CD5041,LM5041 Cascaded PWM Controller Chip

The CD5041 PWM controller contains all of thefeatures necessary to implement either current-fedor voltage-fed push-pull or bridge power converters.These "Cascaded" topologies are well suited formultiple output and higher power applications.The CD5041's four control outputs include: the buckstage controls (HD and LD) and the push-pullcontrol outputs (PUSH and PULL).Push-pull outputs are driven at 50% nominal dutycycle at one half of the switching frequency of thebuck stage and can be configured for either anoverlap time (for current-fed applications) or a both-off time (for voltage-fed applications).

Internal Start-up Bias Regulator

Programmable Line Under-Voltage Lockout

(UVLO) with Adjustable Hysteresis

Current Mode Control

Internal Error Amplifier with Reference

Cycle-by-cycle Over-Current Protection

Leading Edge Blanking

Programmable Push-Pull Overlap or Dead Time

Internal 1.5A Push-Pull Gate Drivers

Programmable Soft-Start

Programmable Oscillator with Sync Capability

Thermal Shutdown

Precision Reference

Package: TSSOP16、 WSON16