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UC1825AJTIN/a536avaiHigh Speed PWM Controller


UC1825AJ ,High Speed PWM ControllerSLUS334E − AUGUST 1995 − REVISED SEPTEMBER 2010These devices have limited built-in ESD protection. ..
UC1825J ,High Speed PWM ControllerapplicationUC1825INFOUC2825availableUC3825High Speed PWM Controller
UC1825J ,High Speed PWM ControllerapplicationUC1825INFOUC2825availableUC3825High Speed PWM Controller
UC1825J/883B ,High Speed PWM ControllerapplicationUC1825INFOUC2825availableUC3825High Speed PWM Controller
UC1834J ,High Efficiency Linear RegulatorMAXIMUM RATINGS (Note 1)Input Supply Voltage, V + . . . . . . . . . . . . . . . . . . . . . . . . . ..
UC1834J/883B ,High Efficiency Linear RegulatorELECTRICAL CHARACTERISTICS: Unless otherwise stated, these specifications apply for TA=- 55°C to +1 ..
ULN2001 ,HIGH-VOLTAGE/ HIGH-CURRENT DARLINGTON ARRAYSULN2001A-ULN2002A® ULN2003A-ULN2004ASEVEN DARLINGTON ARRAYS. SEVEN DARLINGTONS PER PACKAGE.OUTPUT C ..
ULN2001A ,SEVEN DARLINGTON ARRAYSULN2001A-ULN2002A® ULN2003A-ULN2004ASEVEN DARLINGTON ARRAYS. SEVEN DARLINGTONS PER PACKAGE.OUTPUT C ..
ULN2001D ,Seven darlington arraysABSOLUTE MAXIMUM RATINGSSymbol Parameter Value UnitV Output Voltage 50 VoV Input Voltage (for ULN20 ..
ULN2001D1013TR ,SEVEN DARLINGTON ARRAYSULN2001A-ULN2002A® ULN2003A-ULN2004ASEVEN DARLINGTON ARRAYS. SEVEN DARLINGTONS PER PACKAGE.OUTPUT C ..
ULN2002 ,SEVEN DARLINGTON ARRAYSULN2001A-ULN2002A® ULN2003A-ULN2004ASEVEN DARLINGTON ARRAYS. SEVEN DARLINGTONS PER PACKAGE.OUTPUT C ..
ULN2002A ,HIGH VOLTAGE, HIGH CURRENT DARLINGTON TRANSISTOR ARRAYSULN2001A-ULN2002A® ULN2003A-ULN2004ASEVEN DARLINGTON ARRAYS. SEVEN DARLINGTONS PER PACKAGE.OUTPUT C ..


UC1825AJ
High Speed PWM Controller
UC1823A, UC2823A, UC2823B,
UC3823A, UC3823B, UC1825A,
UC2825A, UC2825B, UC3825A, UC3825B
SLUS334E − AUGUST 1995 − REVISED SEPTEMBER 2010
HIGH-SPEED PWM CONTROLLER
FEATURES
Improved Versions of the UC3823/UC3825PWMs Compatible with Voltage-Mode orCurrent-Mode Control Methods Practical Operation at Switching Frequenciesto 1 MHz 50-ns Propagation Delay to Output High-Current Dual Totem Pole Outputs(2-A Peak) Trimmed Oscillator Discharge Current Low 100-μA Startup Current Pulse-by-Pulse Current Limiting Comparator Latched Overcurrent Comparator With FullCycle Restart
DESCRIPTION

The UC3823A and UC3823B and the UC3825A andUC3825B family of PWM controllers are improved
versions of the standard UC3823 and UC3825 family.Performance enhancements have been made to several
of the circuit blocks. Error amplifier gain bandwidth productis 12 MHz, while input offset voltage is 2 mV . Current limitthreshold is assured to a tolerance of 5%. Oscillator
discharge current is specified at 10 mA for accurate deadtime control. Frequency accuracy is improved to 6%.
Startup supply current, typically 100 μA, is ideal for off-lineapplications. The output drivers are redesigned to actively
sink current during UVLO at no expense to the startupcurrent specification. In addition each output is capable of
2-A peak currents during transitions.
BLOCK DIAGRAM
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