IC-Hersteller Texas Instruments

IC-Hersteller (96)

Texas Instruments LM5160 | Demoboard TIDA-00689

LM5160A, LM5160 Wide Input 65-V, 2-A Synchronous Buck / Fly-Buck™ Converter

Details

TopologieAbwärtswandler
Eingangsspannung10-60 V
Ausgang 15 V / 1.5 A
IC-RevisionC

Beschreibung

The LM516x device is a 65-V, 2-A synchronous stepdownconverter with integrated high-side and low-sideMOSFETs. The constant ON-time control schemerequires no loop compensation and supports highstep-down ratios with fast transient response. Aninternal feedback amplifier maintains ±1% outputvoltage regulation over the entire operatingtemperature range. The ON-time varies inversely withinput voltage resulting in nearly constant switchingfrequency. Peak and valley current limit circuitsprotect against overload conditions. The undervoltagelockout (EN/UVLO) circuit provides independentlyadjustable input undervoltage threshold andhysteresis. The LM5160 is programmed through theFPWM pin to operate in continuous conduction mode(CCM) from no load to full load or to automaticallyswitch to discontinuous conduction mode (DCM) atlight load for higher efficiency. Forced CCM operationsupports multiple output and isolated Fly-Buckapplications using a coupled inductor.

Eigenschaften

Wide 4.5-V to 65-V Input Voltage Range

  • Integrated High-Side and Low-Side Switches– No Schottky Diode Required
  • 2-A Maximum Load Current
  • Constant ON-Time Control– No External Loop Compensation– Fast Transient Response
  • Selectable Forced CCM or DCM Operation
  • CCM Option Supports Multi-Output Fly-Buck™
  • Nearly Constant Switching Frequency
  • Frequency Adjustable Up to 1 MHz
  • Programmable Soft-Start Time
  • Prebiased Start-Up
  • Peak Current Limiting Protection
  • Adjustable Input UVLO and Hysteresis
  • ±1% Feedback Voltage Reference
  • LM5160A Allows External VCC Bias
  • Thermal Shutdown Protection

Typische Anwendungen

  • IGBT Gate Drive Bias Supply
  • Low-Power Isolated DC-DC (Fly-Buck)
  • Telecom Primary and Secondary Side Bias
  • E-Meter Power Line Communication
  • Industrial Programmable Logic Controller

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieCTol. CVR
(V (DC))
BauformBetriebstemperaturDF
(%)
RISOKeramiktypL
(mm)
W
(mm)
H
(mm)
Fl
(mm)
VerpackungL
(µH)
IR
(A)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
L1
(µH)
L2
(µH)
nIR 1
(A)
IR 2
(A)
ISAT 1
(A)
ISAT1
(A)
ISAT2
(A)
RDC1 typ
(mΩ)
RDC2 typ
(mΩ)
RDC1 max
(mΩ)
RDC2 max
(mΩ)
fres 1
(MHz)
Muster
885012206034SPEC
8 Dateien WCAP-CSGP MLCCs 16 V(DC)1 nF ±10% 16 0603 -55 °C up to +125 °C 3.510 GΩ X7R Klasse II 1.6 0.8 0.8 0.4 7" Tape & Reel
885012206087SPEC
8 Dateien WCAP-CSGP MLCCs 50 V(DC)4.7 nF ±10% 50 0603 -55 °C up to +125 °C 2.510 GΩ X7R Klasse II 1.6 0.8 0.8 0.4 7" Tape & Reel
885012206040SPEC
8 Dateien WCAP-CSGP MLCCs 16 V(DC)10 nF ±10% 16 0603 -55 °C up to +125 °C 3.510 GΩ X7R Klasse II 1.6 0.8 0.8 0.4 7" Tape & Reel
885012206095SPEC
8 Dateien WCAP-CSGP MLCCs 50 V(DC)100 nF ±10% 50 0603 -55 °C up to +125 °C 35 GΩ X7R Klasse II 1.6 0.8 0.8 0.4 7" Tape & Reel
885012206048SPEC
8 Dateien WCAP-CSGP MLCCs 16 V(DC)220 nF ±10% 16 0603 -55 °C up to +125 °C 52.3 GΩ X7R Klasse II 1.6 0.8 0.8 0.4 7" Tape & Reel
885012207026SPEC
8 Dateien WCAP-CSGP MLCCs 10 V(DC)10 µF ±10% 10 0805 -55 °C up to +125 °C 100.01 GΩ X7R Klasse II 2 1.25 1.25 0.5 7" Tape & Reel
74404024100SPEC
8 Dateien WE-LQS SMT-Speicherdrossel 2512 -40 °C up to +125 °C 2.5 2 1.2 10 0.65 0.8 430 0.85
74489430220SPEC
7 Dateien WE-TDC SMT-Doppeldrossel 80 8018 -40 °C up to +125 °C 8 8 1.8 22 0.7 1.1 17 22 22 1:1 0.7 0.7 1.1 1.1 1.1 435 435 480 480 17
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieCTol. CVR
(V (DC))
BauformBetriebstemperaturDF
(%)
RISOKeramiktypL
(mm)
W
(mm)
H
(mm)
Fl
(mm)
VerpackungL
(µH)
IR
(A)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
L1
(µH)
L2
(µH)
nIR 1
(A)
IR 2
(A)
ISAT 1
(A)
ISAT1
(A)
ISAT2
(A)
RDC1 typ
(mΩ)
RDC2 typ
(mΩ)
RDC1 max
(mΩ)
RDC2 max
(mΩ)
fres 1
(MHz)
Muster