UCC3813N-3 ,0Maximum Ratings(1)(2)over operating free-air temperature range (unless otherwise noted)MIN MAX UNIT ..
UCC3813N-3 ,0 SLUS161E–APRIL 1999–REVISED AUGUST 20165 Device Comparison TableMAXIMUM DUTY REFERENCE TURNON TURN ..
UCC3813N-3 ,0 SLUS161E–APRIL 1999–REVISED AUGUST 20165 Device Comparison TableMAXIMUM DUTY REFERENCE TURNON TURN ..
UCC3813N-3 ,0Maximum Ratings table. 42 Submit Documentation Feedback Copyright 1999–2016, Texas Instruments Inc ..
UCC3813N-3 ,0Block DiagramFB COMP CS2 1 37 VCCUCCx813-1Leading EdgeUCCx813-4BlankingUCCx813-51.5 VOnlyVCC REF/2O ..
UCC3813N-4 ,0Features... 19 Application and Implementation...... 222 Applications..... 19.1 Application Informat ..
UPA606T ,N-CHANNEL MOS FET 6-PIN 2 CIRCUITS FOR SWITCHINGDATA SHEETMOS FIELD EFFECT TRANSISTORμPA606TN-CHANNEL MOS FET (6-PIN 2 CIRCUITS)FOR SWITCHIN ..
UPA607 ,P-CHANNEL MOS FET 6-PIN 2 CIRCUITS FOR SWITCHINGDATA SHEETMOS FIELD EFFECT TRANSISTORμPA607TP-CHANNEL MOS FET (6-PIN 2 CIRCUITS)FOR SWITCHIN ..
UPA607T ,P-CHANNEL MOS FET 6-PIN 2 CIRCUITS FOR SWITCHINGDATA SHEETMOS FIELD EFFECT TRANSISTORμPA607TP-CHANNEL MOS FET (6-PIN 2 CIRCUITS)FOR SWITCHIN ..
UPA611TA ,N-CHANNEL MOS FIELD EFFECT TRANSISTOR FOR HIGH SPEED SWITCHINGFEATURES0.95 0.950.8• Can be driven by a 2.5-V power source1.9• Low gate cut-off voltage 1.1 to 1.4 ..
UPA621TT ,N-CHANNEL MOS FIELD EFFECT TRANSISTOR FOR SWITCHINGFEATURES• 2.5 V drive available• Low on-state resistance0.65 0.65SRDS(on)1 = 50 mΩ MAX. (VGS = 4.5 ..
UPA621TT-E1 ,N-channel enhancement type MOS FETFEATURES• 2.5 V drive available• Low on-state resistance0.65 0.65SRDS(on)1 = 50 mΩ MAX. (VGS = 4.5 ..
UCC38133-UCC3813D-3-UCC3813D-3G4-UCC3813DTR3-UCC3813DTR-3-UCC3813N3-UCC3813N-3-UCC3813PW-3-UCC3813PWTR-3
0
COMP CS2VCC
1.5 V
Over Current REF/2
Full Cycle
Soft StartQ SQQ
Oscillator
Leading Edge
Blanking
Latch
UCCx813-1
UCCx813-4
UCCx813-5
Only
VCC
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Design
UCC2813-0, UCC2813-1, UCC2813-2, UCC2813-3, UCC2813-4, UCC2813-5
UCC3813-0, UCC3813-1, UCC3813-2, UCC3813-3, UCC3813-4, UCC3813-5SLUS161E –APRIL 1999–REVISED AUGUST 2016
UCCx813-x Low-Power Economy BiCMOS Current-Mode PWM Features 100-µA Typical Starting Supply Current 500-µA Typical Operating Supply Current Operationto1 MHz Internal Soft Start Internal Fault Soft Start Internal Leading-Edge Blankingof the Current-
Sense Signal 1-A Totem-Pole Output 70-ns Typical Response from Current-Senseto
Gate-Drive Output 1.5% Tolerance Voltage Reference Same Pinoutas the UCC3802 Device, UC3842
Device, and UC3842A Device Families
Applications Switch Mode Power Supplies (SMPS) DC-DC Converters Power Modules Industrial PSUs Battery Operated PSUs
DescriptionThe UCC3813-x device family of high-speed, low-
power integrated circuits contains allof the control
and drive components requiredfor off-line and DC-to- fixed-frequency current-mode switching power
supplies with minimal parts count.
These devices have the same pin configuration as
the UC384x device family, and also offer the added
featuresof internal full-cycle soft start and internal
leading-edge blankingof the current-sense input.
The UCC3813-x device family offersa variety of
package options, temperature-range options, choice maximum duty cycle, and choiceof critical voltage
levels. Devices with lower reference voltage suchas
the UCC3813-3 and UCC3813-5fit best into battery
(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
Block Diagram
