JW1769B中文資料三浦微電子數(shù)據(jù)手冊PDF規(guī)格書

DESCRIPTION

The JW1769A/B/C is a constant current LED

regulator with high current accuracy which

applies to single stage step-down power factor

corrected LED drivers.600V power MOS is

integrated, which can significantly simplify the

design of LED lighting system.

High accuracy of output current is achieved by

sampling the output current directly. Critical

conduction mode operation reduces the switching

losses and largely increases the efficiency.

JW1769A/B/C is supplied from the output directly,

and auxiliary winding is not needed.

JW1769A/B/C has multi-protection functions

which largely enhance the safety and reliability of

the system, including VCC over-voltage

protection, VCC UVLO, short-circuit protection,

LED open protection, cycle-by-cycle current limit

and over-temperature protection.

FEATURES

No auxiliary winding

600V high voltage MOSFET integrated

EMI friendly

High current accuracy of line and load

regulation

High power factor with low output

current-ripple

Critical conduction mode

High efficiency over wide operating range

Cycle-by-cycle current limit

LED short protection

LED open protection

Over-temperature protection

Compact SOP7 package

APPLICATIONS

Non-isolation Offline LED driver