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IL494DT PDF预览

IL494DT

更新时间: 2024-11-05 12:04:27
品牌 Logo 应用领域
IKSEMICON 光电二极管
页数 文件大小 规格书
9页 411K
描述
PWM Control Circuit

IL494DT 数据手册

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TECHNICAL DATA  
PWM Control Circuit  
IL494  
The IL494 incorporates on a single monolithic chip all the  
functions required in the construction of a pulse-width-modulation  
control circuit. Designed primarily for power supply control, the  
IL494 contains an on-chip 5-volt regulator, two error amplifiers,  
adjustable oscillator, dead-time control comparator, pulse-steering  
flip-flop, and output-control circuitry. The uncommitted output  
transistors provide either common-emitter or emitter-follower output  
capability. Push-pull or single-ended output operation may be  
selected through the output-control function. The architecture of the  
IL494 prohibits the possibility of either output being pulsed twice  
during push-pull operation.  
FEATURE  
PIN ASSIGNMENT  
Complete PWM Power Control Circuitry  
Uncommitted Outputs for 200 mA Sink or Source  
Output Control Selects Single-Ended or Push-Pull Operation  
Internal Circuitry Prohibits Double Pulse at Either Output  
Internal Regulator Provides a Stable 5 V Reference Supply  
Variable Dead-Time Provides Control Over Total Range  
ORDERING INFORMATION  
Operating  
Temperature Range  
Device  
Package  
Shipping  
Tube  
Plastic  
IL494N  
DIP-16  
SOP-16  
SOP-16  
TA = -20° to 85° C  
for all packages  
IL494D  
IL494DT  
Tube  
Tape& Reel  
FUNCTION TABLE  
Output Control  
Grounded  
Output Function  
Single-ended or Parallel Output  
Normal Push-Pull Operation  
At Vref  
LOGIC DIAGRAM  
2011, February, Rev. 02  

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