UCC28720D - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

UCC28720D
Manufacturer

TI
ChipWorker Part#

CW18378936
Category

PWM Controller IC
Package

SOIC-8
Description

Current Mode PWM Controller 87kHz 7Pin SOIC Tube
Documentation

Datasheet

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UCC28720D Specifications

Attribute	Attribute Value

Part Number	UCC28720D
Manufacturer	TI
ChipWorker Part#	CW18378936
Category	PWM Controller IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	7 Pin
Case/Package	SOIC-8
Frequency	80 kHz
Supply Voltage (DC)	9.00V (min)
Supply Current	2.65 mA
Number of Positions	7 Position
Switching Frequency	650Hz ~ 80kHz
Topology	Flyback
Duty Cycle	99 %
Maximum Duty Cycle	99 %
Operating Temperature (Max)	125 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage (Max)	35 V
Supply Voltage (Min)	9 V
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Size-Length	5 mm
Size-Width	4 mm
Size-Height	1.5 mm
Operating Temperature	-40℃ ~ 125℃ (TJ)
Product Lifecycle Status	Active
Packaging	Each
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

Product Description

The UCC28720D is a flyback Power Supply Controller 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 700V start-up switch, dynamically-controlled 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 UCC28720 allow operating efficiencies to meet or exceed applicable standards. The output drive interfaces to a bipolar transistor 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.
<10mW No-load power
Primary-side regulation (PSR) eliminates opto-coupler
±5% Voltage and current regulation across line and load
700V Start-up switch
High-power density charger designs
Quasi-resonant valley-switching operation for highest overall efficiency
Wide VDD range allows small bias capacitor
Dynamic BJT drive
Overvoltage, low-line and overcurrent protection functions
Programmable cable compensation
Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

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