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UPSR107 Datasheet Preview

UPSR107 Datasheet

HIGH PRECISION CC/CV PRIMARY-SIDE PWM CONTROLLER

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UNISONIC TECHNOLOGIES CO., LTD
UPSR107
Preliminary
HIGH PRECISION CC/CV
PRIMARY-SIDE PWM
CONTROLLER
DESCRIPTION
The UTC UPSR107 is a primary controller 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
Quasi Resonant (QR) mode flyback converters.
The UTC UPSR107 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 UPSR107 integrates functions and protections of
Under Voltage Lockout (UVLO), VDD Over Voltage Protection (VDD
OVP), Output Over Voltage Protection (Output OVP), OTP, Soft
Start, Cycle-by-cycle Current Limiting (OCP), Pin Floating
Protection, Gate Clamping, VDD Clamping.
CMOS IC
65 4
1 23
SOT-26
FEATURES
* ±5% CC and CV Precision
* Easily Meet EPS Level 6
* QR Mode Control for High Efficiency and Low EMI
* Programmable CV and CC Regulation
* Less than 70mW Standby Power
* Programmable Cable drop Compensation
* Pin Floating Protection
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
UPSR107L-AG6-R
UPSR107G-AG6-R
* Built-in Soft Start
* Output Over Voltage Protection
* Cycle-by-Cycle Current Limiting
* Built-in Leading Edge Blanking (LEB)
* VDD Under Voltage Lockout with Hysteresis
(UVLO)
* VDD OVP
* VDD Clamp
Package
SOT-26
Packing
Tape Reel
UPSR107G-AG6-R
(1) Packing Type
(2) Package Type
(3) Green Package
(1) R: Tape Reel
(2) AG6: SOT-26
(3) G : Halogen Free and Lead Free, L: Lead Free
www.unisonic.com.tw
Copyright © 2020 Unisonic Technologies Co., Ltd
1 of 8
QW-R103-177.a




UTC

UPSR107 Datasheet Preview

UPSR107 Datasheet

HIGH PRECISION CC/CV PRIMARY-SIDE PWM CONTROLLER

No Preview Available !

UPSR107
MARKING
654
PS07
123
PIN CONFIGURATION
Preliminary
CMOS IC
GND 1
GATE 2
CS 3
6 VDD
5 FB
4 CC
PIN DESCRIPTION
PIN NO. PIN NAME
1
GND
Ground
DESCRIPTION
2
GATE
Totem-pole gate drive output for power MOSFET.
3 CS Current sense input. Connected to MOSFET current sensing resistor node.
4 CC Connect a capacitor between this pin and GND for CC regulation.
5 FB System feedback pin. This control input regulates both the output voltage in CV mode
and output current in CC mode based on the flyback voltage of the auxiliary winding.
6 VDD Power Supply
BLOCK DIAGRAM
VDD
6
Regulator
& Vref
Por
QR
Logic core
Drive
2 GATE
OVP
33V
FB 5
2V
Cable
compensation
CV
controller
Tdemag
CC
detector controller
4
CC
Softstart
LEB
3 CS
1
GND
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 8
QW-R103-177.a


Part Number UPSR107
Description HIGH PRECISION CC/CV PRIMARY-SIDE PWM CONTROLLER
Maker UTC
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UPSR107 Datasheet PDF






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