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LM5021 Datasheet PDF

Part Series:LM5021 Series
Category:AC-DC Converters
Description:Current Mode PWM Controller 700mA 500kHz 8Pin VSSOP T/R
Document:LM5021MM-1/NOPB Datasheet PDF (37 Pages)

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LM5021MM-2/NOPB - TI Specifications

TYPE
DESCRIPTION
Mounting Style
Surface Mount
Frequency
500 kHz
Number of Pins
8 Pin
Supply Voltage (DC)
30.0V (max)
Case/Package
MSOP-8
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LM5021MM-2/NOPB - TI Function Overview

The LM5021MM-2/NOPB is an off-line Pulse Width Modulation (PWM) Controller contains all of the features needed to implement highly efficient off-line single-ended flyback and forward power converters using current-mode control. It features include an ultra-low (25µA) start-up current, which minimizes power losses in the high voltage start-up network. A skip cycle mode reduces power consumption with light loads for energy conserving applications (ENERGY STAR®, CECP and so forth). Additional features include under-voltage lockout, cycle-by-cycle current limit, hiccup mode overload protection, slope compensation, soft-start and oscillator synchronization capability. This high performance 8-pin IC has total propagation delays less than 100ns and a 1MHz capable oscillator that is programmed with a single resistor.
Current mode control
Skip cycle mode for low standby power
Single resistor programmable oscillator
Synchronizable oscillator
Adjustable soft-start
Direct opto-coupler interface
Under voltage lockout (UVLO) with hysteresis
Cycle-by-cycle over-current protection
Hiccup mode for continuous overload protection
Leading edge blanking of current sense signal
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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