QR mode precision high voltage medium power LED constant current driver
DU8671
QR LED
¾ 500VMOSFET ¾ TRUEC2 ¾ TRUEQR ¾ 3% ¾ 、 ¾ ¾ ¾ ¾ SOP8
LED T5/T8/T10… LED E14/E27/PAR30/PAR38… LED...
Description
DU8671
QR LED
¾ 500VMOSFET ¾ TRUEC2 ¾ TRUEQR ¾ 3% ¾ 、 ¾ ¾ ¾ ¾ SOP8
LED T5/T8/T10… LED E14/E27/PAR30/PAR38… LED …
DU8671 ,LED 。- TRUEC2,、 , LED。 TRUEQR,MOSFET ,EMI。 DU8671, ,、 ,。 DU8671SOP8。
ACL ACN
DB1
Ce1 R3
DRA
VCC C3
GND
OVS
Rovs
DU8671
D4 Ro
DRN DRN
CS CS
L1
Rcs
Vout+ C2
Vout-
Page 1 of 6
Duty-Cycle Semiconductor
DS _DU8671_CN_V1.4
DU8671
QR LED
SOP8
1 2 3 4
5, 6 7, 8
OVS GND VCC DRA DRN CS
MOSFET MOSFET
DU8671
SOP8
2500 /
-40℃~85℃
240mA
Page 2 of 6
Duty-Cycle Semiconductor
DS _DU8671_CN_V1.4
(1)(2)
DU8671
QR LED
DRN
5,6 MOSFET
-0.3~500
V
OVS
1
-0.3~6
V
CS 7,8
-0.3~6
V
IVCC DRA
3 VCC 4 MOSFET
10 -0.3~40
mA V
θJA --- (-) Tj ---
150 -40~150
℃/W ℃
Tstg ---
-65~150
℃
ESD
-- ()
2 kV
: (1) ,。
。,,。 (2) ,GND。
(,VCC=15V, Ta=25oC)
VCCCLAMP VCC VCCON VCCOFF VCCOVP VCC ISS IOP
IVCC<10mA VCC VCC IVCC>10mA
Fsw=100kHz
13.5 12 8.5 20 140
15 13.5
9 23 180 210
17.5 15 10.5 26 220 240
V V V V uA uA
VCS_MAX TLEB TDELAY
CS
400 450 500 mV 400 ns 100 ns
Page 3 of 6
Duty-Cycle Semiconductor
DS _DU8671_CN_V1.4
DU8671
QR LED
()
(,VCC=15V, Ta=25oC)
VREF TOFF_MAX TOFF_MIN TON_MAX MOSFET
396 400 404 mV 350 us 1 us 25 us
RDSON VDS_BD
8 500
Ω V
TSD Hy_TD
150 ℃ 30 ℃
Page 4 of 6
Duty-Cycle Semiconductor
DS _DU8671_CN_V1.4
DU8671
QR LED
DU8671 , 500V MOSFET, LED 。
,VCC ,VCC, ,VCC4.5V。DU8671 15V。200uA, ,, ,...
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