AX2530 PDF даташит
Спецификация AX2530 изготовлена «AXElite» и имеет функцию, называемую «High Precision CC/CV Primary-Side PWM Power Switch». |
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Детали детали
Номер произв | AX2530 |
Описание | High Precision CC/CV Primary-Side PWM Power Switch |
Производители | AXElite |
логотип |
10 Pages
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AX2530
High Precision CC/CV Primary-Side PWM
Power Switch
GENERAL DESCRIPTION
AX2530 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. 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.
AX2530 offers power on soft start control and protection coverage with
auto-recovery features including Cycle-by- Cycle current limiting, VDD OVP, VDD clamp
and UVLO. Excellent EMI performance is achieved with Power-Source proprietary
frequency shuffling technique.
High precision constant voltage (CV) and constant current (CC) can be achieved by
AX2530.
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AX2530
FEATURES
- ±5% Constant Voltage Regulation at Universal AC input
- High Precision Constant Current Regulation at Universal AC input
- Primary-side Sensing and Regulation Without TL431 and Opto-coupler
- Programmable CV and CC Regulation
- Adjustable Constant Current and Output Power Setting
- Built-in Secondary Constant Current Control with Primary Side Feedback
- Built-in Adaptive Current Peak Regulation
- Built-in Primary winding inductance compensation
- Programmable Cable drop Compensation
- Power on Soft-start
- Built-in Leading Edge Blanking (LEB)
- Cycle-by-Cycle Current Limiting
- VDD Under Voltage Lockout with Hysteresis (UVLO)
- VDD OVP
- VDD Clamp
BLOCK DIAGRAM
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Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.2 Mar.26, 2012
No Preview Available ! |
AX2530
PIN ASSIGNMENT
The package of AX2530 is SOT23-6L; the pin assignment is given by:
GND
GATE
CS
(Top View)
1 6 VDD
2 5 COMP
3 4 INV
SOT23-6L
Name
Pin
No.
I/O
Description
GND 1 P Ground
GATE 2 O Drive MOSFET
CS 3 I Current sense input
INV
4
I
The voltage feedback
from auxiliary winding
COMP 5
I
Loop Compensation
for CV Stability
VDD 6 P Power Supply
ORDER/MARKING INFORMATION
Order Information
AX2530 X X
Package Type Packing
C: SOT23-6L Blank: Bulk
A: Taping
Top Marking
83L YW
AX2530
WY ......( W : A~Z ( 27~52
WEEKS) , Y : YEAR )
YW ....( Y : year ,
W : A~Z (1~26 WEEKS))
Lot Number
ABSOLUTE MAXIMUM RATINGS (TA=25°C)
Characteristics
Symbol
Rating
Unit
Drain Voltage (off state)
-0.3 to Bvdss
V
VDD Voltage
-0.3 to VDD_Clamp V
VDD Zener Clamp Continuous Current
10 mA
COMP Voltage
-0.3 to 7
V
CS Input Voltage
-0.3 to 7
V
INV Input Voltage
-0.3 to 7
V
Max Operating Junction Temperature
TJ 150 °C
Min/Max Storage Temperature
Tstg
-55 to 150
°C
Lead Temperature (Soldering, 10secs)
260 °C
Thermal Resistance from Junction to case
θJC 180 °C/W
Thermal Resistance from Junction to ambient
θJA
250 °C/W
Note: θJA is measured with the PCB copper area (need connect to OUT pin) of approximately 1.5 in2 (Multi-layer).
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Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.2 Mar.26, 2012
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Номер в каталоге | Описание | Производители |
AX2530 | High Precision CC/CV Primary-Side PWM Power Switch | AXElite |
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