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LM5023 Datasheet PDF

Part Series:LM5023 Series
Category:Power Management
Description:Current Mode PWM Controller 700mA 130kHz 8Pin VSSOP T/R
Document:LM5023MM-2/NOPB Datasheet PDF (38 Pages)

LM5023MM-2/NOPB - TI Specifications

TYPE
DESCRIPTION
Mounting Style
Surface Mount
Frequency
130 kHz
Number of Pins
8 Pin
Supply Voltage (DC)
8.00V (min)
Case/Package
VSSOP-8
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LM5023MM-2/NOPB - TI Function Overview

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.
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