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Details for TL494CDG4 by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
PULSE-WIDTH-MODULATION (PWM) 494
TL494CDG4 image

TL494CDG4 by Texas Instruments

PULSE-WIDTH-MODULATION (PWM) 494
Features
Circuit Architecture Allows Easy Synchronization
Complete PWM Power-Control Circuitry
Internal Circuitry Prohibits Double Pulse at Either Output
Internal Regulator Provides a Stable 5-V Reference Supply With 5% Tolerance
Output Control Selects Single-Ended or Push-Pull Operation
Uncommitted Outputs for 200-mA Sink or Source Current
Variable Dead Time Provides Control Over Total Range
Part Information
TL494CDG4 image
RoHS Compliant
Description
The TL494 device incorporates all the functions required in the construction of a pulse-widthmodulation (PWM) control circuit on a single chip. Designed primarily for power-supply control, this device offers the flexibility to tailor the power-supply control circuitry to a specific application. The TL494 device contains two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, a 5-V, 5%-precision regulator, and output-control circuits. The error amplifiers exhibit a common-mode voltage range from –0.3 V to VCC – 2 V. The dead-time control comparator has a fixed offset that provides approximately 5% dead time. The on-chip oscillator can be bypassed by terminating RT to the reference output and providing a sawtooth input to CT, or it can drive the common circuits in synchronous multiple-rail power supplies. The uncommitted output transistors provide either common-emitter or emitter-follower output capability. The TL494 device provides for push-pull or singleended output operation, which can be selected through the output-control function. The architecture of this device prohibits the possibility of either output being pulsed twice during push-pull operation. The TL494C device is characterized for operation from 0°C to 70°C. The TL494I device is characterized for operation from –40°C to 85°C.
Specifications
Input Voltage:
-
Output Voltage:
40V
Output Current:
200mA
Supply Voltage Min:
7V
Supply Voltage Max:
40V
Controller IC Case Style:
SOIC
No. of Pins:
16Pins
Frequency:
300kHz
Operating Temperature Min:
0°C
Operating Temperature Max:
70°C
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (27-Jun-2018)
Base Number:
494
Controller Type:
PWM
IC Generic Number:
494
IC Temperature Range:
Commercial
Logic Function Number:
494
Operating Temperature Range:
0°C to +70°C
Output Type:
Voltage
Supply Voltage Range:
7V to 40V
Alternate Descriptions
Voltage Mode PWM Controller 40V 200mA 16-Pin SOIC Tube Avnet America