IC manufacturers Texas Instruments

IC manufacturers (103)

Texas Instruments LM5180

LM5180 65-VIN PSR Flyback DC/DC Converter with 100-V, 1.5-A Integrated Power MOSFET

Overview

TopologyFlyback Converter
Input voltage4.5-65 V
Switching frequency12-350 kHz
Output 15 V / 1.5 A

Description

The LM5180 is a primary-side regulated (PSR) fly back converter with high efficiency over a wide input voltage range of 4.5 V to 65 V. The isolated output voltage is sampled from the primary-side fly back voltage,eliminating the need for an optocoupler,voltage reference,or third winding from the transformer for output voltage regulation.The high level of integration results in a simple,reliable and high-density design with only one component crossing the isolation barrier. Boundary conduction mode (BCM) switching enables a compact magnetic solution and better than ±1.5% load andline regulation performance. An integrated 100-V power MOSFET provides output power up to 7 W with enhanced headroom for line transients.The LM5180 flyback converter is available in a 8-pin,4-mm × 4-mm, thermally enhanced WSON package with 0.8-mm pin pitch.

Features

  • Designed for reliable and rugged applications
  • Wide input voltage range of 4.5 V to 65 V withoperation down to 3.5 V after start-up
  • Robust solution with only one componentcrossing the isolation barrier
  • ±1.5% total output regulation accuracy
  • Optional VOUT temperature compensation
  • 6-ms internal or programmable soft start
  • Input UVLO and thermal shutdown protection
  • Hiccup-mode overcurrent fault protection
  • –40°C to +150°C junction temperature range
  • Integration reduces solution size and cost
  • Integrated 100-V, 0.4-Ω power MOSFET
  • No opto-coupler or transformer auxiliarywinding required for VOUT regulation
  • Internal loop compensation
  • High-efficiency PSR flyback operation
  • Quasi-resonant MOSFET turn-off in BCM
  • Low input quiescent current
  • External bias option for improved efficiency
  • Single- and multi-output implementations
  • Ultra-low conducted and radiated EMI signatures
  • Soft switching avoids diode reverse recovery
  • Optimized for CISPR 32 EMI requirements
  • Create a custom regulator design usingWEBENCH® Power Designer

Typical applications

  • Motor drives: IGBT and SiC gate drive supplies, Isolated bias supplies
  • Isolated field transmitters and field actuators, Multi-output rails for analog input modules, Building automation HVAC systems

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesCTol. CVR
(V (DC))
SizeOperating TemperatureDF
(%)
RISOCeramic TypeL
(mm)
W
(mm)
H
(mm)
Fl
(mm)
PackagingVINVOut1
(V)
IOut1
(mA)
VOut2
(V)
IOut2
(mA)
L
(µH)
nISAT
(A)
LS
(µH)
VT
(V (AC))
IC Reference Samples
885012109004SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 6.3 V(DC)100 µF ±20% 6.3 1210 -55 °C up to +85 °C 100.001 GΩ X5R Class II 3.2 2.5 2.5 0.6 7" Tape & Reel
750313974SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WE-FLYLT Flyback Transformers for Linear Technology EP10 -40 °C up to +125 °C 13.34 15.24 11.43 Tape and Reel 8 - 32 V (DC) 5 360 5 360 40 3:1:1 2 1 1500 LT8301
750317605SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WE-FLYTI Flyback Transformers EP7 -40 °C up to +125 °C 9.78 9.5 10.54 Tape and Reel 12 - 70 V (DC) 5 1000 30 3:1 2.6 0.9 625
750317595SPEC

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

8 files Active i| Production is active. Expected lifetime: >10 years.WE-FLYTI Flyback Transformers EP7 -40 °C up to +125 °C 9.76 9.5 10.54 8 - 65 V (DC) 15 200 8 200 30 1.82:1.82:1 2.4 0.5 1500
Order Code Data­sheet Simu­lation
885012109004SPEC
750313974SPEC
750317605SPEC
750317595SPEC

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesCTol. CVR
(V (DC))
SizeOperating TemperatureDF
(%)
RISOCeramic TypeL
(mm)
W
(mm)
H
(mm)
Fl
(mm)
PackagingVINVOut1
(V)
IOut1
(mA)
VOut2
(V)
IOut2
(mA)
L
(µH)
nISAT
(A)
LS
(µH)
VT
(V (AC))
IC Reference Samples