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CS6552DEO

Huajing Microelectronics

Precision primary side feedback LED constant current drive circuit

CS6552 R ○ LED :CS6552AEO, CS6552BEO, CS6552EO, CS6552CEO, CS6552DEO 1 CS6552 AC/DC LED , 600V , 85Vac~265Vac ...


Huajing Microelectronics

CS6552DEO

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Description
CS6552 R ○ LED :CS6552AEO, CS6552BEO, CS6552EO, CS6552CEO, CS6552DEO 1 CS6552 AC/DC LED , 600V , 85Vac~265Vac LED 。,, LED ,。 CS6552 , V CC , LED / ,,。 : ● ,; ● 600V MOSFET ● 85Vac~265Vac LED ; ● ● ; ● ( LEB ) ● / ; ● ; ● ; ● / ; ● ; ● SOP8 2 2. 1 1 7 CS6552 R ○ 2. 2 CS6552 LED , 600V ,, , LED ,。 2.2.1 V CC , V CC 。 V CC UVLO ,。 V CC UVLO ,。 2.2.2 CS6552 , LED 。 LED : Io = : N × VREF 4 × RCS N V REF CS ( 0.48V ) R CS 2.2.3 CS6552 , 40kHz~48kHz , : 2 VLED NP f = * 2 8 * I LED * LP N S 2.2.4 , MOSFET ,。 CS6552 , MOSFET , 500ns ,, ,。 VCS TLEB t 2.2.5 LED LED , V CC 14.5V , V CC , V CC 14.5V , V CC , LED 。 : Vout = (Vcc + VDa ) × N - VDo : 2 7 CS6552 R ○ N V Da V Do ,V CC V CC ,, 。 2.2.6 LED , V CC , V CC UVLO ,,。 2.2.7 ,CS6552 。 160 ℃, , V CC ,。 , 130 ℃,。 2. 3 GND ZCD VCC CS 2. 4 1 1 2 3 4 8 7 6 5 NC NC OUT OUT P GND 2 ZCD 3 V CC , 。 P 4 CS I/0 5、 6 7、 8 OUT NC MOSFET O 3 7 CS6552 R ○ 3 3. 1 , T amb = 25 ℃ ( CS , ZCD ) ESD ( 3 ) P DMAX θ JA TJ T STG V CC V OUT -0.3~21 -0.3~600 -0.3~7 0.45 145 -45~150 -65~150 4 V V V W ℃ /W ℃ ℃ kV 3. 2 , T amb = 25 ℃ V OP V ON V OFF V OVP V CLAMP I ST I SUPPLY V CS_TH T LEB T DELAY ZCD V ZCD V ZCD_CLAMP T OFF_MIN CS6552AEO CS6552BEO V CC =10V I OUT =0.25A V CC =10V I OUT =0.4A 24 11 30 15 Ω Ω ZCD ZCD I ZCD =2 μ A 1 1.6 4.1 V V μs 470 480 500 190 490 mV ns ns V CC V CC ...




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