Texas Instruments
UC3827DW-1
UC3827DW-1
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UC3827DW-1 Texas Instruments - Yeehing Electronics
Buck current Fed push-pull PWM controller, 0°C to 70°C
Pricing (USD)
| Quantity | Unit Price |
| 1 — 99 | 6.291 |
| 100 — 249 | 5.129 |
| 250 — 999 | 4.031 |
| 1,000 + | 2.39 |
The above prices are for reference only.
Specifications
| Manufacturer | Texas Instruments |
| Product Category | Switching Controllers |
| RoHS | Y |
| Topology | Buck |
| Number of Outputs | 3 Output |
| Switching Frequency | 450 kHz |
| Duty Cycle - Max | 50 % |
| Output Current | 1 A |
| Minimum Operating Temperature | 0 C |
| Maximum Operating Temperature | + 70 C |
| Mounting Style | SMD/SMT |
| Package / Case | SOIC-24 |
| Packaging | Tube |
| Operating Temperature Range | 0 C to + 70 C |
| Series | UC3827-1 |
| Type | Current Mode PWM Controllers |
| Brand | Texas Instruments |
| Fall Time | 30 ns |
| Moisture Sensitive | Yes |
| Product Type | Switching Controllers |
| Rise Time | 40 ns |
| Factory Pack Quantity | 25 |
| Subcategory | PMIC - Power Management ICs |
| Unit Weight | 0.023919 oz |
For more information, please refer to datasheet
Documents
| UC3827DW-1 Datasheet |
More Information
The UC3827 family of controller devices provides an integrated control solution for cascaded buck and push-pull converters. These converters are known as current fed or voltage fed push-pull converters and are ideally suited for multiple output and/or high voltage output applications. In both current fed and voltage fed modes, the push-pull switches are driven at 50% nominal duty cycles and at one half the switching frequency of the buck stage. In the current fed mode, the two switches are driven with a specified over-lap period to prevent ringing and voltage stress on the devices. In the voltage fed mode, the two switches are driven with a specified gap time between the switches to prevent shorting the transformer across the energy storage capacitor and to prohibit excessive currents flowing through the devices.
