LM3822MM-1.0/NOPB National Semiconductor, LM3822MM-1.0/NOPB Datasheet - Page 2
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LM3822MM-1.0/NOPB
Manufacturer Part Number
LM3822MM-1.0/NOPB
Description
IC CURRENT GAUGE PREC 8-MSOP
Manufacturer
National Semiconductor
Type
Battery Chargerr
Datasheet
1.LM3822MM-1.0NOPB.pdf
(13 pages)
Specifications of LM3822MM-1.0/NOPB
Function
Current Gauge
Sensing Method
High-Side
Accuracy
±2%
Voltage - Input
2 ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Operating Supply Voltage (min)
2V
Operating Supply Voltage (max)
5.25V
Operating Temp Range
-40C to 85C
Package Type
MSOP
Mounting
Surface Mount
Pin Count
8
Operating Temperature Classification
Industrial
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Output
-
Lead Free Status / Rohs Status
Compliant
Other names
LM3822MM-1.0
LM3822MM-1.0TR
LM3822MM-1.0TR
www.national.com
Ordering Information
Pin Description (High-Side, LM3822)
Pin
* 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.
1
2
3
4
5
6
7
8
LM3822MM-1.0
LM3822MMX-1.0
LM3822MM-2.0
LM3822MMX-2.0
Order No.
SENSE+, V
GND
FLTR+
FLTR−
SD
TEST
PWM
SENSE−
*
Name
DD
Sense
Range
±
±
±
±
1.0A
1.0A
2.0A
2.0A
Sampling
Interval*
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 LM3822 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.
50 ms
50 ms
50 ms
50 ms
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.
Function
Package
MSOP-8
MSOP-8
MSOP-8
MSOP-8
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: