LM5002 3.1-75V Wide Vin, 0.5A Current Mode Boost, Flyback, Sepic Converter | TI.com

LM5002 (ACTIVE)

3.1-75V Wide Vin, 0.5A Current Mode Boost, Flyback, Sepic Converter

 

Description

The LM5002 high voltage switch mode regulator features all of the functions necessary to implement efficient high voltage boost, flyback, SEPIC and forward converters, using few external components. This easy to use regulator integrates a 75-V N-Channel MOSFET with a 0.5-A peak current limit. Current mode control provides inherently simple loop compensation and line-voltage feed-forward for superior rejection of input transients. The switching frequency is set with a single resistor and is programmable up to 1.5 MHz. The oscillator can also be synchronized to an external clock. Additional protection features include: current limit, thermal shutdown, undervoltage lockout and remote shutdown capability. The device is available in both 8-pin SOIC and 8-pin WSON packages. To create a custom regulator design, use the LM5005 with WEBENCH® Power Designer.

Features

  • Integrated 75-V N-Channel MOSFET
  • Ultra-Wide Input Voltage Range from 3.1 V to 75 V
  • Integrated High Voltage Bias Regulator
  • Adjustable Output Voltage
  • 1.5% Output Voltage Accuracy
  • Current Mode Control with Selectable Compensation
  • Wide Bandwidth Error Amplifier
  • Integrated Current Sensing and Limiting
  • Integrated Slope Compensation
  • 85% Maximum Duty Cycle Limit
  • Single Resistor Oscillator Programming
  • Oscillator Synchronization Capability
  • Enable and Undervoltage Lockout (UVLO) Pin
  • 8-Pin SOIC Package
  • 8-Pin WSON Package
  • Thermal Shutdown With Hysteresis

Appliwcations

  • DC-DC Power Supplies for Industrial, Communications, and Automotive Applications
  • Boost, Flyback, SEPIC, and Forward Converter Topologies

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WEBENCH® Designer LM5002

  Min   Max Range
Vin  V 3.1 to 75.0V
Vout  V 3.1 to 75V
Iout  A ≤ 0.5A
Ambient Temp  °C -40 to 125°C

Parametrics

Compare all products in Boost converters (integrated switch) Email Download to Excel
Part number Order Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Switch current limit (Typ) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Duty cycle (Max) (%) Operating temperature range (C) Type Rating Package Group
LM5002 Order now 3.1     75     1.26     75     0.5     1     50     1500     3.1     Enable
Frequency Synchronization    
85     -40 to 125     Converter     Catalog     SOIC | 8
WSON | 8    
LM5001 Order now 3.1     75     1.26     75     1     1     50     1500     3.1     Enable
Frequency Synchronization
UVLO Adjustable    
85     -40 to 125     Converter     Catalog     SOIC | 8
WSON | 8    
LM5001-Q1 Order now 3.1     75     1.26     75     1     1     225     1500     3.1     Enable
Frequency Synchronization
UVLO Adjustable    
85     -40 to 125     Converter     Automotive     SOIC | 8