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参数资料
| 型号： | LM3822MM-2.0/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO8 |
| 封装： | MSOP-8 |
| 文件页数： | 8/13页 |
| 文件大小： | 312K |
| 代理商： | LM3822MM-2.0/NOPB |
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. (Continued)
Common Device Parameters (Continued)
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
Limit
Units
V
TL
Threshold Low Level for SD
1.2
V
0.7
V (max)
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)
0.003
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 = 220C/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 220C/W for the
MSOP-8 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
typeapply 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 Average 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: This parameter is production tested at 1A and guaranteed by design at 2A.
Note 9: The tolerance of the internal lead frame resistor is corrected internally. The temperature coefficient of this resistor is 2600 ppm/C.
LM3822
www.national.com
4
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