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Part Name(s) : JT3026 JT3026J ETC
Unspecified
Description : HIGH-PERFORMANCE CURRENT MODE PWM Switching Power Supply CONTROLLER View

Overview:
JT3026 is a HIGH PERFORMANCE peak CURRENT MODE PWM CONTROLLER with innovative patented topology Structure, suitable for forming a simple flyback AC/DC converter Changer. A 700V power switch with HIGH cost PERFORMANCE Tube, PWM control circuit, oscillator, anti-overload protection Saturation and other circuits are integrated into the chip and HIGH prices are used Bipolar production process reduces the products production this. The product is wide in 85VAC to 265VAC input Power up to 12W in voltage range. In the adapter, electricity Wide range of electronic devices such as pool chargers and set-top boxes Applications.

Features:
■ Integrated 700V HIGH voltage power switch tube, no external
   Power tube
■ Built-in slope compensation function to ensure that the output is large
   Stability of the system compared to the situation;
■ Complete the use of the amplification of the internal power tube
   Move, reduce the power consumption of starting resistance;
■ Independent upper CURRENT detection CONTROLLER, real-time processing
   OverCURRENT and overload of the CONTROLLER
■ Undervoltage lockout and overvoltage protection for power supply voltage
■ Integrated thermal protection, ramp CURRENT drive circuit;
■ Built-in temperature-compensated CURRENT limiting resistor,
   Accurate CURRENT limit;
■ Off-period emitter bias voltage output improves PERFORMANCE
   The pressure resistance of the tube;
■ Low starting CURRENT and operating CURRENT
■ Low output power consumption, no output
   power consumption can be lower than 0.35W

Part Name(s) : JT3028ON JT3028Z ETC
Unspecified
Description : HIGH PERFORMANCE CURRENT MODE PWM Switching Power Supply CONTROLLER View

[JINTEK]



Overview:

JT3028ON is a HIGHly integrated, HIGH PERFORMANCE The CURRENT MODE PWM CONTROLLER chip. For electric Source adapter and other small-power switching power supply equipment. In order to reduce the standby power consumption to meet the HIGHer green Environmental standards, the chip provides a pulse MODE (Burst MODE) function. That light load or no load conditions Next, JT3028ON can reduce the linear chip opening Switching frequency, thus reducing the switching loss, for lower Standby power consumption, improve the conversion efficiency of the power system.



Features: 

■ Burst MODE function;

■ Low start-up CURRENT (5uA) and low operating CURRENT

(2.4mA);

■ Internal LEB;

■ Built-in synchronized slope compensation;

CURRENT MODE operation;

■ External programmable PWM switching frequency;

■ External programmable over-temperature protection (OTP);

■-by-cycle CURRENT limit protection (OCP);

■ optional built-in overvoltage protection system VDD(OVP);

■ Low voltage shutdown function (UVLO);

■ gate drive output voltage clamp (17.8V);

■ Constant output power limit;

■ overload protection (OLP); Produces no audio noise

■ work



Application:

Universal switching power supply device and offline AC / DC Anti Flyback power converter:

■ Laptop power adapter;

■ STB power supply;

■ Open switching power supply;

■ Battery Charger



 


Part Name(s) : OB2273 OB2273AP OB2273MP ETC
Unspecified
Description : HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER View

OB2273 is a HIGHly integrated CURRENT MODE PWM control IC optimized for HIGH PERFORMANCE, low standby power and cost effective offline flyback converter applications.





 


Part Name(s) : OB2273 OB2273AP OB2273MP On-Bright
On-Bright Electronics
Description : HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER View

OB2273 is a HIGHly integrated CURRENT MODE PWM control IC optimized for HIGH PERFORMANCE, low standby power and cost effective offline flyback converter applications.





 



Part Name(s) : RM6203 Unspecified
Unspecified
Description : HIGH PERFORMANCE CURRENT MODE PWM Switching Power Supply CONTROLLER View

[REACTOR microelectronics]


DESCRIPTION
The RM6203 is a kind of progressive overload and saturation CURRENT to prevent the function of switching power supply. It provides continuous output power up to 12W in the broad voltage range of 85V – 265V.Its optimized and HIGHly reasonable circuit design has made it possible to minimize the total cost of the product.

FEATURES
•  Built-in 800V HIGH voltage power switching tube with minimal external parts count
• Latched PWM and pulse-by-pulse CURRENT limiting nspection
• Reduced frequency at low output with standby power consumption below 0.25W
•  Built-in slope and feedback compensation function
• Separate upper limit CURRENT inspection CONTROLLER to handle timely the over-CURRENT and overload of the CONTROLLER
• Turn off periodic bias output of the emitter to mprove the voltage resistance of the power tube
•  Built-in thermal protective circuit
• Complete start-up using amplification of the switching power tube to reduce the power consumption of the start-up resistor more than ten times
• Automatic VCC over-voltage limit
• Broad voltage output power up to 12W and narrow voltage output power up to 18W

Part Name(s) : MC44602 MC44602P2 ON-Semiconductor
ON Semiconductor
Description : HIGH PERFORMANCE CURRENT MODE CONTROLLER View

HIGH PERFORMANCE CURRENT MODE CONTROLLER

The MC44602 is an enhanced HIGH PERFORMANCE fixed frequency CURRENT MODE CONTROLLER that is specifically designed for off–line and HIGH voltage dc–to–dc converter applications. This device has the unique ability of changing operating MODEs if the converter output is overloaded or shorted, offering the designer additional protection for increased system reliability.

• Separate HIGH CURRENT Source and Sink Outputs Ideally Suited for Driving Bipolar Power Transistors: 1.0 A Source, 1.5 A Sink
• Unique Overload and Short Circuit Protection
• Thermal Protection
• Oscillator with Sync Input
CURRENT MODE Operation to 500 kHz Output Switching Frequency
• Output Deadtime Adjustable from 50% to 70%
• Automatic Feed Forward Compensation
• Latching PWM for Cycle–By–Cycle CURRENT Limiting
• Input and Reference Undervoltage Lockouts with Hysteresis
• Low Startup and Operating CURRENT

Part Name(s) : UC3845BD UC2843BD101 ST-Microelectronics
STMicroelectronics
Description : HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER View

The UC384xB family of control ICs provides the necessary features to implement off-line or DC to DC fixed frequency CURRENT MODE control schemes with a minimal external parts count. Internally implemented circuits include a trimmed oscillator for precise DUTY CYCLE CONTROL under voltage lock out featuring start-up CURRENT less than 0.5mA, a precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparator which also provides CURRENT limit control, and a totem pole output stage designed to source or sink HIGH peak CURRENT. The output stage, suitable for driving N-Channel MOSFETs, is low in the off state.

Part Name(s) : SC4810B SC4810E SC4810BITSTRT SC4810EITSTRT SC4810BIMLTRT SC4810EIMLTRT Semtech
Semtech Corporation
Description : HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER with Complementary Output, Programmable Delay View

Description
The SC4810B/E is a 16 pin BICMOS primary side PWM CONTROLLER for use in Isolated DC-DC and off-line switching power supplies. It is a HIGHly integrated solution, requiring few external components. It features a HIGH frequency of operation, accurately programmable maximum duty cycle, CURRENT MODE control, line voltage monitoring, supply UVLO, low start-up CURRENT, and programmable soft start with user accessible reference. It operates in a fixed frequency, HIGHly desirable for Telecom applications.

Features
◆ Operation to 1MHz
◆ Accurate programmable maximum duty cycle
◆ Line voltage monitoring
◆ External frequency synchronization
◆ Bi-phase MODE of operation for low ripple
◆ Independent programmable delays
◆ Hiccup MODE CURRENT limit
◆ Under 250µA start-up CURRENT
◆ Programmable maximum volt-second clamp
◆ Accessible reference voltage
◆ VDD undervoltage lockout
◆ -40°C to 105°C operating temperature
◆ 16 lead TSSOP or MLPQ lead free packages. Both fully WEEE and RoHS compliant

Applications
◆ Telecom equipment and power supplies
◆ Networking power supplies
◆ Power over LAN applications
◆ Industrial power supplies
◆ Isolated power supplies
◆ VoIP phones

Part Name(s) : SW2604 ETC
Unspecified
Description : HIGH PERFORMANCE CURRENT MODE PWM switching power supply CONTROLLER View

SW2604 bipolar process, the built-in overload prevention, anti-saturation circuit to meet the environmental protection standards of the switching power supply CONTROLLER; to improve the consistency of the PERFORMANCE parameters of the circuit, the internal reference voltage specially designed to improve the internal reference voltage accuracy. Using wide power (85 - 265) design, typical output power 12W, maximum output power up to 15W, 18W peak output power.



 




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