CXAC8514 CXAC8514A is a highly integrated current mode PWM control IC optimized for high performance, low standby power (<100mW) and cost effective offline flyback converter applications in 40W～60W range. CXAC8514 offers complete protection coverage with automatic self-recovery feature including Cycle-by-Cycle current limiting (OCP), CS short protection, over load protection (OLP), and VDD under voltage lockout (UVLO) and latch feature including over temperature protection (OTP), over voltage (fixed or adjustable) protection(OVP). Excellent EMI performance is achieved with frequency shuffling technique together with soft switching control at the totem pole gate drive output
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[ CXAC8514 ]"
目录
产品概述 返回TOP
CXAC8514 CXAC8514A is a highly integrated current mode PWM control IC optimized for high performance, low standby power (<100mW) and cost effective offline flyback converter applications in 40W～60W range. CXAC8514 offers complete protection coverage with automatic self-recovery feature including Cycle-by-Cycle current limiting (OCP), CS short protection, over load protection (OLP), and VDD under voltage lockout (UVLO) and latch feature including over temperature protection (OTP), over voltage (fixed or adjustable) protection(OVP). Excellent EMI performance is achieved with frequency shuffling technique together with soft switching control at the totem pole gate drive output. Tone energy at below 20KHz is minimized in the design and audio noise is eliminated during operation.
产品特点 返回TOP
●Power on Soft Start Reducing MOSFET VDS Stress
●Frequency shuffling for EMI
●Audio Noise Free Operation
●Extended Burst Mode Control For Improved Efficiency and Minimum Standby Power Design
●Internal Synchronized Slope Compensation
●Fixed 65KHz Switching Frequency (CXAC8514, CXAC8514B)
●Fixed 100KHz Switching Frequency (CXAC8514C)
●Good protection coverage with auto self-recovery
﹡ VDD Under Voltage Lockout with Hysteresis (UVLO)
﹡Over Temperature Protection (OTP) with latch shut down(8204) or auto-recovery(CXAC8514B,CXAC8514C)
﹡Cycle-by-cycle over current threshold setting for constant output power limiting over universal input voltage range
﹡Overload Protection (OLP) with auto-recovery
﹡VDD Over voltage Protection(OVP) with latch shut down(8204) or auto-recovery(CXAC8514B.CXAC8514C)
﹡Adjustable OVP through external Zener
﹡CS floating protection with auto-recovery
﹡CS short protection with auto-recovery
应用范围 返回TOP
Offline AC/DC flyback converter for
z AC/DC adapter
z PDA power supplies
z Digital cameras and camcorder adapter
z VCR,SVR, STB, DVD&DVCD player SMPS
z Set-top box power
z Auxiliary power supply for PC and server
z Open-frame SMPS
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产品封装图 返回TOP
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Medium Power Controller(中等功率控制芯片) |
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Part Number |
Power |
Standby |
MODE |
Freq |
Accu |
Freq Shuffling |
OTP |
OVP |
Package |
|
(80-265V) |
(mW) |
(Flyback) |
(KHz) |
||||||
|
30W |
≤200 |
PWM |
50-100/ADJ |
±1% |
Y |
A |
A |
SOT23-6 |
|
|
90W |
≤300 |
PWM |
50-100/ADJ |
±1% |
Y |
A |
A |
SOP8 |
|
|
45W |
≤100 |
PWM |
65 |
±1% |
Y |
L |
L |
SOT23-6 |
|
|
45W |
≤100 |
PWM |
65 |
±1% |
Y |
A |
A |
SOT23-6 |
|
|
90W |
≤100 |
QR |
90 |
±1% |
N |
A |
A |
SOP8 |
|
|
45W |
≤100 |
PWM |
65 |
±1% |
Y |
A |
A |
SOT23-6 |
|
|
L:Latch; A:Auto-recovery |
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