UC3843AN
| Parameters | |
|---|---|
| Factory Lead Time | 1 Week |
| Lifecycle Status | ACTIVE (Last Updated: 1 day ago) |
| Mounting Type | Through Hole |
| Package / Case | 8-DIP (0.300, 7.62mm) |
| Surface Mount | NO |
| Number of Pins | 8 |
| Weight | 528.605208mg |
| Operating Temperature | 0°C~70°C TA |
| Packaging | Tube |
| JESD-609 Code | e4 |
| Pbfree Code | yes |
| Part Status | Active |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Number of Terminations | 8 |
| Termination | Through Hole |
| ECCN Code | EAR99 |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Subcategory | Switching Regulator or Controllers |
| Max Power Dissipation | 1W |
| Technology | BIPOLAR |
| Terminal Position | DUAL |
| Supply Voltage | 11V |
| Terminal Pitch | 2.54mm |
| Frequency | 450kHz |
| Base Part Number | UC3843 |
| Function | Step-Up, Step-Down, Step-Up/Step-Down |
| Number of Outputs | 1 |
| Output Voltage | 15V |
| Output Type | Transistor Driver |
| Max Output Current | 4A |
| Input Voltage-Nom | 15V |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Output Configuration | Positive |
| Power Dissipation | 1W |
| Output Current | 1A |
| Voltage - Supply (Vcc/Vdd) | 7.6V~30V |
| Quiescent Current | 11mA |
| Control Features | Frequency Control |
| Topology | Boost, Buck, Buck-Boost, Flyback, Forward |
| Control Mode | CURRENT-MODE |
| Frequency - Switching | Up to 500kHz |
| Max Input Voltage | 25V |
| Control Technique | PULSE WIDTH MODULATION |
| Rise Time | 50ns |
| Supply Current-Max (Isup) | 25mA |
| Synchronous Rectifier | No |
| Fall Time (Typ) | 50 ns |
| Nominal Input Voltage | 15V |
| Max Duty Cycle | 100 % |
| Input Current | 11mA |
| Duty Cycle (Max) | 96% |
| Height | 5.08mm |
| Length | 9.81mm |
| Width | 6.35mm |
| Thickness | 3.9mm |
| REACH SVHC | No SVHC |
| RoHS Status | ROHS3 Compliant |
| Lead Free | Lead Free |
UC3843AN Description
The UC3843AN family of control ICs is an enhanced version of the UC3843AN family that is pin-for-pin compatible. This class of devices has numerous improved characteristics, including the ability to regulate current mode or switched-mode power supply. The output stage can sink at least 10 mA at less than 1.2 V for VCC above 5 V during UVLO, while the oscillator discharge is cut to 8.3 mA during startup.
UC3843AN Features
? Compensation for Feedforward is done automatically.
? Current Limiting on a Pulse-by-Pulse Basis
? Load Response Characteristics that are Improved
? Hysteresis Undervoltage Lockout
? Pulse Suppression on Both Sides
? Totem Pole Output with a High Current
? Bandgap Reference with Internal Trimming
? Operation up to 500 kHz
UC3843AN Applications
? Power Supplies with Switching Modes (SMPS)
? DC-DC Converters (DC-DC Converters)
? Energy Modules
? Power supply for industry
? PSU that runs on batteries
