Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

LM3814 Datasheet(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. LM3814
Description  Fast Current Gauge IC with Ultra Low Loss Sense Element and PWM Output
Download  14 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM3814 Datasheet(HTML) 4 Page - National Semiconductor (TI)

  LM3814_05 Datasheet HTML 1Page - National Semiconductor (TI) LM3814_05 Datasheet HTML 2Page - National Semiconductor (TI) LM3814_05 Datasheet HTML 3Page - National Semiconductor (TI) LM3814_05 Datasheet HTML 4Page - National Semiconductor (TI) LM3814_05 Datasheet HTML 5Page - National Semiconductor (TI) LM3814_05 Datasheet HTML 6Page - National Semiconductor (TI) LM3814_05 Datasheet HTML 7Page - National Semiconductor (TI) LM3814_05 Datasheet HTML 8Page - National Semiconductor (TI) LM3814_05 Datasheet HTML 9Page - National Semiconductor (TI) Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 14 page
background image
Electrical Characteristics (Continued)
Common Device Parameters (Continued)
Unless otherwise specified, V
DD = 5.0V for the following specifications. Supply bypass capacitor is 1µF and filter capacitor is
0.1µF.
Symbol
Parameter
Conditions
Typ
(Note 5)
Limit
(Note 6)
Units
V
OL
Logic Low Level for PWM
Sink current = 1mA, 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= 150˚C/W (typically), junction-to-ambient.
Note 3: The human body model is a 100 pF capacitor discharged through a 1.5 k
Ω 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 150˚C/W for the
S08 package.
Note 5: Typical numbers are at 25˚C and represent the most likely parametric norm. Specifications in standard type face are for TJ= 25˚C and those with boldface
type apply over full operating temperature ranges.
Note 6: Limits are 100% production tested at 25˚C. 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 LM3814-7.0 and LM3815-7.0 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 0.1µF and filter capacitor is
0.1µF.
Measured Current vs Actual Current
(LM3814-1.0 and LM3815-1.0)
Measured Current vs Actual Current
(LM3814-7.0 and LM3815-7.0)
10101315
10101324
www.national.com
4


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14 


Datasheet Download

Go To PDF Page

Related Electronics Part Number

Part No.DescriptionHtml ViewManufacturer
74LCX162541 Low voltage CMOS 16-bit bus buffer with 5V tolerant inputs and outputs 1  2  3  4  5  More STMicroelectronics
TA48LS00F 300 mA Output Current Variable Output Voltage and Low Dropout Voltage Regulator with ON/OFF Control Switch 1  2  3  4  5  More Toshiba Semiconductor
TA48LS015F 300 mA Output Current and Low Dropout Voltage Regulator with ON/OFF Control Switch 1  2  3  4  5  More Toshiba Semiconductor
TA48S00AF 1A Output Current Variable Output Voltage and Low Dropout Voltage Regulator with ON/OFF Control Switch 1  2  3  4  5  More Toshiba Semiconductor
TA48S015AF 1A Output Current and Low Dropout Voltage Regulator with ON/OFF Control Switch 1  2  3  4  5  More Toshiba Semiconductor
RT9232 PROGRAMMABLE SYNCHRONOUS PWM BUCK CONVERTER WITH 1.5V/2.5V DUAL LOW DROPOUT LINEAR REGULATOR CONTROLLER AND REFERENCE OUTPUT 1  2  3  4  5  More Richtek Technology Corporation
TA48S018F 1-A Output Current and Low Dropout Voltage Regulator with ON/OFF Control Switch 1  2  3  4  5  More Toshiba Semiconductor
TA58MS05F 500 mA Output Current and Low Dropout Voltage Regulator with ON/OFF Control Switch 1  2  3  4  5  More Toshiba Semiconductor
SC4911 Bias/Primary Side PWM Controller with Ultra Low Start-up Current 1  2  3  4  5  More Semtech Corporation
ISL6334 VR11.1 4-Phase PWM Controller with Light Load Efficiency Enhancement and Load Current Monitoring 1  2  3  4  5  More Intersil Corporation

Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn