号： | LM3824 |
| 厂商： | National Semiconductor Corporation |
| 英文描述： | Precision Current Gauge IC with Internal Zero Ohm Sense Element and PWM Output |
| 中文描述： | 精密电流计IC，内部零欧姆检测元件和PWM输出 |
| 文件页数： | 6/12页 |
| 文件大小： | 265K |
| 代理商： | LM3824 |
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
(Note 2)
ESD Susceptibility (Note 3)
1.5 kV
Sense Current (peak, for 200 msec) (Note 4)
10A
Sink Current for PWM pin
1mA
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)
5A
Junction Temperature Range
40C to +85C
Electrical Characteristics 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.
LM3824-1.0
SENSE+V
DD = 3.6V for the following specifications. Supply bypass capacitor is 1 F and filter capacitor is 0.1 F.
Symbol
Parameter
Conditions
Typ
(Note 5)
Limit
(Note 6)
Units
I
ACC
Average Current Accuracy
(Note 7)
1.0A current
1.0
A
0.97 / 0.95
A (min)
1.03 / 1.05
A (max)
e
n
Effective Output Noise (rms)
12
mA
LM3824-2.0
SENSE+V
DD = 3.6V for the following specifications. Supply bypass capacitor is 1 F and filter capacitor is 0.1 F.
Symbol
Parameter
Conditions
Typ
(Note 5)
Limit
(Note 6)
Units
I
ACC
Average Current Accuracy
(Note 7)
2.0A current (Note 8)
2.0
A
1.88 / 1.84
A (min)
2.12 / 2.16
A (max)
e
n
Effective Output Noise (rms)
36
mA
Common Device Parameters
Unless otherwise specified, V
DD = 3.6V for the following specifications. Supply bypass capacitor is 1 F and filter capacitor is
0.1 F.
Symbol
Parameter
Conditions
Typ
(Note 5)
Limit
(Note 6)
Units
I
Q1
Quiescent Current
Normal Mode, SD = high
95
A
150
A (max)
I
Q2
Quiescent Current
Shutdown Mode, SD = low
1.8
A
10
A (max)
D
RES
PWM Resolution
0.8
%
t
S
Sampling Time
6
ms
4
ms (min)
10
ms (max)
f
P
Frequency of PWM Waveform
160
Hz
100
Hz (min)
250
Hz (max)
V
TH
Threshold High Level for SD
1.3
V
1.8
V (min)
LM3824
www.national.com
3
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相关代理商/技术参数 |
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|---|---|
| LM3824MM-1.0 | 制造商:Texas Instruments 功能描述:Battery Charger 8-Pin MSOP Rail 制造商:Texas Instruments 功能描述:IC CURRENT GAUGE FAST SMD MSOP8 |
| LM3824MM-1.0/NOPB | 功能描述:IC CURRENT GAUGE 3% 8MSOP RoHS:否 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 |
| LM3824MM-2.0 | 功能描述:IC CURRENT GAUGE 3% 8MSOP RoHS:否 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 |
| LM3824MM-2.0/NOPB | 制造商:Texas Instruments 功能描述:Battery Charger 8-Pin MSOP Rail |
| LM3824MMX-1.0 | 功能描述:IC CURRENT GAUGE PRECISION 8MSOP 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 |
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