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reference designUCC21225 | Demoboard PMP23332

Texas Instruments UCC21225 | Demoboard PMP23332

Interleaved and multiphase inverting buck-boost converter reference design

Overview

TopologyBoost Converter
Input voltage-62 - -36 V
Output 152 V / 14 A
IC revisionA

Description

This reference design uses the UCD3138064A as a digital controller to control inverting buck-boost with the capability of supporting two-phase peak current mode control. The soft-switching technology is used in this design to improve the power efficiency. The input voltage range is -62 V to -36 V. The output voltage range is adjustable from 28 V to 52 V. The default output voltage is 48-V with a maximum current of 14 A.

Features

  • High efficiency above 97.1%
  • Interleaved two-phase peak current mode (PCM) control
  • Three phases with voltage mode (VM) control
  • Zero voltage switching of MOSFETs
  • Pre-biased start up
  • Current balancing between phases

Typical applications

  • Non-isolated battery backup unit
  • Transformer-based DC/DC converter (100W~400W)

More information

Parts approved by Texas Instruments

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(nH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC max.(mΩ)
fres(MHz)
Wire Type
LR(nH)
IR(A)
RDC(mΩ)
Material
SamplesAvailability & Sample
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744301033
SPECWE-HCM SMT High Current Flat Wire Inductor, 330 nH, 56 A

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.

Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCM SMT High Current Flat Wire Inductor
Inductance330 nH
Performance Rated Current56 A
Saturation Current @ 10%44.9 A
Saturation Current @ 30%48.9 A
–
Self Resonant Frequency28 MHz
–
Rated Inductance325 nH
Rated Current38 A
DC Resistance0.32 mΩ
MaterialMnZn 
–Check availability
744308040
SPECWE-HCM SMT High Current Flat Wire Inductor, 400 nH, 54.3 A

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.

Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCM SMT High Current Flat Wire Inductor
Inductance400 nH
Performance Rated Current54.3 A
Saturation Current @ 10%23.8 A
Saturation Current @ 30%28.3 A
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Self Resonant Frequency25 MHz
–
Rated Inductance345 nH
Rated Current25 A
DC Resistance0.37 mΩ
MaterialMnZn 
–Check availability
7443641000
SPECWE-HCF SMT High Current Inductor, 10000 nH, 34.95 A

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.

Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCF SMT High Current Inductor
Inductance10000 nH
Performance Rated Current34.95 A
Saturation Current @ 10%32.6 A
Saturation Current @ 30%37 A
DC Resistance2.64 mΩ
Self Resonant Frequency13 MHz
Wire TypeFlat 
Rated Inductance9500 nH
Rated Current35 A
DC Resistance2.4 mΩ
MaterialMnZn 
–Check availability
7443642200
SPECWE-HCF SMT High Current Inductor, 22000 nH, 34.95 A

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.

Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCF SMT High Current Inductor
Inductance22000 nH
Performance Rated Current34.95 A
Saturation Current @ 10%15.5 A
Saturation Current @ 30%18 A
DC Resistance2.64 mΩ
Self Resonant Frequency9 MHz
Wire TypeFlat 
Rated Inductance5000 nH
Rated Current35 A
DC Resistance2.4 mΩ
MaterialMnZn 
–Check availability