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Lifecycle StatusProduction (Last Updated: 3 days ago)
Manufacturer Lifecycle StatusACTIVE (Last Updated: 3 days ago)
설명
유통업체에서 제공한 Texas Instruments UC3843AN에 대한 설명입니다.
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDIP8
ADVANCED PWM CONTROLLER, 3843, DIP8; Controller Type:PWM; Voltage, Input Max:25V; Output Current Max:4A; Output Type:Totem Pole; Input Current:11mA; Output Energy per Cycle:5µJ; Frequency:500kHz; Power Dissipation:1W; Voltage, Supply
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 limit threshold is assured to a tolerance of 5%. Oscillator discharge current is specified at 10 mA for accurate dead time control. Frequency accuracy is improved to 6%. Startup supply current, typically 100 t,A, is ideal for off-line applications. The output drivers are redesigned to actively sink current during UVLO at no expense to the startup current specification. In addition each output is capable of2-A peak currents during transitions.
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기술 사양
Physical
Case/PackagePDIP
Number of Pins8
Weight528.605208 mg
Technical
Duty Cycle100 %
Fall Time50 ns
Frequency450 kHz
Input Current11 mA
Max Duty Cycle100 %
Max Frequency500 kHz
Max Input Voltage25 V
Max Operating Temperature70 °C
Max Output Current4 A
Max Power Dissipation1 W
Max Supply Voltage30 V
Min Operating Temperature0 °C
Min Supply Voltage12 V
Nominal Input Voltage15 V
Number of Channels1
Number of Outputs1
Output Current1 A
Output TypeTOTEM POLE
Output Voltage15 V
Power Dissipation1 W
Quiescent Current11 mA
Rise Time50 ns
Schedule B8542390000
Switching Frequency500 kHz
TerminationThrough Hole
TopologyBoost, Buck, Flyback
Dimensions
Height5.08 mm
Length9.81 mm
Thickness3.9 mm
Width6.35 mm