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.

Features:
• Complete PWM power-control circuitry
• Uncommitted outputs for 200-mA sink or source current
• Output control selects single-ended or push-pull operation
• Internal circuitry prohibits double pulse at either output
• Variable dead time provides control over total range
• Internal regulator provides a stable 5-V reference supply with 5% tolerance
• Circuit architecture allows easy synchronization

Specifications:
• Working voltage: DC 7V-40V
• Operating frequency 500Hz-100kHz (adjustable R6)
• Maximum output current: 250mA
• Output voltage: DC 5V
• Size: 26 x 23mm

Applications:
• Desktop PCs
• Microwave ovens
• Power supplies: AC/DC, isolated, with PFC, > 90W
• Server PSUs
• Solar micro-inverters
• Washing machines: low-end and high-end
• Power supplies: AC/DC, isolated, No PFC, < 90W
• Smoke detectors
• Solar power inverters

PDF Datasheet