LM3824 National Semiconductor, LM3824 Datasheet - Page 3

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

I
I
f
e
e
I
I
D
t
V
Symbol
Symbol
Symbol
ACC
ACC
Q1
Q2
S
P
SENSE+V
n
SENSE+V
n
Unless otherwise specified, V
0.1 µF.
TH
RES
LM3824-1.0
LM3824-2.0
Common Device Parameters
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
Specifications in standard type face are for T
ranges.
Absolute Maximum Supply Voltage
Power Dissipation
ESD Susceptibility (Note 3)
Sense Current (peak, for 200 msec) (Note 4)
Sink Current for PWM pin
Maximum Junction Temperature
DD
Average Current Accuracy
(Note 7)
Effective Output Noise (rms)
DD
Average Current Accuracy
(Note 7)
Effective Output Noise (rms)
Quiescent Current
Quiescent Current
PWM Resolution
Sampling Time
Frequency of PWM Waveform
Threshold High Level for SD
= 3.6V for the following specifications. Supply bypass capacitor is 1 µF and filter capacitor is 0.1 µF.
= 3.6V for the following specifications. Supply bypass capacitor is 1 µF and filter capacitor is 0.1 µF.
Parameter
Parameter
Parameter
DD
= 3.6V for the following specifications. Supply bypass capacitor is 1 µF and filter capacitor is
1.0A current
2.0A current (Note 8)
Normal Mode, SD = high
Shutdown Mode, SD = low
Typical numbers are at 25˚C and represent the most likely parametric norm.
J
= 25˚C and those with boldface type apply over full operating temperature
(Note 1)
(Note 2)
1.5 kV
150˚C
5.5V
1mA
10A
Conditions
Conditions
Conditions
3
Operating Ratings
Storage Temperature
Lead Temperature (Soldering, 10 sec)
Input Voltage
Sense Current (continuous) (Note 4)
Junction Temperature Range
(Note 5)
(Note 5)
(Note 5)
Typ
Typ
Typ
160
1.0
2.0
1.8
0.8
1.3
12
36
95
6
(Note 1)
0.97 / 0.95
1.03 / 1.05
1.88 / 1.84
2.12 / 2.16
(Note 6)
(Note 6)
(Note 6)
Limit
Limit
Limit
150
100
250
1.8
10
10
4
−65˚C to +150˚C
−40˚C to +85˚C
2.0V to 5.25V
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ms (max)
µA (max)
µA (max)
Hz (max)
ms (min)
Hz (min)
A (max)
A (max)
A (min)
A (min)
V (min)
260˚C
Units
Units
Units
mA
mA
ms
µA
µA
Hz
%
A
A
V
5A