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HM9802 Datasheet(PDF) 8 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

Part # HM9802
Description  80V 1A High Efficiency Buck PFM LED Constant Current Driver
PDF  13 Pages
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Manufacturer  HMSEMI [Shenzhen Huazhimei Semiconductor Co., Ltd]
Direct Link  http://www.hmsemi.com/
Logo HMSEMI - Shenzhen Huazhimei Semiconductor Co., Ltd

HM9802 Datasheet(HTML) 8 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

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80V 1A High Efficiency Buck PFM LED Constant Current Driver
HM9802
Rev 1.1
8
Table1: Figure7 Input VIN=60V/72V/80V system parameters table:
VIN=60V
VIN=72V
VIN=80V
LED
String
1W*N
FOSC
Pout
Efficiency
FOSC
Pout
Efficiency
FOSC
Pout
Efficiency
1
27.54K
1.04W
78.7%
25.41K
0.97W
78.9%
28.84K
1.14W
50.8%
2
45.90K
1.99W
87.4%
45.76K
2.02W
87.4%
46.98K
2.09W
62.2%
3
61.79K
2.94W
90.7%
61.10K
2.89W
89.2%
63.69K
3.04W
71.6%
4
74.70K
3.83W
92.4%
75.13K
3.79W
90.6%
78.04K
3.92W
76.6%
5
85.92K
4.75W
93.1%
87.70K
4.70W
91.8%
91.51K
4.85W
80.7%
6
94.64K
5.63W
93.8%
98.50K
5.61W
93.7%
103.35K
5.78W
82.9%
7
101.06K
6.48W
94.8%
107.44K
6.45W
93.2%
113.48K
6.66W
84.9%
8
105.65K
7.36W
95.1%
114.66K
7.37W
94.0%
121.91K
7.52W
86.2%
9
108.26K
8.21W
95.7%
120.15K
8.24W
94.6%
129.09K
8.39W
85.9%
10
109.06K
9.10W
96.0%
124.10K
9.13W
95.3%
134.73K
9.29W
87.9%
11
107.72K 10.01W
96.5%
126.54K 10.12W
95.6%
138.71K 10.16W
88.7%
12
104.57K 10.91W
97.2%
126.90K 10.97W
95.9%
141.32K 11.03W
90.0%
13
98.61K 11.92W
97.5%
125.62K 11.92W
96.2%
142.28K 12.00W
90.2%
14
88.21K 12.92W
97.4%
122.06K 12.94W
96.6%
141.32K 13.02W
89.8%
15
74.63K 13.87W
98.4%
116.52K 13.94W
97.2%
137.62K 13.95W
90.2%
16
46.44K 15.62W
98.6%
99.20K 15.77W
97.7%
121.04K 15.84W
92.0%
17
89.37K 16.69W
97.8%
113.56K 16.37W
92.6%
18
75.17K 17.64W
97.9%
103.65K 17.36W
93.5%
[2] Typical System Application (VIN=36V~60V)
Figure9. HM9802 System Application at VIN=36V~60V Schematic
Shenzhen H&M Semiconductor Co.Ltd
http：//www.hmsemi.com



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