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HVLED805 数据表(PDF) 2 Page - STMicroelectronics

部件名 HVLED805
功能描述  Off-line LED driver with primary-sensing
PDF  29 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

HVLED805 数据表(HTML) 2 Page - STMicroelectronics

  HVLED805 Datasheet HTML 1Page - STMicroelectronics HVLED805 Datasheet HTML 2Page - STMicroelectronics HVLED805 Datasheet HTML 3Page - STMicroelectronics HVLED805 Datasheet HTML 4Page - STMicroelectronics HVLED805 Datasheet HTML 5Page - STMicroelectronics HVLED805 Datasheet HTML 6Page - STMicroelectronics HVLED805 Datasheet HTML 7Page - STMicroelectronics HVLED805 Datasheet HTML 8Page - STMicroelectronics HVLED805 Datasheet HTML 9Page - STMicroelectronics Next Button
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Contents
HVLED805
2/29
Doc ID 18077 Rev 1
Contents
1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4
Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5
Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.1
Power section and gate driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.2
High voltage startup generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.3
Secondary side demagnetization detection and triggering block . . . . . . . 15
5.4
Constant voltage operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.5
Constant current operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.6
Voltage feedforward block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.7
Burst-mode operation at no load or very light load . . . . . . . . . . . . . . . . . . 22
5.8
Soft-start and starter block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.9
Hiccup mode OCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.10
Layout recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28



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