UC28023DW

Operating Supply Voltage :
Operating Supply Current :
Number of Outputs : 1
Mounting Style : SMD/SMT
Maximum Operating Temperature : + 105 C
Rise Time : 60 ns
Package / Case : SOIC-16
Fall Time : 60 ns
Duty Cycle (Max) : 90 %
Switching Frequency : 1000 KHz


Pinout




Description

The UC28023DW is designed as one kind of fixed-frequency PWM controllers optimized for high-frequency switched-mode power supply applications. It is a single output PWM for single-ended topologies.

UC28023DW has twelve features. (1)Peak current mode, average current mode, or voltage mode (with feed-forward) control methods. (2)Practical operation up to 1MHz. (3)50ns propagation delay to output. (4)±1.5A peak totem pole outputs. (5)9V to 30V nominal operational voltage range. (6)Wide bandwidth error amplifier. (7)Fully latched logic with double pulse suppression. (8)Pulse-by-pulse current limiting. (9)Programmable maximum duty cycle control. (10)Under voltage lockout with hysteresis. (11)Trimmed 5.1V reference with UVLO. (12)Same functionality as UC3823. Those are all the main features.

Some absolute maximum ratings of UC28023DW have been concluded into several points as follow. (1)Its input voltage range would be 30V (2)Its output current would be +/-0.5A. (3)Its peak output current, pulsed 0.5ms would be +/-2.0A. (4)Its capacitive load would be 200pF. (5)Its analog inputs would be from -0.3V to 7V. (6)Its output current Iref would be 10A. (7)Its output current Iclock would be -5A. (8)Its soft-start sink current would be 5mA. (9)Its output current would be 20mA. (10)Its oscillator charging current would be -5mA. (11)Its power dissipation would be 1W. (12)Its operating junction temperature range would be from -55°C to 150°C. (13)Its storage temperature range would be from -65°C to 150°C. (14)Its lead temperature 1,6mm (1/16 inch) from case for 10 seconds would be 300°C. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some electrical characteristics of UC28023DW are concluded as follow. (1)Its reference voltage would be min 5.05V and typ 5.1V and max 5.15V. (2)Its line regulation voltage would be typ 2mV and max 15mV. (3)Its load regulation voltage would be typ 5mV and max 15mV. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!

Parameters:

Technical/Catalog Information	UC28023DW
Vendor	Texas Instruments
Category	Integrated Circuits (ICs)
PWM Type	Voltage/Current Mode
Number of Outputs	1
Package / Case	16-SOIC (7.5mm Width)
Packaging	Tube
Duty Cycle	90%
Voltage - Supply	9 V ~ 30 V
Frequency-Max	1MHz
Buck	No
Boost	Yes
Flyback	Yes
Inverting	No
Doubler	No
Divider	No
Cuk	No
Isolated	No
Drawing Number	296; 4040000-2; DW; 16
Operating Temperature	-40°C ~ 105°C
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	UC28023DW UC28023DW 296 15060 5 ND 296150605ND 296-15060-5