UCC28782BDLRTWR

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Texas Instruments

HIGH-DENSITY FLYBACK CONTROLLER FOR ACTIVE-CLAMP (ACF) AND ZERO-VOLTAGE SWITCHING (ZVS) TOPOLOGIES

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DocumentsEnabling Small-Form-Factor AC/DC Adapters With use of Integrated GaN Technology UCC28782 Practical Design Guidelines +9

UCC28782BDLRTWR

Active

Texas Instruments

HIGH-DENSITY FLYBACK CONTROLLER FOR ACTIVE-CLAMP (ACF) AND ZERO-VOLTAGE SWITCHING (ZVS) TOPOLOGIES

Deep-Dive with AI

DocumentsEnabling Small-Form-Factor AC/DC Adapters With use of Integrated GaN Technology UCC28782 Practical Design Guidelines +9

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	UCC28782BDLRTWR

Control Features	Soft Start
Fault Protection	Short Circuit, Current Limiting, Over Temperature, Over Voltage
Internal Switch(s)	True
Mounting Type	Surface Mount
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Isolation	Isolated
Package / Case	24-WFQFN Exposed Pad
Supplier Device Package	24-WQFN (4x4)
Topology	Boost, Flyback
Voltage - Start Up	17 V
Voltage - Supply (Vcc/Vdd) [Max]	34 V
Voltage - Supply (Vcc/Vdd) [Min]	14 V

UCC28782 Series

High-density flyback controller for active-clamp (ACF) and zero-voltage switching (ZVS) topologies

Part	Utilized IC / Part	Secondary Attributes	Supplied Contents	Type	Function	Mounting Type	Output Isolation	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Operating Temperature [Min]	Operating Temperature [Max]	Topology	Fault Protection	Supplier Device Package	Package / Case	Control Features	Voltage - Start Up
Texas Instruments UCC28782EVM-030	UCC28782	On-Board Test Points	Board(s)	Power Management	USB PD Controller (Power Delivery)
Texas Instruments UCC28782ARTWT						Surface Mount	Isolated	14 V	34 V	-40 °C	125 ¯C	Flyback	Current Limiting Over Temperature Over Voltage Short Circuit	24-WQFN (4x4)	24-WFQFN Exposed Pad
Texas Instruments UCC28782BDLRTWR						Surface Mount	Isolated	14 V	34 V	-40 °C	125 ¯C	Boost Flyback	Current Limiting Over Temperature Over Voltage Short Circuit	24-WQFN (4x4)	24-WFQFN Exposed Pad	Soft Start	17 V
Texas Instruments UCC28782CDRTWR						Surface Mount	Isolated	14 V	34 V	-40 °C	125 ¯C	Boost Flyback	Current Limiting Over Temperature Over Voltage Short Circuit	24-WQFN (4x4)	24-WFQFN Exposed Pad	Soft Start	17 V
Texas Instruments UCC28782ARTWR						Surface Mount	Isolated	14 V	34 V	-40 °C	125 ¯C	Flyback	Current Limiting Over Temperature Over Voltage Short Circuit	24-WQFN (4x4)	24-WFQFN Exposed Pad

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	3000	$ 1.00
		6000	$ 0.96
Texas Instruments	LARGE T&R	1	$ 1.64
		100	$ 1.35
		250	$ 0.97
		1000	$ 0.73

Description

General part information

UCC28782 Series

The UCC28782 is a high-density active-clamp flyback (ACF) controller for USB Type C™ PD applications and allows for efficiencies over 93% by recovering the leakage inductance energy and adaptive ZVS tracking over the full load range.

With a maximum frequency of 1.5 MHz the magnetics can be minimized. Frequency dithering helps to improve EMI margin. The UCC28782 also integrates dynamic bias power management to optimize the gate drive for Si or GaN MOSFETs.

Adaptive Burst Mode (ABM) combined with Low Power Mode (LPM) and Standby Power mode (SBP) work together to increase light-load efficiency while reducing ripple and audible noise.