IC manufacturers Texas Instruments

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Texas Instruments LM5161 | Demoboard TIDM646

LM5161 Wide Input 100-V, 1-A Synchronous Buck/Fly-Buck™ Converter

Overview

TopologyBuck-Boost Converter
Input voltage-36 - -62 V
Output 156 V / 18 A
IC revision1

Description

This reference design uses UCD3138064A as a digital controller to control two-phase two-rail inverting buck-boost. This non-isolated converter is used for wireless radio power. The input voltage is from -35 V to -60 V. There are two outputs. The default output voltage of rail 1 is 32 V and max current is 8.5 A; the default output voltage of rail 2 is 48 V and max current is 5.5 A. The output voltage is adjustable from 30 V to 56 V. With some component changes and firmware changes, the hardware can be used for current mode control or transition mode control to increase power and improve load transient. Test results of three controls are provided respectively.

Features

  • Inverting buck boost for -48-V to 48-V system
  • Transient response with less than +/- 3% overshoot/undershoot voltage

Typical applications

  • IGBT Gate Drive Bias Supply
  • E-Meter Power Line Communication
  • Industrial Programmable Logic Controller

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(nH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC max.
(mΩ)
fres
(MHz)
LR
(nH)
IR
(A)
RDC
(mΩ)
Material Samples
744308040SPEC

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN 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-HCM SMT High Current Flat Wire Inductor 400 54.3 23.8 28.3 0.396 25 345 25 0.37 MnZn
7443642200SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-HCF SMT High Current Inductor 22000 34.95 15.5 18 2.64 9 5000 35 2.4 MnZn
Order Code Data­sheet Simu­lation
744308040SPEC

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

7443642200SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(nH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC max.
(mΩ)
fres
(MHz)
LR
(nH)
IR
(A)
RDC
(mΩ)
Material Samples