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IL494

更新时间: 2024-11-05 05:39:11
品牌 Logo 应用领域
IKSEMICON /
页数 文件大小 规格书
5页 240K
描述
PWM Control Circuit

IL494 数据手册

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TECHNICAL DATA  
IL494  
PWM Control Circuit  
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.  
Complete PWM Power Control Circuitry  
ORDERING INFORMATION  
IL494N Plastic  
IL494D SOIC  
TA = -20°C to 85° C for all packages  
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  
PIN ASSIGNMENT  
FUNCTION TABLE  
Output Control  
Grounded  
Output Function  
Single-ended or Parallel Output  
Normal Push-Pull Operation  
At Vref  
LOGIC DIAGRAM  
Rev. 00  

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