The TL494 device incorporates all the functions required in the construction of a pulse-width- modulation (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.

 

1.Complete PWM power-control circuitry

2.Uncommitted outputs for 200-mA sink or source current

3.Output control selects single-ended or push-pull operation

4.Internal circuitry prohibits double pulse at either output

5.Variable dead time provides control over total range

6.Internal regulator provides a stable 5-V reference supply with 5% tolerance

7.Circuit architecture allows easy synchronization

 

 

1.Working voltage: DC 7V-40V

2.Operating frequency 500Hz-100kHz (adjustable R6)

3.Maximum output current: 250mA

4.Output voltage: DC 5V

5.Size: 26 x 23mm

 

1.Desktop PCs

2.Microwave ovens

3.Power supplies: AC/DC, isolated, with PFC, > 90 W

4.Server PSUs

5.Solar micro-inverters

6.Washing machines: low-end and high-end

7.Power supplies: AC/DC, isolated, No PFC, < 90 W

8.Smoke detectors

9.Solar power inverters