UCC28730D Semiconductors - ICs by Texas Instruments

AC/DC CONVERTER FLYBACK SOIC-7

Electronic & Electrical Components>Semiconductors - ICs>Power Management
Status: Unknown
Series: -
RoHS: Unknown
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The UCC28730 isolated-flyback power supply controller provides Constant-Voltage (CV) and Constant-Current (CC) output regulation without the use of an optical coupler, and wake-up signal detection to improve transient response to large load steps. A minimum switching frequency of 30 Hz facilitates achieving less than 5 mW 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 wake-up 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 700-V start-up switch, dynamicallycontrolled 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 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.
Distributor Price Stock
Logo for Texas Instruments Texas Instruments US$1.37
39,573
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Specifications

Input Voltage AC Min 85V
Input Voltage AC Max 265V
AC / DC Converter Case Style SOIC
No. of Pins 7Pins
Power Rating -
Topology Flyback
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)

Alternative Descriptions

Zero standby PSR flyback controller with CVCC and wake-up monitoring | Texas Instruments
IC: PMIC | Transfer Multisort Elektronik
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