The LinkSwitchTM-CV redefines low-power constant voltage (CV) converter design with its innovative control technique, eliminating the need for an optocoupler and secondary CV control circuitry while ensuring precise output voltage regulation. Leveraging proprietary IC trimming and E-Shield™ transformer construction methods, the LinkSwitch-CV LNK623/4 enables Clampless™ designs.
It excels in cross-regulation for multi-output flyback applications like DVDs and STBs, integrating a 725 V power MOSFET, ON/OFF control state machine, self-biasing, frequency jittering, cycle-by-cycle current limit, and hysteretic thermal shutdown circuitry onto a single IC. This integration minimizes complexity and boosts performance, making it an ideal choice for demanding applications.
• DVD/STB
• Adapters
• Standby and auxiliary supplies
• Home appliances, white goods and consumer electronics
• Industrial controls
The CA3140A and CA3140 are integrated circuit operational amplifiers combining high voltage PMOS and bipolar transistors in a single chip. They offer high input impedance, low input current, and fast performance. With a supply voltage range of 4V to 36V, they’re internally compensated for stable operation in unity gain follower mode. They feature an access terminal for external capacitor frequency roll-off and input offset voltage nulling. Their PMOS input stage allows for common-mode input voltage down to 0.5V below the negative supply terminal, suitable for single supply applications. The output stage includes bipolar transistors and built-in protection against load short-circuiting. Designed for up to 36V operation, they’re versatile for various high-voltage applications.
The UC3856N is a type of integrated circuit (IC) housed in a Dual In-line Package (DIP). It’s designed for high-performance power supply applications and is particularly noted for its ability in controlling and driving switch-mode power supplies. This IC integrates multiple features to manage and enhance power supply operations, such as voltage and current regulation, under-voltage lockout, over-current protection, and soft-start capability to prevent sudden surges in power.
• Automatic Feed Forward Compensation
• Programmable Pulse by Pulse Current Limiting
• Automatic Symmetry Correction in Push-Pull
Configuration
• Enhanced Load Response Characteristics
• Parallel Operation Capability for Modulator Power
Systems
• Differential Current Sense Amplifier with Common Mode
Range
• Double Pulse Suppression
• 200mA Totem-Pole Outputs
• ±2% Band gap Reference
• Under-Voltage Lockout
• Soft-Start Capability
• Shutdown Terminal
• 500KHz Operation
The UCx84x series of control integrated circuits offers a comprehensive solution for implementing off-line or DC-to-DC fixed-frequency current-mode control schemes with minimal external components. Featuring internal circuits such as undervoltage lockout, precision reference, and PWM comparator, along with customizable options for package, temperature range, and hysteresis, these devices provide versatility and reliability for a wide range of power management applications.
• Optimized for off-line and DC-to-DC converters
• Low start-up current (< 1 mA)
• Automatic feedforward compensation
• Pulse-by-pulse current limiting
• Enhanced load-response characteristics
• Undervoltage lockout with hysteresis
• Double-pulse suppression
• High-current totem-pole output
• Internally trimmed bandgap reference
• Up to 500-kHz operation
• Error amplifier with low output resistance
The SS series represents a highly efficient, low power loss general-purpose Schottky rectifier. Its clip-bonded leg structure offers excellent thermal performance and minimal electrical resistance. This rectifier is ideally suited for applications such as freewheeling, secondary rectification, and reverse polarity protection.
• Low profile package
• Ideal for automated placement
• Guardring for overvoltage protection
• Low power losses, high efficiency
• Low forward voltage drop
• High surge capability
• Meets MSL level 1, per J-STD-020,LF maximum peak of 260 °C
• AEC-Q101 qualified available- Automotive ordering code: base P/NHE3 or P/NHM3
The SS series represents a highly efficient, low power loss general-purpose Schottky rectifier. Its clip-bonded leg structure offers excellent thermal performance and minimal electrical resistance. This rectifier is ideally suited for applications such as freewheeling, secondary rectification, and reverse polarity protection.
• Low profile package
• Ideal for automated placement
• Guardring for overvoltage protection
• Low power losses, high efficiency
• Low forward voltage drop
• High surge capability
• Meets MSL level 1, per J-STD-020,LF maximum peak of 260 °C
• AEC-Q101 qualified available- Automotive ordering code: base P/NHE3 or P/NHM3
The FIREWELD 30 Amp ON/Off Switch for Welding Machines in Red is an exceptional solution for those seeking absolute command over their welding equipment. With its top-notch construction, space-saving design, and user-friendly operation, this switch is an indispensable addition to any workshop or welding setup. Don’t delay – acquire your FIREWELD 30 Amp ON/Off Switch today and experience the convenience of complete control over your welding operations.
The FIREWELD 30 Amp ON/Off Switch for Welding Machines in Red is an exceptional solution for those seeking absolute command over their welding equipment. With its top-notch construction, space-saving design, and user-friendly operation, this switch is an indispensable addition to any workshop or welding setup. Don’t delay – acquire your FIREWELD 30 Amp ON/Off Switch today and experience the convenience of complete control over your welding operations.
The FIREWELD 40 Amp ON/Off Switch for Welding Machines in Red is an exceptional solution for those seeking absolute command over their welding equipment. With its top-notch construction, space-saving design, and user-friendly operation, this switch is an indispensable addition to any workshop or welding setup. Don’t delay – acquire your FIREWELD 40 Amp ON/Off Switch today and experience the convenience of complete control over your welding operations.
Based on Quad Operational Amplifier designs, these dual operational amplifiers offer low power consumption, a wide common mode input voltage range, and compatibility with single or split supply operation. The LM358 series is equivalent to half of an LM324. In single supply applications, they outperform standard operational amplifiers by operating within a voltage range of 3.0V to 32V with one-fifth the quiescent current of the MC1741 per amplifier. Additionally, their common mode input range includes the negative supply, eliminating the need for external biasing components, and their output voltage range includes the negative power supply voltage.
Short Circuit Protected Outputs
• True Differential Input Stage
• Single Supply Operation: 3.0 V to 32 V
• Low Input Bias Currents
• Internally Compensated
• Common Mode Range Extends to Negative Supply
• Single and Split Supply Operation
• ESD Clamps on the Inputs Increase Ruggedness of the Device without Affecting Operation
• NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant
The CA3140A and CA3140 are integrated circuit operational amplifiers combining high voltage PMOS and bipolar transistors on a single chip. These BiMOS amplifiers feature gate-protected PMOS transistors in the input circuit, ensuring high input impedance, low input current, and fast performance. They operate within a 4V to 36V supply voltage range for single and dual supply setups. Internally phase-compensated, they provide stable unity gain follower operation and offer access terminals for additional frequency roll-off with external capacitors. With PMOS transistors in the input stage, they support common mode input voltage down to 0.5V below the negative supply terminal, ideal for single supply applications. The output stage includes built-in protection against load terminal short-circuiting. Rated for operation up to ±18V, they serve various high-voltage applications efficiently.
Modeling, Analysis, and Compensation of Current-Mode Converters addresses challenges in fixed-frequency, peak-current detecting schemes like instability beyond 50% duty cycle and subharmonic oscillation.UC3856, a high-performance alternative to UC3846, offers increased speed and gate-drive current with minimal circuit adjustments.U-93, a novel integrated circuit, provides advantages over conventional PWM approaches, including automatic feed-forward, symmetry correction, inherent current-limiting, simple loop-compensation, and enhanced load-response.
• Automatic Feed Forward Compensation
• Programmable Pulse by Pulse Current Limiting
• Automatic Symmetry Correction in Push-Pull
Configuration
• Enhanced Load Response Characteristics
• Parallel Operation Capability for Modulator Power
Systems
• Differential Current Sense Amplifier with Common Mode
Range
• Double Pulse Suppression
• 200mA Totem-Pole Outputs
• ±2% Band gap Reference
• Under-Voltage Lockout
• Soft-Start Capability
• Shutdown Terminal
• 500KHz Operation
The UCx84x series of control integrated circuits offers a comprehensive solution for implementing off-line or DC-to-DC fixed-frequency current-mode control schemes with minimal external components. Featuring internal circuits such as undervoltage lockout, precision reference, and PWM comparator, along with customizable options for package, temperature range, and hysteresis, these devices provide versatility and reliability for a wide range of power management applications.
• Optimized for off-line and DC-to-DC converters
• Low start-up current (< 1 mA)
• Automatic feedforward compensation
• Pulse-by-pulse current limiting
• Enhanced load-response characteristics
• Undervoltage lockout with hysteresis
• Double-pulse suppression
• High-current totem-pole output
• Internally trimmed bandgap reference
• Up to 500-kHz operation
• Error amplifier with low output resistance
The UC3842/UC3843/UC3844/UC3845 are fixed-frequency current-mode PWM controllers designed for Off-Line and DC to DC converter applications with minimal external components. They feature a trimmed oscillator for precise duty cycle control, a temperature-compensated reference, high-gain error amplifier, current sensing comparator, and a high-current totem-pole output for driving a Power MOSFET.
UC3842 and UC3844 have UVLO thresholds of 16V (on) and 10V (off), while UC3843 and UC3845 are 8.5V (on) and 7.9V (off). UC3842 and UC3843 can operate within a 100% duty cycle, while UC3844 and UC3845 operate with a 50% duty cycle.
• Low Start up Current
• Maximum Duty Clamp
• UVLO With Hysteresis
• Operating Frequency up to 500KHz
CA 3140 
UC 3846N 
YELLOW Switch-30amp 
UC 3842 
SS-16 
YELLOW Switch-40amp 
