SMD IC
Showing all 9 results
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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 -
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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SMD IC
L7815-3Pin
Features
• No External Components Required
• Internal Thermal Overload Protection
• Internal Short Circuit Current Limiting
• Output Transistor Safe−Area Compensation
• 78M15 High Accuracy (±2%) Available for 5.0 V, 8.0 V, 12 V and 15 V
• These are Pb−Free Devices
Datasheet
SKU: n/a -
SMD IC
L7812-3Pin
The L78 series offers versatile three-terminal positive regulators in various packages and fixed output voltages, suitable for diverse applications. These regulators enable on-card regulation, addressing distribution challenges. They feature internal current limiting, thermal shut-down, and safe area protection, ensuring robust performance. With proper heat sinking, they support over 1 A output current. While primarily fixed voltage regulators, they can also accommodate external components for adjustable voltage and currents.
Features
• Output current up to 1.5 A
• Output voltages of 5; 6; 8; 8.5; 9; 12; 15; 18; 24 V
• Thermal overload protection
• Short circuit protection
• Output transition SOA protection
• 2 % output voltage tolerance (A version)
• Guaranteed in extended temperature range (A version)Datasheet
SKU: n/a -
SMD IC
L7805-3Pin
The 7805 is a three-terminal linear voltage regulator IC that outputs a stable +5V across various input voltages. Renowned for its versatility, it’s a popular choice in many projects. Its name “7805” indicates its role as a positive voltage regulator, delivering a consistent 5V output. This makes the 7805 a reliable source of +5V voltage.
Features
• Output Current up to 0.5A
• Output Voltages of 5, 6, 8, 12, 15, 18, 24V
• Thermal Overload Protection
• Short Circuit Protection
• Output Transistor Safe Operating Area (SOA)Protection
Datasheet
SKU: n/a -
SMD IC
UC 3843
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.
Features
• Low Start up Current
• Maximum Duty Clamp
• UVLO With Hysteresis
• Operating Frequency up to 500KHzDatasheet
SKU: n/a -
SMD 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
CA 3140
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.
Features
- MOSFET Input Stage
- Very High Input Impedance (ZIN): 1.5TΩ (Typ)
- Very Low Input Current (Il): 10pA (Typ) at ±15V
- Wide Common Mode Input Voltage Range (VlCR): Can be Swung 0.5V Below Negative Supply Voltage Rail
- Output Swing Complements Input Common Mode Range
- Directly Replaces Industry Type 741 in Most Applications
- Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• Ground-Referenced Single Supply Amplifiers in Automobile and Portable Instrumentation
• Sample and Hold Amplifiers
• Long Duration Timers/Multivibrators(microseconds-Minutes-Hours)
• Photocurrent Instrumentation
• Peak Detectors
• Active Filters
• Comparators
• Interface in 5V TTL Systems and Other Low Supply Voltage Systems
• All Standard Operational Amplifier Applications
• Function Generators
• Tone Controls
• Power Supplies
• Portable Instruments
• Intrusion Alarm SystemsDatasheet
SKU: n/a - MOSFET Input Stage
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SMD IC
LM 358
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.
Features
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 CompliantDatasheet
SKU: n/a
