| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Frequency | 1 MHz |
| Number of Pins | 28 Pin |
| Supply Voltage (DC) | 11.0V (min) |
| Case/Package | SOIC-28 |
| Number of Outputs | 4 Output |
| Input Voltage (DC) | 20.0 V |
| Output Voltage | 5.08 V |
| Output Current | 500 mA |
| Number of Positions | 28 Position |
| Switching Frequency | 1000 kHz |
| Duty Cycle | 100 % |
| Maximum Duty Cycle | 100 % |
| Operating Temperature (Max) | 70 ℃ |
| Operating Temperature (Min) | 0 ℃ |
| Supply Voltage (Max) | 20 V |
| Supply Voltage (Min) | 11 V |
| Input Voltage | 20 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tube |
| Size-Length | 18 mm |
| Size-Height | 2.35 mm |
| Operating Temperature | 0℃ ~ 70℃ (TA) |
The UC3875DWPG4 is a Phase Shift Resonant Controller implements control of a bridge power stage by phase-shifting the switching of one half-bridge with respect to the other, allowing constant frequency pulse-width modulation in combination with resonant, zero-voltage switching for high efficiency performance at high frequencies. This family of circuits may be configured to provide control in either voltage or current-mode operation, with a separate over-current shutdown for fast fault protection. A programmable time delay is provided to insert a dead-time at the turn-on of each output stage. This delay, providing time to allow the resonant switching action, is independently controllable for each output pair. With the oscillator capable of operation at frequencies in excess of 2MHz, overall switching frequencies to 1MHz are practical.
● Programmable output turn-on delay
● Compatible with voltage or current mode topologies
● Four 2A Totem pole outputs
● 10MHz Error amplifier
● Undervoltage lockout
● Outputs active low during UVLO
● Soft-start control latched over-current comparator with full cycle restart
● Trimmed reference
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