900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf






SiFirst

SFL900C Datasheet Preview

SFL900C Datasheet

super-PFC/PSR Controller

No Preview Available !

SFL900C
super-PFC/PSRTM Controller for LED Lighting
FEATURES
super-PFC/PSRTM Control Supports Both
Primary Side Regulation (PSR) and
Secondary Side Regulation (SSR)
Pin Compatible with Popular PFC Controllers
THD<10% using min-THDTM Technique
Built-in AC Line and Load Compensation for
High Precision LED Output Current
Highly Linear Analog Multiplier with
“Frequency Adjusting” for High PF
Max. 90KHz Frequency Clamping for EMI
LED Open/Short Protection
Burst Mode Control @ Light Loading
Trimmed 1.5% Internal Voltage Reference
Very Low Startup Current
Under Voltage Lockout with 11.7V Hysteresis
Built-in Soft Start
Clear External EA Feedback Network before
Power On
Cycle-by-Cycle Current Limiting
Built-in Leading Edge Blanking (LEB)
VCC Over Voltage Protection (OVP)
Audio Noise Free Operation
10V to 32V Wide Range of VCC Voltage
500mA Drive Capability
APPLICATIONS
LED Lighting Application
SFL900C is a high performance, high power factor
flyback PWM controller special for LED lighting
applications. The IC adopts unique super-
PFC/PSRTM which can support both PSR and SSR
applications.
SFL900C is pin compatible with mainstream PFC
controllers such as XX6561/6562, XX7527, etc.
SFL900C also integrates proprietary min-THDTM,
technique, which can achieve less than 10% THD for
universal line input.
SFL900C has built-in Load CC Compensation and
AC Line CC Compensation function, which can
further increase LED output CC accuracy. The IC has
Max. 90KHz Frequency Clamping function and soft
totem pole Gate driver to improve system conduction
and radiation EMI. The IC will Clear External EA
Feedback Network before IC power on, which can
reduces startup LED current spike. The IC also has
Soft Start control during power on period.
In SFL900C, the proprietary “Frequency Adjusting”
can help to improve THD performance, while ensures
audio noise free operation.
SFL900C integrates functions and protections of
Under Voltage Lockout (UVLO), LED Open/Short
Protection, VCC Over Voltage Protection (OVP),
Load Over Voltage Protection (Load OVP), Soft Start,
Cycle-by-cycle Current Limiting (OCP), Burst Mode
Control @ Light Loading, GD Clamping, VCC
Clamping, etc.
SFL900C is available in SOP-8 and DIP-8 packages.
GENERAL DESCRIPTION
TYPICAL APPLICATION (PSR Application)
EMI
Filter
SFL900C
1 FB
VCC 8
2 COMP
3 MULT
4 CS
GD 7
GND 6
DEM 5
©SiFirst Technology
-1-
Confidential
SiFirst_DS_900C_V1.0




SiFirst

SFL900C Datasheet Preview

SFL900C Datasheet

super-PFC/PSR Controller

No Preview Available !

TYPICAL APPLICATION (SSR Application)
EMI
Filter
SFL900C
VCC
DEM GATE
MULT SFL900C CS
FB COMP GND
SFL100
Pin Configuration
FB
COMP
MULT
CS
18
SOP8
27
36
45
VCC
GD
GND
DEM
Ordering Information
Part Number
Top Mark
SFL900CSG
SFL900CSG
SFL900CSGT
SFL900CSG
SOP8
SOP8
Package
Green
Green
Tape & Reel
Yes
©SiFirst Technology
- 2 - Confidential
SiFirst_DS_900C_V1.0


Part Number SFL900C
Description super-PFC/PSR Controller
Maker SiFirst
PDF Download

SFL900C Datasheet PDF






Similar Datasheet

1 SFL900 super-PFC/PSR Controller
SiFirst
2 SFL900B super-PFC/PSR Controller
SiFirst
3 SFL900C super-PFC/PSR Controller
SiFirst





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy