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UM0670 Datasheet(PDF) 8 Page - STMicroelectronics

Part # UM0670
Description  80 W offline LED driver with PFC
PDF  43 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UM0670 Datasheet(HTML) 8 Page - STMicroelectronics

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UM0670
Design concept
Doc ID 15327 Rev 2
8/43
Figure 4.
Modified buck converter with dimming design concept
GND
L6562A
COMP
CS
INV
VIN = 400 V generated by the first converter
80 W LEDs
L78L33
ICCCLK
ST7LITEU05
CLKIN
RESET AIN2
VDD
350 mA
700 mA
1 A
External module
for brightness regulation
ICC
programming
PWM signal 0% to 100%
Fixed off-time
network
STPSC806D
STF9NM50N
Additional board
GD
VCC
Vc = 16 V generated by the first converter
AM00414
NC
VSS
PWM
MULT
ZCD



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