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Unisonic Technologies - HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH

Numéro de référence UPSS1650
Description HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH
Fabricant Unisonic Technologies 
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UPSS1650 fiche technique
UNISONIC TECHNOLOGIES CO., LTD
UPSS1650
Preliminary
HIGH PRECISION CC/CV
PRIMARY-SIDE PWM POWER
SWITCH
CMOS IC
DESCRIPTION
The UTC UPSS1650 is a primary control switch mode charger
and adapter applications. The controlled variable is transferred by
an auxiliary winding from the secondary to the primary side. The
device integrates PWM controller to enhance the performance of
discontinuous conduction mode (DCM) flyback converters.
The UTC UPSS1650 operates in primary-side sensing and
regulation. Opto-coupler and TL431 could be eliminated. It also
provides off-time modulation to linearly decrease PWM frequency
under light-load conditions so that low standby power can be
achieved.
The UTC UPSS1650 achieves high precision CV/CC regulation
and high power efficiency. It offers comprehensive protection
coverage with auto-recovery features including Cycle-by-cycle
current limiting, VDD over voltage protection, VDD clamp, OTP,
leading edge blanking, VDD under voltage lockout, etc.
DIP-8
SOP-8
FEATURES
* Built-in 600V Power MOSFET
* ±5% constant voltage regulation at universal AC input
* High precision constant current regulation at universal AC input
* Primary side control without TL431 and opto-coupler
* Programmable CV and CC regulation
* Programmable cable compensation in CV mode
* Flyback topology in DCM operation
* Frequency hopping to reduce system EMI
* Built-in leading edge blanking
* Built-in primary winding inductance
compensation
* Power on soft start
* Gate Output Maximum Voltage Clamped at
15V
* Cycle-by-cycle current limiting
* Over voltage protection
* VDD under-voltage lockout
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
UPSS1650L-D08-T
UPSS1650G-D08-T
UPSS1650L-S08-R
UPSS1650G-S08-R
Package
DIP-8
SOP-8
Packing
Tube
Tape Reel
UPSS1650L-D08-T
(1)Packing Type
(2)Package Type
(3)Halogen Free
(1) T: Tube, R: Tape Reel
(2) D08: DIP-8, S08: SOP-8
(3) L: Lead Free, G: Halogen Free
www.unisonic.com.tw
Copyright © 2013 Unisonic Technologies Co., Ltd
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