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UCC28730DR, SOIC-7 AC-DC Controllers & Regulators
UCC28730/UCC28730-Q1 PSR Flyback Controller
Texas Instruments UCC28730/UCC28730-Q1 Zero Standby PSR Flyback Controller provides Constant-Voltage (CV) and Constant-Current (CC) output regulation without the use of an optical coupler, and signal detection to improve transient response to large load steps. A minimum switching frequency of 30Hz facilitates achieving less than 5mW of no-load power. This device processes information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current. The monitoring works with a secondary-side alarm device such as the UCC24650 to deliver rapid response to heavy load steps using minimal output capacitance. An internal 700V start-up switch, dynamically-controlled operating states and a tailored modulation profile support ultra-low stand-by power without sacrificing start-up time or output transient response. Control algorithms in the UCC28730/UCC28730-Q1 allow operating efficiencies to meet or exceed applicable standards. Discontinuous conduction mode (DCM) operation with valley-switching reduces switching losses. Modulation of the switching frequency and primary current peak amplitude (FM and AM) keeps the conversion efficiency high across the entire load and line ranges. The UCC28730-Q1 devices are AEC-Q100 qualified for automotive applications.
| Brand | Texas Instruments |
| Duty Cycle - Max | 99% |
| Factory Pack Quantity: Factory Pack Quantity | 2500 |
| Input / Supply Voltage - Max | 35 V |
| Input / Supply Voltage - Min | 9 V |
| Isolation | Isolated |
| Manufacturer | Texas Instruments |
| Maximum Operating Temperature | +125 C |
| Minimum Operating Temperature | -40 C |
| Mounting Style | SMD/SMT |
| Number of Outputs | 1 Output |
| Operating Supply Current | 2.1 mA |
| Output Current | 29 mA |
| Output Voltage | 14 V |
| Package / Case | SOIC-7 |
| Product Category | AC/DC Converters |
| Product Type | AC/DC Converters |
| Product | Power Switches |
| Series | UCC28730 |
| Subcategory | PMIC-Power Management ICs |
| Switching Frequency | 83 kHz |
| Topology | Flyback |
| Type | CV/CC Switcher |
| Вес, г | 0.12 |
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