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reference designUCC28910 | Demoboard PMP31276

Texas Instruments UCC28910 | Demoboard PMP31276

288W PFC, LLC and bidirectional battery charger reference design

Overview

TopologyFlyback Converter
Input voltage20-450 V
IC revisionJULY 2026

Description

This reference design is an AC/DC battery-backup charger with two outputs: system and battery. A 4-SW bidirectional buck-boost charges the battery and supplies system load. An optional microcontroller disables main power sections, reducing stand-by power while collecting parameters for telemetry.

Features

Cycle-by-cycle overcurrent protectionDiscontinuous conduction mode (DCM) and continuous conduction mode (CCM) operationLow standby powerUltra-wide input range

Typical applications

  • Fire Alarm control panel

More information

Parts approved by Texas Instruments

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
C
Tol. C
VR(V (DC))
Size
Qmin.
DF(%)
RISO
Ceramic Type
L(mm)
W(mm)
H(mm)
Fl(mm)
Packaging
Operating Temperature
Q
L(µH)
IR(A)
ISAT(A)
RDC max.(mΩ)
fres(MHz)
SamplesAvailability & Sample
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885012006053
SPECWCAP-CSGP MLCCs 50 V(DC), 22 pF, ±5%
Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
Capacitance22 pF
Capacitance±5% 
Rated Voltage50 V (DC)
Size0603 
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Insulation Resistance10 GΩ
Ceramic TypeNP0 Class I 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
Operating Temperature -55 °C up to +125 °C
Q-Factor840 
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885342208009
SPECWCAP-CSMH Mid and High Voltage, 10 nF, ±10%
Simu­lation
Availability
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Downloads8 files

RF & Microwave simulation models

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSMH Mid and High Voltage
Capacitance10 nF
Capacitance±10% 
Rated Voltage500 V (DC)
Size1206 
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Dissipation Factor2.5 %
Insulation Resistance10 GΩ
Ceramic TypeX7R Class II 
Length3.2 mm
Width1.6 mm
Height1.25 mm
Pad Dimension0.6 mm
Packaging7" Tape & Reel 
Operating Temperature -55 °C up to +125 °C
Q-Factor600 
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885012206095
SPECWCAP-CSGP MLCCs 50 V(DC), 100 nF, ±10%
Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
Capacitance100 nF
Capacitance±10% 
Rated Voltage50 V (DC)
Size0603 
Q-Factor [1]600 
Dissipation Factor3 %
Insulation Resistance5 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
Operating Temperature -55 °C up to +125 °C
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885012208069
SPECWCAP-CSGP MLCCs 25 V(DC), 10 µF, ±10%
Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 25 V(DC)
Capacitance10 µF
Capacitance±10% 
Rated Voltage25 V (DC)
Size1206 
Q-Factor [1]600 
Dissipation Factor10 %
Insulation Resistance0.01 GΩ
Ceramic TypeX7R Class II 
Length3.2 mm
Width1.6 mm
Height1.6 mm
Pad Dimension0.5 mm
Packaging7" Tape & Reel 
Operating Temperature -55 °C up to +125 °C
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7687714471
SPECWE-PD HV SMT Power Inductor (High Voltage), –, –
Simu­lation
Availability
–
Downloads10 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-PD HV SMT Power Inductor (High Voltage)
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Size1060 
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Length10 mm
Width10 mm
Height6 mm
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Operating Temperature -40 °C up to +125 °C
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Inductance470 µH
Rated Current0.6 A
Saturation Current0.8 A
DC Resistance1450 mΩ
Self Resonant Frequency2.7 MHz
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