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UCC3583, UCC3583DG4, UCC3583DTR

Table of contents:
Info of UCC3583
Info of UCC3583DG4
Info of UCC3583DTR

UCC3583, UCC3583DG4, UCC3583DTR Selling Leads, Datasheet

MFG:Texas Instruments Category:Integrated Circuits (ICs) Package Cooled:SOP D/C:07/08+

UCC3583, UCC3583DG4, UCC3583DTR Datasheet download

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Part Number: UCC3583

Category: Integrated Circuits (ICs)

MFG: Texas Instruments

Package Cooled: SOP

D/C: 07/08+

Description: UCC3583DTR

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UCC3583 General Description

The UCC3583 is a synchronizable secondary side post regulator for precision regulation of the auxiliary outputs of multiple output power supplies. It contains a leading edge pulse width modulator, which generates the gate drive signal for a FET power switch connected in series with the rectifying diode. The turn-on of the power switch is delayed from the leading edge of the secondary power pulse to regulate the output voltage. The UCC3583 contains a ramp generator slaved to the secondary power pulse, a voltage error amplifier, a current error amplifier, a PWM comparator and associated logic, a gate driver, a precision reference, and protection circuitry.

The ramp discharge and termination of the gate drive signal are triggered by the synchronization pulse, typically derived from the falling edge of the transformer secondary voltage. The ramp starts charging again once its low threshold is reached. The gate drive signal is turned on when the ramp voltage exceeds the control voltage. This leading edge modulation technique prevents instability when the UCC3583 is used in peak current mode primary controlled systems.

The controller operates from a floating power supply referenced to the output voltage being controlled. It features an undervoltage lockout (UVLO) circuit, a soft start circuit, and an averaging current limit amplifier. The current limit can be programmed to be proportional to the output voltage, thus achieving foldback operation to minimize the dissipation under short circuit conditions.

UCC3583 Maximum Ratings

V_DD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . .. . . . . . . . . . 15V
I_VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15mA
RAMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3V to V_DD + 1V
I_RAMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  .. . . . . . . . 5mA
I_REF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30mA
PCOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.2V to 0.2V
I_GATE (twp < 1S and Duty Cycle < 10%) . . . . . . 0.8A to 1.8A
I_COMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA to 5mA
I_CAO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA to 5mA
V_SYNC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.6V to V_REF +0.3V
I_SYNC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 05mA to 5mA
INV, SS, ILIM, ISENSE. . . . . . . . . .  . .. . . . 0.3V to VREF + 0.3V
Storage Temperature . . . . . . . . . . . . . . . . . . . 65 to +150
Junction Temperature. . . . . . . . . . . . . . . . . . . 55 to +150
Lead Temperature (Soldering, 10 sec.) . . . . . . . . . . . . . +300

All voltages are with respect to the COM terminal unless otherwise stated. Currents are positive into, negative out of the specified terminal. Consult Packaging Section of Databook for thermal limitations and considerations of packages.

UCC3583 Features

· Precision Secondary Side Post Regulation for Multiple Output Power Supplies
· Useful for Both Single Ended and Center Tapped Secondary Circuits
· Ideal Replacement for Complex Magnetic Amplifier Regulated Circuits
· Leading Edge Modulation
· Does Not Require Gate Drive Transformer
· High Frequency (>500kHz) Operation
· Applicable for Wide Range of Output Voltages
· High Current Gate Driver (0.5A Sink/1.5A Source)
· Average Current Limiting Loop

UCC3583 Connection Diagram

UCC3583DG4 Parameters

Technical/Catalog Information	UCC3583DG4
Vendor	Texas Instruments
Category	Integrated Circuits (ICs)
PWM Type	Current Mode
Number of Outputs	1
Package / Case	*
Packaging	*
Duty Cycle	100%
Voltage - Supply	9 V ~ 15 V
Frequency-Max	500kHz
Buck	No
Boost	No
Flyback	No
Inverting	No
Doubler	No
Divider	No
Cuk	No
Isolated	Yes
Drawing Number	*
Operating Temperature	0°C ~ 70°C
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	UCC3583DG4 UCC3583DG4

UCC3583DTR Parameters

Technical/Catalog Information	UCC3583DTR
Vendor	Texas Instruments
Category	Integrated Circuits (ICs)
PWM Type	Current Mode
Number of Outputs	1
Package / Case	*
Packaging	*
Duty Cycle	100%
Voltage - Supply	9 V ~ 15 V
Frequency-Max	500kHz
Buck	No
Boost	No
Flyback	No
Inverting	No
Doubler	No
Divider	No
Cuk	No
Isolated	Yes
Drawing Number	*
Operating Temperature	0°C ~ 70°C
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	UCC3583DTR UCC3583DTR

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