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HM9803 Datasheet(PDF) 2 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

Part # HM9803
Description  80V 0.5A Switching Current Buck PFM LED Constant Current Driver
PDF  7 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

HM9803 Datasheet(HTML) 2 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

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80V 0.5A Switching Current Buck PFM LED Constant Current Driver
Rev 1.2
2
Pin Configurations
HM9803
1
3
5
2
4
VIN
NC
CSP
VDD
SW
6
7
8
VIN
CSN
CSN
Figure2. Pin Configuration of HM9803 (Top View)
Table 1 Pin Description
Pin Number
Pin Name
Description
1
NC
No Connected.
2
VDD
The chip supply voltage.
3
CSP
Current Sense Positive Terminal.
4
SW
Output Switching Pin
5, 6
VIN
Input high voltage Pin. (Operation voltage 24V~ 80V)
7, 8
CSN
Current Sense Negative Terminal.
Function Block
Figure3. Function Block Diagram of HM9803
Shenzhen H&M Semiconductor Co.Ltd
http：//www.hmsemi.com



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