LM5021MM-1/NOPB Part Information

Details for LM5021MM-1/NOPB by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Power Management

Part Description

The LM5021 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 currentmode control. The LM5021 features include an ultralow (25 µA) 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 8pin IC has total propagation delays less than 100 ns and a 1-MHz capable oscillator that is programmed with a single resistor.

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Part Features

  • Adjustable Soft-Start
  • Current Mode Control
  • Cycle-by-Cycle Overcurrent Protection
  • Direct Opto-Coupler Interface
  • Hiccup Mode for Continuous Overload Protection
  • Integrated 0.7-A Peak Gate Driver
  • Leading Edge Blanking of Current Sense Signal
  • Maximum Duty Cycle Limiting (80% for LM5021-1 or 50% for LM5021-2)
  • Packages: VSSOP-8 or PDIP-8
  • Single Resistor Programmable Oscillator
  • Skip Cycle Mode for Low Standby Power
  • Slope Compensation (LM5021-1 Only)
  • Synchronizable Oscillator
  • Ultra-low Startup Current (25 u00b5A Maximum)
  • Undervoltage Lockout (UVLO) with Hysteresis

Part Specifications

Input Voltage 15V
Output Voltage 600mV
Output Current 100mA
Supply Voltage Min 8V
Supply Voltage Max 30V
Controller IC Case Style MSOP
No. of Pins 8Pins
Frequency 500kHz
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Base Number 5021
Controller Type PWM
Operating Temperature Range -40°C to +125°C
Supply Voltage Range 8V to 30V
Termination Type Surface Mount Device
RoHS Compliant

Alternative Part Descriptions

  • PWM CONTROLLER, CURR-MODE, MSOP8; Input Voltage:15V; Output Voltage:600mV; Output Current:100mA; Supply Voltage Min:8V; Supply Voltage Max:30V; Controller IC Case Style:MSOP; No. of Pins:8Pins; Frequency:500kHz; Operating TemperatureRoHS Compliant: Yes | Newark Electronics
  • 30V, 1MHZ current mode PWM controller | Texas Instruments

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