LM3824 National Semiconductor, LM3824 Datasheet - Page 2

• Manufacturer Part Number: LM3824
• Description: Precision Current Gauge IC with Internal Zero Ohm Sense Element and PWM Output
• Manufacturer: National Semiconductor

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