UCSR3652SL-D07A-T Datasheet, PDF (1/10 Pages) Unisonic Technologies – CMOS IC

UNISONIC TECHNOLOGIES CO., LTD
UCSR3652S
HIGH PRECISION CC/CV
PRIMARY-SIDE PWM POWER
SWITCH
CMOS IC
 DESCRIPTION
DIP-7A
The UTC UCSR3652S 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 UCSR3652S 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 UCSR3652S 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, V_DD over voltage protection, V_DD
clamp, OTP, leading edge blanking, V_DD under voltage lockout,
etc.
 FEATURES
SOP-8
* High voltage startup circuit
* Built-in 650V 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
* V_DD under-voltage lockout
 ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
UCSR3652SL-D07A-T
UCSR3652SG-D07A-T
-
UCSR3652SG-S08-R
Package
DIP-7A
SOP-8
Packing
Tube
Tape Reel
UCSR3652SL-D07A-T
(1)Packing Type
(2)Package Type
(3)Green Package
(1) T: Tube, R: Tape Reel
(2) D07A: DIP-7A, S08: SOP-8
(3) L: Lead Free, G: Halogen Free and Lead Free
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