The CXAC8544 is a high performance AC/DC power supply controller for battery charger and adapter applications. The device uses Pulse Frequency Modulation(PFM) method to build discontinuous conduction mode (DCM) flyback power supplies. The CXAC8544 provides accurate constant voltage, constant current (CV/CC) regulation while removing the opto-coupler and secondary control circuitry. It also eliminates the need of loop compensation circuitry while maintaining stability. The CXAC8544 achieves excellent regulation and high average efficiency, yet meets the requirement for no-load consumption less than 30mW
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[ CXAC8544 ]"
目录
产品概述 返回TOP
The CXAC8544 is a high performance AC/DC power supply controller for battery charger and adapter applications. The device uses Pulse Frequency Modulation(PFM) method to build discontinuous conduction mode (DCM) flyback power supplies. The CXAC8544 provides accurate constant voltage, constant current (CV/CC) regulation while removing the opto-coupler and secondary control circuitry. It also eliminates the need of loop compensation circuitry while maintaining stability. The CXAC8544 achieves excellent regulation and high average efficiency, yet meets the requirement for no-load consumption less than 30mW.
产品特点 返回TOP
Set-in high-voltage power switch tube of 700V and few peripheral components.
Primary Side Control for Rectangular Constant Current and Constant Voltage Output
Sub-microampere Start-up Current 30mW No-load Input Power Feasible
Tight CV Regulation Performance
Eliminates Opto-coupler and Secondary CV/CC Control Circuitry Eliminates Control Loop Compensation Circuitry
Flyback Topology in DCM Operation
Random Frequency Modulation to Reduce System EMI Built-in Soft Start
Open Feedback Protection
Short Circuit Protection
SOP8 Package
应用范围 返回TOP
Adapters/Chargers for Cell/Cordless Phones, PDAs, MP3 and Other Portable Apparatus
LED Drivers
Standby and Auxiliary Power Supplies
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
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AC/DC Converter（AC/DC转换器）>>>原边控制芯片系列) |
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Part Number |
Power |
Standby |
MODE |
Freq |
Accu |
Cable |
OTP/ |
Package |
|
(80-265V) |
(mW) |
(Flyback) |
(KHz) |
CC/CV |
Compen-sation |
OVP |
||
|
10W |
≤300 |
PFM |
65 |
5%/5% |
Y |
-/Y |
SOP8 |
|
|
12W |
≤30 |
PFM |
65 |
5%/3% |
Y |
Y/Y |
SOP8 |
|
|
10W |
≤100 |
PFM |
65 |
7%/5% |
- |
Y/- |
SOT23-6 |
|
|
5W |
≤100 |
PFM |
65 |
7%/5% |
- |
Y/- |
SOP8 |
|
|
12W |
≤30 |
PFM |
65 |
5%/5% |
Y |
-/Y |
SOT23-6 |
|
|
10W |
≤30 |
PFM |
65 |
5%/5% |
Y |
-/Y |
SOP8 |
|
|
18W |
≤30 |
PFM |
65 |
5%/5% |
Y |
Y/Y |
SOT23-6 |
|
|
15W |
≤100 |
PFM |
65 |
5%/5% |
Y |
Y/Y |
DIP-8 |
|
|
4W |
≤30 |
PFM |
65 |
5%/5% |
Y |
-/Y |
SOP8 |
|
|
30W |
≤100 |
PFM/PWM |
65 |
3%/- |
- |
Y/Y |
SOP8 |
|
|
10W |
≤30 |
PFM |
65 |
5%/5% |
Y |
-/Y |
SOP8 |
|
|
18W |
≤80 |
QR |
120 |
5%/3% |
Y |
Y/Y |
SOT23-6 |
|
|
5W |
≤80 |
QR |
120 |
5%/3% |
Y |
Y/Y |
SOP7 |
|
|
10W |
≤80 |
QR |
120 |
5%/3% |
Y |
Y/Y |
DIP7 |
|
|
10W |
≤80 |
QR |
120 |
5%/3% |
Y |
Y/Y |
SOP7 |
|
