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LM3824 Datasheet(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LM3824
Description  Precision Current Gauge IC with Internal Zero Ohm Sense Element and PWM Output
PDF  12 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM3824 Datasheet(HTML) 2 Page - National Semiconductor (TI)

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Ordering Information
Order No.
*
Sense
Range
Sampling
Interval*
Sensing
Method
NS
Package
Number
Package
Type
Supplied As:
LM3824MM-1.0
±1.0A
6 ms
High-side
MUA08A
MSOP-8
Tape and Reel
(1000 units/reel)
LM3824MMX-1.0
±1.0A
6 ms
High-side
MUA08A
MSOP-8
Tape and Reel
(3500 units/reel)
LM3824MM-2.0
±2.0A
6 ms
High-side
MUA08A
MSOP-8
Tape and Reel
(1000 units/reel)
LM3824MMX-2.0
±2.0A
6 ms
High-side
MUA08A
MSOP-8
Tape and Reel
(3500 units/reel)
* Current is sampled over a fixed interval. The average current during this interval is indicated by the duty cycle of the PWM output
during next interval.
Pin Description (High-Side, LM3824)
Pin
Name
Function
1
SENSE+, V
DD
High side of internal current sense, also supply voltage.
2
GND
Supply Ground.
3
FLTR+
Filter input — provides anti-aliasing for delta sigma modulator.
4
FLTR−
Filter input.
5SD
Shutdown input. Connected to V
DD through a pull-up resistor for normal operation.
When low, the LM3824 is put into a low current mode.
6
TEST
Connect to GND for normal operation.
7
PWM
Digital output indicates the current magnitude and direction.
8
SENSE−
Low side of internal current sense.
www.national.com
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