sm8012
DESCRIPTION
SM8012TRANSCRIPT
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PWM SM8012
PWM SM8012
SM8012 PWM MOSFET PWM PWM >22KHz
SM8012 OCPOLP VDD UVLO EMI
1. 2. AC240V 0.3W 3. 4. (UVLO) 5. DIP8 6. 5A2mA 7. 8. 650V MOSFET
1. 2. DVDVCD 3. 4. 14W16W
15
1
TEL+86-755-83252905/83252915 FAX+86-755-83252917
http://www.Datasheet4U.com
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PWM SM8012
DIP8
VDD GND FB PWM FB SENSE
15
2
TEL+86-755-83252905/83252915 FAX+86-755-83252917
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PWM SM8012
15
3
RI PWM RI GND
PWM SENSE DRAIN MOSFET NC PCB layout
TA= 25
DRAIN MOS 650 V
VDD
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PWM SM8012
15
4
Avcs PWM VFB/VCS 2.0 V/V VFB(open) FB 6 V IFB(short) FB 1.4 mA ZFB FB 6 K
VTH_0D 0 VDD16V
RI100 K 0.75 V
VTH_PL 3.7 V
TD
35 ms
SENSE Td RI-100 K 300 ns Zsense 40 K
Toc VDD=16V,
FB=3.3V 75 ns
VTH_OC
FB3.3V
RI100 K 0.70 0.75 0.80 V
Fosc RI-100 K 60 65 70 KHz
RIrange 50 100 150 K
VRIopen RI 2 V
Foscburst Burst VDD16V
RI100 K 22 KHz
MOSFET
BVDSS IDDop2.8mA
VFB=0V 650 V
Rds(on)
5
Tr 220 ns
Tf 70 ns
Fosc RI=100 K -3 3 %
TEL+86-755-83252905/83252915 FAX+86-755-83252917
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PWM SM8012
SM8012 PWM 650V MOSFET
(BURST MODE CONTROL)
15
5
TEL+86-755-83252905/83252915 FAX+86-755-83252917
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PWM SM8012
z SM8012 5A, UVLO
AC/DC 2M 1/4W z
SM8012 2.8mA z
EMI SM8012 EMI z
MOS
SM8012 FB PWM VDD FB MOS MOS PWM >22KHz z
RI RI PWM
)()(
6500 KHzKohmRI
Fosc =
z SM8012 PWM SENSE
z
SENSE
15
6
TEL+86-755-83252905/83252915 FAX+86-755-83252917
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PWM SM8012
15
7
z SM8012 OCPOLP
UVLO
TEL+86-755-83252905/83252915 FAX+86-755-83252917
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PWM SM8012
15
8
TEL+86-755-83252905/83252915 FAX+86-755-83252917
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PWM SM8012
15
9
TEL+86-755-83252905/83252915 FAX+86-755-83252917
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PWM SM8012
12V1A
BR1 1N4007*4 D1 FR104 R3 56K/1W
C1 22UF/400V D2 FR107 R4 100K
C2 22u/35V D3 SB360 R5 0.8R/1W
C3 102/1KV F1 250V/2A R6 2K
C4 222/1KV L2 10uH R7 10K
C5 1000uF/25V LED1 RED R8 12K
C6 1000uF/25V R1 1M R9 3K
C7 104 R10 3K TH1 SCK056
C8 104 R11 10R/0.5W U1 SM8012
CX1 0.33UF/275V R15 1.5M U2 PC817
CX2 0.1UF/275V R2 1.5R/0.5W U3 TL431
CY3 222M/250V
15
10
TEL+86-755-83252905/83252915 FAX+86-755-83252917
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PWM SM8012
15
11
TEL+86-755-83252905/83252915 FAX+86-755-83252917