LM5023MM-2/NOPB Datasheet PDF - TI

●The LM5023MM-2/NOPB is a quasi-resonant Pulse Width Modulated (PWM) Controller contains all of the features needed to implement a highly efficient off-line power supply. It uses the transformer auxiliary winding for demagnetization detection to ensure critical conduction mode (CrCM) operation. It features a hiccup mode for overcurrent protection with an auto restart to reduce the stress on the power components during an overload. A skip-cycle mode reduces power consumption at light loads for energy conservation applications (ENERGY STAR®, CEPCP and so forth). It also uses the transformer auxiliary winding for output overvoltage protection (OVP); if an OVP fault is detected the LM5023 latches off the controller.

● Critical conduction mode

● Peak-current mode control

● Skip-cycle mode for low-standby power

● Hiccup mode for continuous overload protection

● Cycle-by-cycle overcurrent protection maintains

● Accuracy over the universal AC line

● Line-voltage feed forward

● OVP Protection by sensing the auxiliary winding

● Direct opto-coupler interface

● Leading edge blanking of current sense signal

● Programmable soft-start

● Thermal shutdown

● Green product and no Sb/Br

●Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.