| TYPE | DESCRIPTION |
|---|
| Mounting Style | Through Hole |
| Frequency | 0.2 MHz |
| Number of Pins | 8 Pin |
| Supply Voltage (DC) | 5.00V (min) |
| Case/Package | DIP-8 |
| Number of Outputs | 1 Output |
| Number of Channels | 1 Channel |
| Number of Positions | 8 Position |
| Power Dissipation | 1.00 W |
| Switching Frequency | 200 kHz |
| Duty Cycle | 95 % |
| Input Voltage (Max) | 10 V |
| Output Voltage (Max) | 2.5 V |
| Output Current (Max) | 1 A |
| Operating Temperature (Max) | 70 ℃ |
| Operating Temperature (Min) | 0 ℃ |
| Supply Voltage | 14.5V ~ 30V |
| Supply Voltage (Max) | 30 V |
| Supply Voltage (Min) | 5 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Each |
| Operating Temperature | 0℃ ~ 70℃ |
The UC3852NG4 is a high Power Factor Preregulator provides active power-factor correction for systems that would otherwise draw high peak current pulses from AC power lines. This circuit implements zero-current switched boost conversion, producing sinusoidal input currents with a minimum of external components, while keeping peak current substantially below that of fully-discontinuous converters. It provides controlled switch on-time to regulate the output bulk DC voltage, an off-time defined by the boost inductor and a zero-current sensing circuit to reactivate the switch cycle. Even though switching frequency varies with both load and instantaneous line voltage, it can be maintained within a reasonable range to minimize noise generation. While allowing higher peak switch currents than continuous PFCs such as the pre-regulator, this device offers less external circuitry and smaller inductors, yet better performance and easier line-noise filtering than discontinuous current PFCs.
● >0.99 Power factor
● Few external parts required
● Controlled on-time boost PWM
● Zero-current switching
● Limited peak current
● Minimum and maximum frequency limits
● <1mA Starting current
● High-current FET drive output
● Under-voltage lockout
● Green product and no Sb/Br
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TEXAS INSTRUMENTS UC3852NG4 PFC Controller IC, 5V to 30V & 6mA Supply, 5V Lockout, 95% Duty Cycle, 0.2MHz, DIP-8
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Power Factor Correction PREREGUL 0.4mA 8Pin SOIC Tube
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Power Factor Controller, Current-mode, 1A, 250kHz Switching Freq-Max, BIPolar, PDSO8,
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