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AX6224 PDF даташит

Спецификация AX6224 изготовлена ​​​​«AXElite» и имеет функцию, называемую «Current Mode PWM Power Switch».

Детали детали

Номер произв AX6224
Описание Current Mode PWM Power Switch
Производители AXElite
логотип AXElite логотип 

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AX6224 Даташит, Описание, Даташиты
AX6224
Current Mode PWM Power Switch
GENERAL DESCRIPTION
AX6224 combines a dedicated current mode PWM controller with a high voltage
power MOSFET. It is optimized for high performance, low standby power, and cost
effective off-line flyback converter applications in under 8W range.
AX6224 offers complete protection coverage with automatic self-recovery feature
including Cycle-by-Cycle current limiting (OCP), over load protection (OLP), VDD over
voltage clamp and under voltage lockout (UVLO). Excellent EMI performance is achieved
with proprietary frequency shuffling technique together with soft switching control at the
totem pole gate drive output.
The tone energy at below 20KHZ is minimized in the design and audio noise is
eliminated during operation. AX6224 is offered in SOP-8L package.
FEATURES
- Power on Soft Start Reducing MOSFET VDS Stress
- Frequency Shuffling for EMI
- Extended Burst Mode Control For Improved Efficiency and Minimum Standby Power
Design
- Audio Noise Free Operation
- Fixed 50KHZ Switching Frequency
- Internal Synchronized Slope Compensation
- Low VDD Startup Current and Low Operating Current
- Leading Edge Blanking on Current Sense Input
- Good Protection Coverage With Auto Self-Recovery
VDD Over Voltage Clamp and Under Voltage Lockout with Hysteresis (UVLO)
Line Input Compensated Cycle-by-Cycle Over-current Threshold Setting for
Constant Output Power Limiting Over Universal Input Voltage Range
Overload Protection (OLP)
Over Voltage Protection (OVP)
- Compatible with OB2353/OB2354/CR6224
- Pb-Free SOP-8L
1/9
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.0 Apr. 05, 2012









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AX6224 Даташит, Описание, Даташиты
BLOCK DIAGRAM
AX6224
PIN ASSIGNMENT
The package of AX6224 is SOP-8L; the pin assignment is given by:
( Top View )
VDDG 1
VDD 2
FB 3
AX6224
SENSE 4
SOP-8L
8 GND
7 GND
6 DRAIN
5 DRAIN
Name
Pin
No.
I/O
Description
VDDG
1
P
Internal Gate Driver
Power Supply
VDD
2
P
IC DC Power Supply
Input
Feedback input pin.
The PWM duty cycle
is determined by
FB 3 I voltage level into this
pin and the
current-sense signal
at Pin 4.
SENSE 4 I Current sense input
HV MOSFET Drain
Pin. The Drain pin is
DRAIN 5,6 O connected to the
primary lead of the
transformer
GND 7,8 P Ground
2/9
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.0 Apr. 05, 2012









No Preview Available !

AX6224 Даташит, Описание, Даташиты
AX6224
ORDER/MARKING INFORMATION
Order Information
AX6224 X X
Package Packing
S: SOP-8L Blank : Tube
Top Marking
AXLogo
6 2 2 4 Part number
Y Y W W X ID code:internal
WW:01~52
Year: 11=2011
12=2012
ABSOLUTE MAXIMUM RATINGS (TA=25°C)
Characteristics
Symbol Rating Unit
Drain Voltage (off state)
-0.3 to 600 V
VDD Voltage
-0.3 to 30 V
VDDG Input Voltage
-0.3 to 30 V
VDD Clamp Continuous Current
10 mA
FB Input Voltage
-0.3 to 7 V
Sense Input Voltage
-0.3 to 7 V
Min/Max Operating Junction Temperature
TJ -20 to 150 °C
Min/Max Storage Temperature
TSTG -55 to 160 °C
Lead Temperature (Soldering, 10secs)
260 °C
Thermal Resistance from Junction to case
θJC 25 °C/W
Thermal Resistance from Junction to ambient
θJA 70 °C/W
Note: θJA is measured with the PCB copper area (need connect to OUT pin) of approximately 1.5 in2 (Multi-layer).
3/9
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.0 Apr. 05, 2012










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