Step-down constant current / high-brightness LED driver chip
LJY5200
/ LED
LJY5200 PWM LED ,, LED 。 CMOS ,,,, ,RC ,,。 8VDC 100VDC LED。
LJY5200 ROSC ( 150kHz,); LED , LED LE...
Description
LJY5200
/ LED
LJY5200 PWM LED ,, LED 。 CMOS ,,,, ,RC ,,。 8VDC 100VDC LED。
LJY5200 ROSC ( 150kHz,); LED , LED LED , CS 。
LJY5200 PWMD PWM LED , LED ,,。
LJY5200 。 GATE , , LED ;, LED 。
LJY5200 (VDD ) VUVLO ,GATE , LJY5200 。, ( 210mv, PWMD ),。 , PWMD , LED 。
● 90% ● :8~100VDC ● LED ● LED ● <3A ● PWM ● ● ● ● ,, ● LED , ● ● :SOP8
● / LED ● ● ● ● LED
-1-
LJY5200
LJY5200 12-85V
8-Pin SOP-8, Pb-free
LJY5200
LJY5200
-2-
LJY5200
1 NC
2 CS
3 GND
4 GATE
5 PWMD
6 VDD
7 NC
8 ROSC
LED MOS PWM , ( 150k)
LJY5200
VDD
-0.3 8 V
VIN-DC
-0.3 VDD +0.3 V
VO
-0.3 VDD +0.3 V
150 ℃
-20 85 ℃
-40 125 ℃
( 10 )
260 ℃
(SOP-8, 85℃)
0.75 W
ESD ,
2000
V
ESD ,
150 V
:,
。
(TA=25℃,)
VINDC DC
VDD
VDD 1mA
Shutdown VDD IVDD_SD PWMD=0;VDD=7V
VDD VUVLO VDD ,Hys=0.3V
PWMD VENL VDD=6.1~7.5V;PWMD ,gate
PWMD VENH VDD=6.1~7.5V;PWMD ,gate
PWMD IEN VEN=6.8V
CS VCS TA=-45℃~85℃
GATE VGATE(hi) IOUT=10mA
GATE VGATE(lo) IOUT=-10mA
FOSC
ROSC=1Mohm
FOSC
ROSC=200kohm
duty cycle DMAX ROSC=1Mohm;cs=0, gate
VPWMD TA=-45℃~85℃;VIN=12V
CS gate TDELAY VIN=12V,VLD=0.15,VCS=0~0.22V after TBLANK
Gate TRISE CGATE=500pF
Gate TRISE CFALL=500pF
8 100 V 6.1 6.8 7.5 V
1 mA 2.2 2.5 2.7 V
0.45 V
0.38 V
0.8 189 VDD-0.3 0
1 210
30 70
1.2 231 VDD 0.3
100
uA mV V V kHz kHz %
0.5 4 V 300 ns
30 50 ns 30 50 ns
-4-
LJY5200
:、PWM 。
: PWMD 0.5 4V , 250mV。 4V 。。 PWM : PWMD H...
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