DatasheetsPDF.com

IL494

IK Semiconductor
Part Number IL494
Manufacturer IK Semiconductor
Description Pulse-Width-Modulation Control Circuit
Published Dec 29, 2005
Detailed Description w emitter or emitter-follower output capability. Push-pull or single-ended • • • • • • Complete PWM Power Control Circui...
Datasheet PDF File IL494 PDF File

IL494
IL494


Overview
w emitter or emitter-follower output capability.
Push-pull or single-ended • • • • • • 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 h S aincorporates on a single monolithic chip all the functions The IL494 t required in athe construction of a pulse-width-modulation control circuit.
Designed primarily for power supply control, the IL494 contains an onD .
regulator, two error amplifiers, adjustable oscillator, deadchip 5-volt wcontrol comparator, pulse-steering flip-flop, and output-control time w circuitry.
The uncommitted output transistors provide either commonoutput 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.
PWM Control ee Circuit U 4 t m o .
c TECHNICAL DATA IL494 FUNCTION TABLE Output Control Grounded At Vref Output Function Single-ended or Parallel Output Normal Push-Pull Operation w w w t a .
D S a e h U 4 t e ORDERING INFORMATION IL494N Plastic IL494D SOIC TA = -20°C to 85° C for all packages .
c m o PIN ASSIGNMENT LOGIC DIAGRAM w w w .
D a S a t e e h U 4 t m o .
c 1 IL494 MAXIMUM RATINGS Symbol VCC VI VO Tstg Supply Voltage Amplifier Input Voltage Collector Output Voltage Collector Output Current Storage Temperature Parameter Value 41 VCC +0.
3 41 250 -65 to +150 Unit V V V mA °C RECOMMENDED OPERATING CONDITIONS Symbol VCC VI VO Supply Voltage Amplifier Input Voltage Collector Output Voltage Collector Output Current (Each Transistor) Current Into Feed back Terminal CT RT TA Timing Capacitor Timing Resistor Oscillator Frequency Operating Free-Air Temperature 0.
47 1.
8 1 -20 Parameter Min 7 -0.
3 Max 40 VCC - 2 40 200 0.
3 10.
000 500 300...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)