LM3824MM-2.0 National Semiconductor, LM3824MM-2.0 Datasheet - Page 10

• Manufacturer Part Number: LM3824MM-2.0
• Description: IC CURRENT GAUGE 3% 8MSOP
• Manufacturer: National Semiconductor

Specifications of LM3824MM-2.0

• Function: Current Gauge
• Sensing Method: High-Side
• Accuracy: ±3%
• Voltage - Input: 2 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Other names: LM3824MM-2.0TR

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Look-Up Tables
The following tables show how to convert the duty cycle of
the PWM output to a current value, and vice versa. The
Sense Current
(Imax = 1.0A)
−0.05
−0.10
−0.15
−0.20
−0.25
−0.30
−0.35
−0.40
−0.45
−0.50
−0.55
−0.60
−0.65
−0.70
−0.75
−0.80
−0.85
−0.90
−0.95
0.95
0.90
0.85
0.80
0.75
0.70
0.65
0.60
0.55
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
−1
1
TABLE 1. Current to Duty Cycle Conversion Table
Sense Current
(Imax = 2.0A)
−0.10
−0.20
−0.30
−0.40
−0.50
−0.60
−0.70
−0.80
−0.90
−1.10
−1.20
−1.30
−1.40
−1.50
−1.60
−1.70
−1.80
−1.90
1.90
1.80
1.70
1.60
1.50
1.40
1.30
1.20
1.10
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
−1
−2
10
2
1
quantization error of
Please see the “PWM Output and Current Accuracy” section
for more details.
1
⁄
Duty Cycle (%)
2
bit is not shown in these tables.
95.5
93.2
90.9
88.6
86.4
84.1
81.8
79.5
77.3
75.0
72.7
70.5
68.2
65.9
63.6
61.4
59.1
56.8
54.5
52.3
47.7
45.5
43.2
40.9
38.6
36.4
34.1
31.8
29.5
27.3
22.7
20.5
18.2
15.9
13.6
11.4
9.1
6.8
4.5
50
25