LM5022 6-60V Wide Vin, Current Mode Boost, SEPIC and Flyback Controller | TI.com

LM5022 (ACTIVE)

6-60V Wide Vin, Current Mode Boost, SEPIC and Flyback Controller

 

Recommended alternative parts

  • LM5122  -  3-65V wider Vin and synchronous

Description

The LM5022 device is a high-voltage, low-side, N-channel MOSFET controller ideal for use in boost and SEPIC regulators. It contains all of the features required to implement single-ended primary topologies. Output voltage regulation is based on current-mode control, which eases the design of loop compensation while providing inherent input voltage feedforward. The LM5022 includes a start-up regulator that operates over a wide input range of 6 V to 60 V. The PWM controller is designed for high-speed capability including an oscillator frequency range up to 2.2 MHz and total propagation delays less than 100 ns. Additional features include an error amplifier, precision reference, line undervoltage lockout, cycle-by-cycle current limit, slope compensation, soft start, external synchronization capability, and thermal shutdown. The LM5022 is available in the 10-pin VSSOP package.

Features

  • Internal 60-V Start-Up Regulator
  • 1-A Peak MOSFET Gate Driver
  • VIN Range: 6 V to 60 V (Operates Down to 3 V After Start-Up)
  • Duty Cycle Limit of 90%
  • Programmable UVLO With Hysteresis
  • Cycle-by-Cycle Current Limit
  • External Synchronizable (AC-Coupled)
  • Single Resistor Oscillator Frequency Set
  • Slope Compensation
  • Adjustable Soft Start
  • 10-Pin VSSOP Package

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WEBENCH ® Designer LM5022

  Min   Max Range
Vin -  V 6.00 to 60.00V
Vout  V 6.00 to 300.00V
Iout  A 10.00A
Ambient Temp   °C -40 to 125 °C
Product Option

Parametrics

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Part number Order Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Duty cycle (Max) (%) Operating temperature range (C) Rating Type Package Group
LM5022 Order now 6     60     1.25     300     1     170     2200     3.5     Enable
Frequency Synchronization
UVLO Adjustable    
90     -40 to 125     Catalog     Controller     VSSOP | 10    
LM25122-Q1 Order now 3     42     3     50     1     50     600     4     Enable
Frequency Synchronization
Phase Interleaving
Synchronous Rectification    
100     -40 to 125     Automotive     Controller     HTSSOP | 20    
LM3017 Order now 5     18     6     20     1     400     400     1.4     Enable
Load Disconnect    
85     -40 to 125     Catalog     Controller     WQFN | 10    
LM3478 Order now 2.97     40     1.26     500     1     100     1000     2.7     Adjustable Current Limit
Enable
Frequency Synchronization
Light Load Efficiency
Pre-Bias Start-Up    
100     -40 to 125     Catalog     Controller     SOIC | 8
VSSOP | 8    
LM3481 Order now 2.97     48     1.275     500     1     100     1000     3.7     Adjustable Current Limit
Enable
Frequency Synchronization
Light Load Efficiency
Pre-Bias Start-Up
UVLO Adjustable    
85     -40 to 125     Catalog     Controller     VSSOP | 10    
LM3488 Order now 2.97     40     1.26     500     1     100