LM5032 High Voltage Dual Interleaved Current Mode Controller | TI.com

LM5032
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High Voltage Dual Interleaved Current Mode Controller

 

Description

The LM5032 dual current mode PWM controller contains all the features needed to control either two independent forward dc/dc converters or a single high current converter comprised of two interleaved power stages. The two controller channels operate 180° out of phase thereby reducing input ripple current. The LM5032 includes a startup regulator that operates over a wide input range up to 100 V and compound (bipolar + CMOS) gate drivers that provide a robust 2.5-A peak sink current. The adjustable maximum PWM duty cycle reduce stress on the primary side MOSFET switches. Additional features include programmable line undervoltage lockout, cycle-by-cycle current limit, hiccup mode fault operation with adjustable response time, PWM slope compensation, soft-start, and a 2-MHz capable oscillator with synchronization capability.

For all available packages, see the orderable addendum at the end of the datasheet.

Features

  • Two Independent PWM Current Mode Controllers
  • Integrated High-Voltage Startup Regulator
  • Compound 2.5-A Main Output Gate Drivers
  • Single Resistor Oscillator Setting to 2 MHz
  • Synchronizable Oscillator
  • Programmable Maximum Duty Cycle
  • Maximum Duty Cycle Fold-Back at High-Line Voltage
  • Adjustable Timer for Hiccup Mode Current Limiting
  • Integrated Slope Compensation
  • Adjustable Line Undervoltage Lockout
  • Independently Adjustable Soft-Start (Each Regulator)
  • Direct Interface with Opto-Coupler Transistor
  • Thermal Shutdown
  • TSSOP 16-Pin Package

Parametrics

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Part number Order Topology Control method VCC (Min) (V) VCC (Max) (V) Frequency (Max) (kHz) UVLO thresholds on/off (V) Duty cycle (Max) (%) Gate drive (Typ) (A) Features Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
LM5032 Order now Flyback
Forward    
Current     8     15     2000     Programmable/1.25V     80     2.5     Adjustable Switching Frequency
Current Limiting
HV Start-up
Multi-topology
Programmable Max Duty Cycle
Synchronization Pin    
Catalog     -40 to 125     TSSOP | 16     16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)    
LM25037 Order now Full-Bridge
Half-Bridge
Push-Pull    
Current
Feedforward
Voltage    
8     14     2000     Programmable/1.25V     96     1.2     Adjustable Switching Frequency
Current Limiting
HV Start-up
Multi-topology
Programmable Max Duty Cycle
Programmable Soft Start
Synchronization Pin    
Catalog     -40 to 125     TSSOP | 16     16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)