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OB2510 PDF даташит

Спецификация OB2510 изготовлена ​​​​«On-Bright Electronics» и имеет функцию, называемую «High Precision CC/CV Primary-Side Controller».

Детали детали

Номер произв OB2510
Описание High Precision CC/CV Primary-Side Controller
Производители On-Bright Electronics
логотип On-Bright Electronics логотип 

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OB2510 Даташит, Описание, Даташиты
OB2510
High Precision CC/CV Primary-Side Controller
GENERAL DESCRIPTION
OB2510 is a high performance offline PSR
controller 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.
Proprietary Constant Voltage (CV) and Constant
Current (CC) control is 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 100mW standby power.
OB2510 offers comprehensive protection
coverage with auto-recovery features including
Cycle-by-Cycle current limiting, VDD over voltage
protection, short circuit protection, built-in leading
edge blanking, VDD under voltage lockout (UVLO),
OTP etc.
OB2510 is offered in SOT23-5 package.
FEATURES
Primary-side Sensing and Regulation Without
TL431 and Opto-coupler
High Precision Constant Voltage and Current
Regulation at Universal AC Input
Multi-mode PWM/PFM operation for efficiency
improving
Good dynamic response
Programmable CV and CC Regulation
Built-in Line Voltage and Primary Winding
Inductance Compensation
Programmable Cable Drop Compensation
No Need For Control Loop Compensation
Audio Noise Free Operation
Drive BJT Switch
Built-in Leading Edge Blanking (LEB)
Comprehensive Protection Coverage with
auto-recovery
VDD Over Voltage Protection
VDD Under Voltage Lockout with
Hysteresis (UVLO)
Cycle-by-Cycle Current Limiting
Feedback Loop Open Protection
Output Short Circuit Protection
Over Temperature Protection (OTP)
APPLICATIONS
Low Power AC/DC offline SMPS for
Cell Phone Charger
Digital Cameras Charger
Small Power Adapter
Auxiliary Power for PC, TV etc.
Linear Regulator/RCC Replacement
Figure.1. Typical CC/CV Curve
TYPICAL APPLICATION
~ ++
AC
VO
NP NS + CO
FB VDD
GND
CS BD
OB2510
+
NAUX
RS
©On-Bright Electronics
Confidential
-1-
Preliminary datasheet
OB_DOC_DS_251000









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OB2510 Даташит, Описание, Даташиты
GENERAL INFORMATION
Pin Configuration
SOT23-5.
Ordering Information
Part Number
Description
OB2510MP
SOT23-5, Pb-free, T&R
OB2510
High Precision CC/CV Primary-Side Controller
Package Dissipation Rating
Package
RθJA (/W)
SOT23-5
200
Absolute Maximum Ratings
Parameter
Value
VDD Voltage
-0.3 to 30V
FB Input Voltage
-0.3 to 7V
CS Input Voltage
-0.3 to 7V
BD Input Voltage
-0.3 to 7V
Min/Max Operating Junction
Temperature TJ
Min/Max Storage
Temperature Tstg
Lead Temperature
(Soldering, 10secs)
-40 to 150
-55 to 150
260
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.
©On-Bright Electronics
Confidential
-2-
Preliminary datasheet
OB_DOC_DS_251000









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OB2510 Даташит, Описание, Даташиты
Marking Information
OB2510
High Precision CC/CV Primary-Side Controller
510YWW
. ZZZ s
Y:Year Code
WW:Week Code(01-52)
ZZZ: Lot code
s: Internal code
TERMINAL ASSIGNMENTS
Pin Num Pin Name
1 FB
2 GND
3 CS
4 BD
5 VDD
I/O Description
I
The voltage feedback from auxiliary winding. Connected to resistor
divider from auxiliary winding reflecting output voltage.
P Ground
I Current sense input
O Base drive with current limit for power BJT.
P Power Supply
©On-Bright Electronics
Confidential
-3-
Preliminary datasheet
OB_DOC_DS_251000










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Номер в каталогеОписаниеПроизводители
OB2510High Precision CC/CV Primary-Side ControllerOn-Bright Electronics
On-Bright Electronics

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