US3602 Datasheet, PDF (1/7 Pages) Unisonic Technologies – HIGH PRECISION PSR CONSTANT CURRENT LED DRIVER

UNISONIC TECHNOLOGIES CO., LTD
US3602
Preliminary
HIGH PRECISION PSR
CONSTANT CURRENT
LED DRIVER
CMOS IC
 DESCRIPTION
The UTC US3602 is a primary side control offline LED lighting
controller. It operates in inductor current DCM mode and can
achieve accurate constant current.
The UTC US3602 integrates 600V power MOSFET and
simplifies the LED lighting system design by eliminating the
secondary side feedback components and the opto-coupler. The
loop compensation components are also removed while
maintaining stability overall operating conditions.
The LED current can be adjusted externally by the sense
resistor RCS at CS pin. The UTC US3602 achieves ±3% accuracy
of LED current along with excellent line regulation and load
regulation.
The UTC US3602 offers comprehensive protection coverage
with auto-recovery features including LED short circuit protection,
LED open circuit protection, Cycle-by-cycle current limiting, OTP,
V_CC over voltage protection, leading edge blanking, V_CC under
voltage lockout, etc.
 FEATURES
* Built-in 600V Power MOSFET
* ±3% constant current regulation at universal AC input
* Primary side control without TL431 and opto-coupler
* Programmable CC regulation
* Flyback topology in DCM operation
* Low operating current to improve efficiency
* High resistance feedback resistor to improve efficiency
* LED short and open circuit protection
* Cycle-by-cycle current limiting
* Built-in leading edge blanking
* V_CC over voltage protection
* V_CC under-voltage lockout
* Feedback loop short circuit protection
* Current sense resistor open circuit protection
 ORDERING INFORMATION
Ordering Number
US3602G-S08-R
Package
SOP-8
Packing
Tape Reel
US3602G-S08-R
(1)Packing Type
(2)Package Type
(3)Green Package
(1) R: Tape Reel
(2) S08: SOP-8
(3) G: Halogen Free and Lead Free
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