UCC28712D Part Information
The UCC2871x family of flyback power supply controllers provides isolated-output Constant-Voltage (CV) and Constant-Current (CC) output regulation without the use of an optical coupler. The devices process information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current. An internal 700-V start-up switch, dynamicallycontrolled operating states and a tailored modulation profile support ultra-low standby power without sacrificing start-up time or output transient response. Control algorithms in the UCC28710 family allow operating efficiencies to meet or exceed applicable standards. The output drive interfaces to a MOSFET power switch. Discontinuous conduction mode (DCM) with valley switching reduces switching losses. Modulation of switching frequency and primary current peak amplitude (FM and AM) keeps the conversion efficiency high across the entire load and line ranges. The controllers have a maximum switching frequency of 100 kHz and always maintain control of the peakprimary current in the transformer. Protection features help keep primary and secondary component stresses in check. The UCC28710, UCC28714 and UCC28715 allow the cable compensation to be programmed. The UCC28711, UCC28712 and UCC28713 devices allow remote temperature sensing using a negative temperature coefficient (NTC) resistor while providing fixed cablecompensation levels.
- 100-kHz Maximum Switching Frequency Enables High-Power Density Charger Designs
- 700-V Start-Up Switch
- < 10-mW No-Load Power
- Clamped Gate-Drive Output for MOSFET
- Frequency Jitter to Ease EMI Compliance
- NTC Resistor Interface (UCC28711, UCC28712 and UCC28713) with Fixed Cable Compensation Options
- Overvoltage, Low-Line, and Overcurrent Protection Functions
- Primary-Side Regulation (PSR) Eliminates Opto- Coupler
- Programmable Cable Compensation (UCC28710, UCC28714 and UCC28715)
- Quasi-Resonant Valley-Switching Operation for Highest Overall Efficiency
- SOIC-7 Package
- Wide VDD Range Allows Small Bias Capacitor
- u00b15% Voltage and Current Regulation Across Line and Load
|IC Function||Constant Current / Constant Voltage Controller|
|Supply Voltage Min||9V|
|Supply Voltage Max||35V|
|IC Package Type||SOIC|
|No. of Pins||7Pins|
|Operating Temperature Min||-40°C|
|Operating Temperature Max||125°C|
|Automotive Qualification Standard||-|
|RoHS Phthalates Compliant||Yes|
|MSL||MSL 1 - Unlimited|
|SVHC||No SVHC (27-Jun-2018)|
|Controller IC Case Style||SOIC|
Frequently Asked Questions
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Additional datasheets, footprints and schematics for UCC28712D are listed in our Part Details tab. You can also find the UCC28712D image and similar parts on this details page.
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What category does UCC28712D fall under?
The UCC28712D is listed under Semiconductors - ICs > Power Management ICs - PMIC > PWM Controllers.
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You can view similar parts to UCC28712D when available in the PWM Controllers range under the specifications section at the bottom of the details page.
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Is the UCC28712D RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Farnell.
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