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L494

  

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Manufacturer Part no Description View
Integral
IntegralIntegral
IL494 PWM Control Circuit


other parts : IL494D IL494N 
Integral
IntegralIntegral
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
• 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

 


other parts : IL494D IL494N 
TI
TITI
TL494 PULSE-WIDTH-MODULATION CONTROL CIRCUITS


other parts : TL493 TL493CD TL493CN TL494C TL494CD TL494CJ TL494CN TL494I TL494ID TL494IJ 
IKSEMICON
IKSEMICONIKSEMICON
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.

FEATURE
• 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

 


other parts : IL494D IL494DT IL494N 
ETC
ETCETC
IL494 PWM Control Circuit

[IKSEMICON]

  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
•  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


other parts : IL494D IL494DT IL494N 
UTC
UTCUTC
UTCTL494 VOLTAGE MODE PWM CONTROL CIRCUIT

DESCRIPTION
The UTC TL494 incorporates all the functions required in the construction of a pulse-width modulation switching circuit. Designed primarily for switching power supply control or DC DC convectors, it offers the systems engineer the flexibility to tailor control circuitry to its own application.

System-Logic
System-LogicSystem-Logic
SL494 PWM Control Circuit

PWM Control Circuit

The  SL 494 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  SL494 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

·  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


other parts : SL494D SL494N 
UTC
UTCUTC
TL494 VOLTAGE MODE PWM CONTROL CIRCUIT

DESCRIPTION
The UTC TL494incorporates all the functions required in the construction of a pulse-width modulation switching circuit. Designed primarily for switching power supply control or DC-DC
convectors, it offers the systems engineer the flexibility to tailor control circuitry to its own application.



other parts : TL494-D16-T TL494-S16-R TL494-S16-T TL494G-D16-T TL494G-P16-R TL494G-P16-T TL494G-S16-R TL494G-S16-T TL494L-D16-T TL494L-P16-R 
Motorola
MotorolaMotorola
TL494 SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT

The TL494 is a fixed frequency, pulse width modulation control circuit designed primarily for SWITCHMODE power supply control.


1. Complete Pulse Width Modulation Control Circuitry
2. On–Chip Oscillator with Master or Slave Operation
3. On–Chip Error Amplifiers
4. On–Chip 5.0 V Reference
5. Adjustable Deadtime Control
6. Uncommitted Output Transistors Rated to 500 mA Source or Sink
7. Output Control for Push–Pull or Single–Ended Operation
8. Undervoltage Lockout
 


other parts : TL494CD TL494CN TL494IN 
Fairchild
FairchildFairchild
TL494 SMPS Controller

Description
The TL494 is used for the control circuit of the PWM switching regulator. The TL494 consists of 5V reference voltage circuit, two error amplifiers, flip flop, an output control circuit, a PWM comparator, a dead time comparator and an oscillator. This device can be operated in the switching frequency of 1 KHz to 300 KHz.


other parts : TL494CD TL494CN 

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Key Word
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