| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Number of Pins | 8 Pin |
| Supply Voltage (DC) | 8.50V (min) |
| Case/Package | SOIC-8 |
| Number of Outputs | 2 Output |
| Output Current | 0.001 A |
| Number of Positions | 8 Position |
| Power Dissipation | 650 mW |
| Number of Regulated Outputs | 2 Output |
| Rise Time | 28 ns |
| Switching Frequency | 1 MHz |
| Duty Cycle | 50 % |
| Output Current (Max) | 1 A |
| Maximum Duty Cycle | 0.5 |
| Fall Time | 13 ns |
| Operating Temperature (Max) | 105 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Power Dissipation (Max) | 650 mW |
| Supply Voltage | 8.5V ~ 14V |
| Supply Voltage (Max) | 14 V |
| Supply Voltage (Min) | 8.5 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Cut Tape (CT) |
| Size-Length | 4.9 mm |
| Size-Width | 3.91 mm |
| Size-Height | 1.58 mm |
| Operating Temperature | -40℃ ~ 105℃ |
The UCC28089D is a versatile BiCMOS Controller for DC to DC or off-line fixed-frequency switching power supplies. The UCC28089 has dual alternating output stages in dual-alternating push-pull configuration. Both outputs switch at half the oscillator frequency using a toggle flip-flop and duty cycle is limited to less than 50%. It is optimized for use as the primary-side companion controller for a cascaded converter that has secondary-side control. The device incorporates dead-time programming. The synchronization output also provides dead-time information. The retry and soft-start duration scales with the oscillator clock frequency for high performance fault recovery. It also provides primary side under-voltage protection (UVLO) and over-current protection. Both the soft start and retry after fault durations scale with oscillator frequency for high performance. The turn-on/off UVLO thresholds are 10.5/8V.
● Push-pull oscillator with programmable deadtime
● Can be used in push-pull, half-bridge, or full-bridge topologies
● Oscillator synchronization output
● Over-current shutdown
● Digitally controlled over-current/retry feature
● Undervoltage lockout with hysteresis
● Green product and no Sb/Br
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PRIMARY-SIDE PUSH-PULL OSCILLATOR WITH DEAD-TIME CONTROL
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TEXAS INSTRUMENTS UCC28089D. DC-DC Controller, Primary Side, 8.5V to 14V, 1 Output, Buck, 1MHz, SOIC-8
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TEXAS INSTRUMENTS UCC28089DR MOSFET Driver, 2Outputs, Half Bridge and Full Bridge, 8.5V-14V supply, 1A and 80Ω output, SOIC-8
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Primary Side PWM Controller 1MHz 2Out 8Pin SOIC T/R
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Primary Side PWM Controller 1MHz 2Out 8Pin SOIC Tube
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PRIMARY-SIDE PUSH-PULL OSCILLATOR WITH DEAD-TIME CONTROL
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PRIMARY-SIDE PUSH-PULL OSCILLATOR WITH DEAD-TIME CONTROL
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