UCC28722DBVT

Active

Texas Instruments

LOW-COST CVCC FLYBACK CONTROLLER WITH PRIMARY-SIDE REGULATION FOR BIPOLAR POWER DEVICE

Deep-Dive with AI

Search across all available documentation for this part.

DocumentsConnected Sensors Building Automation Systems Guide Making smart meter eFuses robust and reliable +15

UCC28722DBVT

Active

Texas Instruments

LOW-COST CVCC FLYBACK CONTROLLER WITH PRIMARY-SIDE REGULATION FOR BIPOLAR POWER DEVICE

Deep-Dive with AI

DocumentsConnected Sensors Building Automation Systems Guide Making smart meter eFuses robust and reliable +15

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	UCC28722DBVT

Fault Protection	Over Voltage, Current Limiting
Frequency - Switching [Max]	80 kHz
Frequency - Switching [Min]	650 Hz
Internal Switch(s)	False
Mounting Type	Surface Mount
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Isolation	Isolated
Package / Case	SOT-23-6
Supplier Device Package	SOT-23-6
Topology	Flyback
Voltage - Start Up	21 V
Voltage - Supply (Vcc/Vdd) [Max]	35 V
Voltage - Supply (Vcc/Vdd) [Min]	9 V

UCC28722 Series

Low-Cost CVCC Flyback controller With primary-side regulation for bipolar Power Device

Part	Package / Case	Frequency - Switching [Max]	Frequency - Switching [Min]	Supplier Device Package	Voltage - Start Up	Operating Temperature [Min]	Operating Temperature [Max]	Internal Switch(s)	Fault Protection	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Output Isolation	Mounting Type	Topology
Texas Instruments UCC28722DBVT	SOT-23-6	80 kHz	650 Hz	SOT-23-6	21 V	-40 °C	125 ¯C		Current Limiting Over Voltage	35 V	9 V	Isolated	Surface Mount	Flyback
Texas Instruments UCC28722DBVR	SOT-23-6	80 kHz	650 Hz	SOT-23-6	21 V	-40 °C	125 ¯C		Current Limiting Over Voltage	35 V	9 V	Isolated	Surface Mount	Flyback

Pricing

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

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 1.17
		10	$ 1.04
		25	$ 0.99
		100	$ 0.81
	Digi-Reel®	1	$ 1.17
		10	$ 1.04
		25	$ 0.99
		100	$ 0.81
	Tape & Reel (TR)	250	$ 0.76
		500	$ 0.67
		1250	$ 0.53
		2500	$ 0.49
		6250	$ 0.47
		12500	$ 0.45
Texas Instruments	SMALL T&R	1	$ 1.00
		100	$ 0.68
		250	$ 0.53
		1000	$ 0.35

Description

General part information

UCC28722 Series

The UCC28722 flyback power supply controller provides isolated-output constant-voltage (CV) and constant-current (CC) output regulation without the use of an optical coupler. The device processes information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current.

Dynamically-controlled operating states and a tailored modulation profile support high-efficiency operation at all load levels without sacrificing output transient response.

Control algorithms in the UCC28722 device allow operating efficiencies to meet or exceed applicable standards. The output drive interfaces to a bipolar transistor power switch, enabling lower-cost converter design. Discontinuous conduction mode (DCM) with valley switching reduces switching losses, while modulation of switching frequency and primary current peak amplitude (FM and AM) keeps the conversion efficiency high across the entire load and line ranges.