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SMD IC
UC 3846N
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.
Features
• 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 OperationDatasheet
SKU: n/a -
DIP IC
UC 3842
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.
Features
• 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 resistanceApplications
- Switching regulators of any polarity
- Transformer-coupled DC-DC converters
Datasheet
SKU: n/a -
SMD IC
UC 3845
- 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.
Features
- Fixed Frequency Current-Mode PWM Controller
- Trimmed Oscillator Discharge Current for Precise Duty Cycle Control
- Current Mode Operation to 500 kHz
- Automatic Feed Forward Compensation
- Latching PWM for Cycle−By−Cycle Current Limiting
- Internally Trimmed Reference with Under voltage Lockout
- High Current Totem Pole Output
- Under voltage Lockout with Hysteresis
- Low Startup and Operating Current
Applications
- Switch Mode Power Supplies (SMPS)
- DC-DC Converters
- Power Modules
- Industrial PSU
- Battery Operated PSU
Datasheet
SKU: n/a - 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.
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DIP IC
UC 3845
- 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.
Features
- Fixed Frequency Current-Mode PWM Controller
- Trimmed Oscillator Discharge Current for Precise Duty Cycle Control
- Current Mode Operation to 500 kHz
- Automatic Feed Forward Compensation
- Latching PWM for Cycle−By−Cycle Current Limiting
- Internally Trimmed Reference with Under voltage Lockout
- High Current Totem Pole Output
- Under voltage Lockout with Hysteresis
- Low Startup and Operating Current
Applications
- Switch Mode Power Supplies (SMPS)
- DC-DC Converters
- Power Modules
- Industrial PSU
- Battery Operated PSU
Datasheet
SKU: n/a - 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.
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Fast Recovery Diode
1N5819
The 1N5819 is a Schottky diode known for its fast recovery time and low forward voltage drop characteristics. It belongs to the family of semiconductor devices designed to provide efficient rectification and voltage clamping in various electronic circuits.
Datasheet
SKU: n/a -
Fast Recovery Diode
FR-104
The FR104 diode is a fast switching diode, with a continuous reverse voltage rating of 400V and is suitable for forward currents of up to 1A, the reverse recovery time is 150ns. The FR104 diode is ideal for use in linear and switched voltage converter circuits.
Datasheet
SKU: n/a -
DIP IC
UC 3846N
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.
Features
• 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 OperationDatasheet
SKU: n/a -
IGBT
40T60
The 40T60 IGBT is a type of Insulated Gate Bipolar Transistor commonly used in welding machines for efficient power switching and control. It combines high-speed switching capabilities with the ability to handle high currents, making it suitable for various welding applications.
Features
• Very low VCE(sat) 1.5 V (typ.)
• Maximum Junction Temperature 175 °C
• Short circuit withstand time – 5µs
• TrenchStop®
and Fieldstop technology for 600 V applications
offers :
– very tight parameter distribution
– high ruggedness, temperature stable behavior
– low VCE(sat)
• Positive temperature coefficient in VCE(sat)
• Low EMI
• Low Gate Charge
• Qualified according to JEDEC for target applications
• Pb-free lead plating; RoHS compliant
• Complete product spectrum and PSpice ModelsApplications
• Inductive Cooking
• Soft Switching ApplicationsDatasheet
SKU: n/a
