參數(shù)資料
型號(hào)： 88EM8081XX-SAG2C000-T
廠商： MARVELL SEMICONDUCTOR INC
元件分類： 穩(wěn)壓器
英文描述： 2 A POWER FACTOR CONTROLLER, 120 kHz SWITCHING FREQ-MAX, PDSO8
封裝： GREEN, SOIC-8
文件頁數(shù)： 23/64頁
文件大?。?/td> 667K
代理商： 88EM8081XX-SAG2C000-T
88EM8080/88EM8081
LED Power Supply Controller for Flyback Converters
with Power Factor Correction
Copyright 2010 Marvell
Doc. No. MV-S106340-01 Rev. B
August 6, 2010, Preliminary Information
Document Classification: Proprietary
Page 3
PRODUCT OVERVIEW
The Marvell 88EM8080/88EM8081 device is a high
performance LED power supply controller for flyback converters
with output regulation and power factor correction. The
88EM8080/8081 control algorithm uses Average Current Mode
Control (ACMC) for power factor correction (PFC) in LED
lighting applications with low harmonic distortion and good
noise immunity. The Marvell proprietary adaptive loop control
achieves high power factor under high input voltage and low
load conditions. Through Marvell's innovative digital signal
processing (DSP) solution, the LED controller with the PFC
function provides the customer with the smallest package, the
lowest system cost, the lowest total harmonic distortion (THD)
and the best power factor for LED lighting applications.
Both devices work at fixed frequencies, 88EM8080 at 60kHz
while 88EM8081 at 120kHz. The IC operates under Continuous
Conduction Mode (CCM) or Discontinuous Conduction Mode
(DCM) or both combined together operating in Mixed Mode.
The internal voltage loop compensation and current loop control
guarantee system stability and thus reduce the exernal
component count and costs.
The 8-pin SOIC package further facilitates the application
design process by saving board space. The resultant simple
system design and minimum cost makes 88EM8080/88EM8081
the ideal choice for LED applications with PFC. Figure 1 shows
a reference schematic for a universal isolated LED driver with
PFC using the 88EM8080/88EM8081 device.
General Features
Mixed Mode
– CCM and DCM operation
Average current mode control
Adaptive control loop achieves high power factor and
low THD for a wide range of voltage and load
conditions
Adaptive over current protection for universal voltage
Fixed switching frequency
1.2A (typical) driver capability
Minimal external components required
Under voltage lockout (UVLO)
Over voltage protection (OVP)
Thermal shutdown
Input line frequency range from 45Hz to 65Hz
Applications
LED home and facility lighting
LED street lamps
Figure 1: Universal Isolated LED Driver with PFC
VIN
C14
FB
IS
N
S
SGND
PGND
VD
D
4
U3
SW
5
7
8
1
2
3
88
E
M
80
8
1
C9
R19
3
4
R11
1
2
D1
C5
R6
VDD
D5
T1B 1
2
C4
R15
D4
1
2
R9
R16
R13
N
L
L1
HVDC
C7
C10
R18
R17
C8
R7
R12
VAR1
F1
R5
C6
Q1
C12
D10
RS1J
C3
D9
C11
C13
NTC1
R23
R10
LED +
LED -
C2
R4
R8
R3
R1
R2
U2
TS321LT
1
2
PC1A
D6
1
2
R22
R21
C1
12
3
VR
E
F
1
5
3
4
2
U1
TL431
P/O PC1A
D7
D8
D2
D3
T1
相關(guān)PDF資料
PDF描述
890-001-9PA1-2C2-18T 9 CONTACT(S), MALE, D NANOMINIATURE CONNECTOR, CRIMP, PLUG
890-001-15PA2-2C7-18T 15 CONTACT(S), MALE, D NANOMINIATURE CONNECTOR, CRIMP, PLUG
890-001-25PA2-2C2-18T 25 CONTACT(S), MALE, D NANOMINIATURE CONNECTOR, CRIMP, PLUG
890-001-51PA1-2A1-18T 51 CONTACT(S), MALE, D NANOMINIATURE CONNECTOR, CRIMP, PLUG
890-001-9PA2-2A1-18T 9 CONTACT(S), MALE, D NANOMINIATURE CONNECTOR, CRIMP, PLUG
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
88EM8082A1-SAG2C000 制造商:Marvell 功能描述:?ACTIVE PFC CONTROLLER FOR AC-DC FLYBACK LED APPLICATIONS - Bulk 制造商:Marvell 功能描述:88EM8082 Series - Single-Stage 120 kHz Fly-back AC/DC LED Driver - SOIC-8
88EM8182B0-SAE2C000-AL00 制造商:Marvell 功能描述:?NON-DIMMABLE, TRIAC AC/DC LED DRIVER, 110V/220V, LOW VOLTAG - Trays
88EM8182B0-SAE2C000TAL00 制造商:Marvell 功能描述:?NON-DIMMABLE; TRIAC AC/DC LED DRIVER; 110V/220V; LOW VOLTAG - Tape and Reel 制造商:Marvell 功能描述:88EM8182 Series - Fly-back Non-Dimmable LED Driver 110V/220V - 8-Pin SOIC
88EM8183B0-SAE2C000-AL00 制造商:MARVELL 功能描述:0
88EM8183B0-SAE2C000TAL00 制造商:Marvell 功能描述:?DIMMABLE; TRIAC AC/DC LED DRIVER; 110V/220V; LOW VOLTAGE + - Tape and Reel 制造商:Marvell 功能描述:Marvell 88EM8183 Series 19V Universal Triac Dimmable LED Driver - SOIC-8
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*