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DP2535 반도체 회로 부품 판매점

High Precision CC/CV Primary-Side PWM Power Switch



DEPP Microelectronics 로고
DEPP Microelectronics
DP2535 데이터시트, 핀배열, 회로
DP2535
High Precision CC/CV Primary-Side PWM Power Switch
GENERAL DESCRIPTION
DP2535 is a high performance offline PWM power
switch for low power AC/DC charger and adapter
applications. It operates in primary-side sensing
and regulation. Consequently, opto-coupler and
TL431 could be eliminated. High Precision
Constant Voltage (CV) and Constant Current (CC)
control are integrated as shown in the figure below.
In CC control, the current and output power setting
can be adjusted externally by the sense resistor Rs
at CS pin. In CV control, multi-mode operations are
utilized to achieve high performance and high
efficiency. In addition, good load regulation is
achieved by the built-in Cable Drop Compensation.
Device operates in PFM in CC mode as well at
large load condition and it operates in PWM with
frequency reduction at light/medium load. The chip
consumes very low operation current, it can
achieve less than 80mW standby power.
DP2535 offers comprehensive protection coverage
with auto-recovery features including
Cycle-by-Cycle current limiting, VDD Over Voltage
Protection (VDD OVP), short circuit protection,
built-in leading edge blanking, VDD under voltage
lockout (UVLO), OTP, etc.
High precision constant voltage (CV) and constant
current (CC) can be achieved by DP2535.
DP2535 is offered in SOP8 package..
TYPICAL APPLICATION
FEATURES
± 5% Constant Voltage Regulation and
Current Regulation at Universal AC Input
Primary Side Regulation (PSR) Without TL431
and Opto-coupler
No Need for Control Loop Compensation
Programmable CV and CC Regulation
Multi-Mode PWM/PFM Operation
Output Short Load Protection
Less than 80mW Standby Power
Built-in Line Voltage and Primary Winding
Inductance Compensation
Built-in Adaptive Current Peak Regulation
Programmable Cable Drop Compensation
Audio Noise Free Operation
Built-in Over Temperature Protection (OTP)
Soft Gate Driver for Good EMI Performance
Built-in Leading Edge Blanking (LEB)
Cycle-by-Cycle Current Limiting
VDD Under Voltage Lockout with Hysteresis
(UVLO)
VDD OVP & Clamp
APPLICATIONS
Low Power AC/DC offline SMPS for
Cell Phone Charger
Digital Camera Charger
Small Power Adapter
Auxiliary Power for PC, TV etc.
Linear Regulator/RCC Replacement
www.depuw.com
- 1 -/9
Rev.2.0 AUG 2011


DP2535 데이터시트, 핀배열, 회로
DP2535
High Precision CC/CV Primary-Side PWM Power Switch
GENERAL INFORMATION
Pin Configuration
The pin map of SOP8 package is shown as below.
Ordering Information
Part Number
DP2535
Description
SOP8, Halogen free,
2500Pcs/Reel
Note: All Devices are offered in Pb-free Package if not
otherwise noted.
Package Dissipation Rating
Package
SOP8
RθJA (/W)
90
Absolute Maximum Ratings
Parameter
Drain Voltage (off state)
VDD Zener Clamp Voltage
VDD Clamp Continuous
Current
Value
-0.3 to 600V
VDD Clamp
10 mA
CS Input Voltage
-0.3 to 7V
INV Input Voltage
-0.3 to 7V
Maximum Operating Junction
Temperature TJ
Min/Max Storage Temperature
Tstg
Lead Temperature (Soldering,
10secs)
150 oC
-55 to 150 oC
260 oC
Note: Stresses beyond those listed under “absolute maximum
ratings” may cause permanent damage to the device. These
are stress ratings only, functional operation of the device at
these or any other conditions beyond those indicated under
“recommended operating conditions” is not implied. Exposure
to absolute maximum-rated conditions for extended periods
may affect device reliability.
Output Power Table (1)
Part Number
230VAC ± 15%(2)
85-265VAC
Adapter(3)
Adapter(3)
DP2535
7.5W
5.5W
Note . The Max. output power is limited by junction temperature
Note 2. 230VAC or 100/115VAC with doublers
Note 3. Typical continuous power in a non-ventilated enclosed adapter with sufficient drain pattern as a heat sink at 50
ambient.
www.depuw.com
- 2 -/9
Rev.2.0 AUG 2011




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