Produkte > Integrierte Schaltungen (ICs) > CM6800TX

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  • DIP-16
  • Produkt der Kategorien :
  • Integrierte Schaltungen (ICs)
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  • Lead free / RoHS Compliant
  • Markierungscode:
  • CM6800TX
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  • 612


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CM6800TX Beschreibung

http://w w w. championmicro CM6800T (Turbo-Speed PFC+Green PWM) EPA/85+ PFC+PWM COMBO CONTROLLER Design for High Efficient Power Supply GENERAL DESCRIPTION CM6800T is a turbo-speed PFC and a Green PWM controller. It is designed to further increase power supply efficiency while using the relatively lower 380V Bulk Capacitor value. Switching to CM6800T from your existing CM6800 family boards can gain the following advanced performances: 1.) Hold Up time can be increased ~ 30% from the existing 6800 power supply 2.) Turbo Speed PFC may reduce 420 Bulk Capacitor size 3.) 420V bulk capacitor value may be reduced and PFC Boost Capacitor ripple current can be reduced 4.) No Load Consumption can be reduced 290mW at 270VAC 5.) Better Power Factor and Better THD 6.) Clean Digital PFC Brown Out 7.) PWM transformer size can be smaller 8.) Superior Surge Noise Immunity 9.) To design 12V, 5V, and 3.3V output filters can be easy 10.) The stress over the entire external power device is reduced and EMI noise maybe reduced; PFC inductor core might be reduced 11.) Monotonic Output design is easy 12.) And more… Of course, the cost can be reduced CM6800T is pin to pin compatible with CM6800 family. Beside all the goodies in the CM6800, it is designed to meet the EPA/85+ regulation. With the proper design, its efficiency of power supply can easily approach 85%. To start evaluating CM6800T from the exiting CM6800, CM6800A, or ML4800 board, 6 things need to be taken care before doing the fine tune: 1.) Change RAC resistor (on pin 2, IAC) from the old value to a higher resistor value between 4.7 Mega ohm to 8 Mega ohm. Start with 6 Mega ohm for RAC first. 2.) Change RTCT pin (pin 7) from the existing value to RT=5.88K ohm and CT=1000pF to have fpfc=68Khz, fpwm=68Khz, frtct=272Khz for CM6800T 3.) Adjust all high voltage resistor around 5 mega ohm or higher. 4.) VRMS pin(pin 4) needs to be 1.14V at VIN=80VAC for universal input application from line input from 80VAC to 270VAC. 5.) At full load, the average Veao needs to around 4.5V and the ripple on the Veao needs to be less than 250mV when the load triggers the light load comparator. 6.) Soft Start pin (pin 5), the soft start current has been reduced from CM6800’s 20uA to CM6800T’s 10uA.Soft Start capacitor can be reduced to 1/2 from your original CM6800 capacitor. FEATURES ‹ Patents Pending ‹ Pin to pin compatible with CM6802 family, CM6800 family, and ML4800 family ‹ 23V Bi-CMOS process ‹ Designed for EPA/85+ efficiency ‹ Digitized Exactly 50% Maximum PWM Duty Cycle ‹ All high voltage resistors can be greater than 4.7 Mega ohm (4.7 Mega to 8 Mega ohm) to improve the no load consumption ‹ Rail to rail CMOS Drivers with on, 60 ohm and off, 30 ohm for both PFC and PWM with two 17V zeners ‹ Fast Start-UP Circuit without extra bleed resistor to aid VCC reaches 13V sooner ‹ Low start-up current (55uA typ.) ‹ Low operating current (2.5mA typ.) ‹ 16.5V VCC shunt regulator ‹ Leading Edge Blanking for bot




The CM6800/1 is a controller for power factor corrected, switched mode power suppliers. Power Factor Correction (PFC) allows the use of smaller, lower cost bulk capacitors, reduces power line loading and stress on the switching FETs, and results in a power supply that fully compiles with IEC-1000-3-2 specifications. Intended as a BiCMOS version of the industry-standard ML4824, CM6800/1 includes circuits for the implementation of leading edge, average current, “boost” type power factor correction and a trailing edge, pulse width modulator (PWM). Gate-driver with 1A capabilities minimizes the need for external driver circuits. Low power requirements improve efficiency and reduce component costs.  

An over-voltage comparator shuts down the PFC section in the event of a sudden decrease in load. The PFC section also includes peak current limiting and input voltage brownout protection. The PWM section can be operated in current or voltage mode, at up to 250kHz, and includes an accurate 50% duty cycle limit to prevent transformer saturation

The only difference between CM6800 and CM6801 is that CM6800 includes an additional folded-back current limit for PWM section to provide short circuit protection function.  

◆ Patent Number #5,565,761, #5,747,977, #5,742,151,#5,804,950, #5,798,635
Pin to pin compatible with ML4800 and FAN6800
Additional folded-back current limit for PWM section.
◆ 23V Bi-CMOS process
◆ VIN OK guaranteed turn on PWM at 2.5V instead of 1.5V
◆ Internally synchronized leading edge PFC and trailing edge PWM in one IC
◆ Slew rate enhanced transconductance error amplifier for ultra-fast PFC response
Low start-up current (100µ A typ.)
Low operating current (3.0mA type.)
Low total harmonic distortion, high PF
Reduces ripple current in the storage capacitor between the PFC and PWM sections
Average current, continuous or discontinuous boost leading edge PFC
VCC OVP Comparator, Low Power Detect Comparator
PWM configurable for current mode or voltage mode operation
Current fed gain modulator for improved noise immunity
Brown-out control, over-voltage protection, UVLO, and softstart, and Reference OK

Desktop PC Power Supply
Internet Server Power Supply
IPC Power Supply
Battery Charger
DC Motor Power Supply
Monitor Power Supply
Telecom System Power Supply
Distributed Power 


CM6800TX Pinout
(Bild: Pinout)

CM6800TX Block Diagram
(Bild: Diagram)

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    90 Tage Qualitätsgarantie für alle Produkte.


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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

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1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that CM6800TX is the original manufacturer or agent of CHAMPION?
We have a professional business development department to strictly test and verify the qualifications of CHAMPION original manufacturers and agents. All CHAMPION suppliers must pass the qualification review before they can publish their CM6800TX devices; we pay more attention to the channels and quality of CM6800TX products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of CM6800TX chips? Including CHAMPION original factory information, application, CM6800TX pictures?
You can use Jotrin's intelligent search engine, or filter by Integrierte Schaltungen (ICs) category, or find it through CHAMPION brand manufacturer page.
Q: Are the CHAMPION's CM6800TX price and stock displayed on the platform accurate?
The CHAMPION's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for CM6800TX, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
Q: What forms of payment can I use in Jotrin?
TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of CM6800TX?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the CM6800TX we delivered, we will accept the replacement or return of the CM6800TX only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of CM6800TX.
(3)The CM6800TX is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as CM6800TX datasheet pdf, CM6800TX pin diagram?
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