onsemi TL594CDG

Buck，Push-Pull Yes 300KHz Transistor Driver 2 SOIC-16 SMD mount 10mm(Length)*1.5mm(height)

PRECISION SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT Switching Controller, Voltage-mode, 0.5A, 300kHz Switching Freq-Max, BIPolar, PDSO16

The TL594 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 systems engineer the flexibility to tailor the power-supply control circuitry to a specific application. The TL594 contains two error amplifiers an on-chip adjustable oscillator a dead-time control (DTC) comparator a pulse-steering control flip-flop a 5-V regulator with a precision of 1.5% an undervoltage lockout control circuit and output control circuitry. The error amplifiers have a common-mode voltage range of -0.3 V to VCC-2 V. The DTC 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 be used to drive the common circuitry in synchronous multiple-rail power supplies. The uncommitted output transistors provide either common-emitter or emitter-follower output capability. Each device provides for push-pull or single-ended output operation with selection by means of the output-control function. The architecture of these devices prohibits the possibility of either output being pulsed twice during push-pull operation. The undervoltage lockout control circuit locks the outputs off until the internal circuitry is operational. The TL594CD CN CDTB are characterized for operation from -40C to 85C.