UC3827DW-1 ,1MAXIMUM RATINGSUC2827-1UC2827-2UNITSUC3827-1UC3827-2Supply voltage, VCC 20CEAO, CEA+, CEA-, CSAO, C ..
UC3827DW-2 ,1FEATURESDESCRIPTION• Ideal for Multiple Output and/or HighThe UC3827 family of controller devices p ..
UC3827N-1 , Buck Current/Voltage Fed Push-Pull PWM Controllers
UC382T-1 ,1electrical characteristics, T = −40°C to 100°C for the UC282-X series and 0°C to 100°C for theAUC38 ..
UC382T-1 ,1electrical characteristics, T = −40°C to 100°C for the UC282-X series and 0°C to 100°C for theAUC38 ..
UC382T-2 ,1maximum ratings over operating free-air temperature (unless otherwise noted)VB . . . . . . . . . . ..
UMH4N , General purpose (dual digital transistors)
UMH6N , General purpose (dual digital transistors)
UMH7N , General purpose (dual digital transistors)
UMH9 N TN , NPN 100mA 50V Complex Digital Transistors
UMH9N TN , NPN 100mA 50V Complex Digital Transistors
UMH9N TN , NPN 100mA 50V Complex Digital Transistors
UC3827DW-1
Buck Current/Voltage Fed Push-Pull PWM Controllers
DELAY
CSA+8
CSAO
CEA−
VEA−
VEA+14CEA+
CEAOVEAO
PUSH
DELAY
DELAY
Current SenseAmplifier
+3 V
Current Error
Amplifier
Push/Pull
Drivers
UVLO
Voltage Error
Amplifier
UC3827-1,
www.ti.com SLUS365D–APRIL 1999–REVISED APRIL 2011 integrated•
Upto 500 kHz Operation push-pull
High Voltage, High Current Floating current
Driver for Buck Converter Stage are ideally•
UC3827-1 Current Fed Controller hasPush-Pull Drivers with OverlappingConduction Periods•
UC3827-2 Voltage Fed Controller has
Push-Pull Drivers with Nonoverlapping
Conduction Periods•
Average Current Mode, Peak CurrentModeor Voltage Mode with Input the transformer across the energy storage capacitor
Voltage Feedforward Control for Buck andto prohibit excessive currents flowing through the
Power Stage devices.
Wide Bandwidth, Low Offset, The converter's output voltageis regulated by pulse
Differential Current Sense Amplifier width modulationof the buck switch. The UC3827•
Precise Short Circuit Current Control contains complete protection and PWM control
functions for the buck converter. Easy controlof the by the floating driveis level shiftedto72 VDC.
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