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IC manufacturers ADI Power by Linear

ADI Power by Linear LT8491 | Demoboard DC2703A-A-KIT

High Voltage Buck-Boost Battery Charge Controller with Maximum Power Point Tracking (MPPT) and I2C

Overview

TopologyBuck-Boost Converter
Input voltage17-54 V
Output 134 V / 16.6 A

Description

The DC2703A-A-KIT contains the DC2703A (LT8491demo board) and DC1613A (USB-to-I2C controller). Together they provide a high performance buck-boost battery charger converter with an I2C interface. The LT8491 implements a maximum power point tracking (MPPT) function and flexible charging profiles, suitable for most battery types such as flooded and sealed lead acid batteries and Li-Ion batteries. A Microsoft Windows-Based GUI (Graphical User Interface) application called “simpleLT8491” is provided which can be downloaded

Features

  • VIN Range: 6V to 80V
  • VB AT Range: 1.3V to 80V
  • Single Inductor Allows VIN Above, Below, or Equal to VB AT
  • Automatic MPPT for Solar Powered Charging
  • Automatic Temperature CompensationnI2C Telemetry and Configuration
  • Internal EEPROM for Configuration Storage
  • Operation from Solar Panel or DC Supply
  • Four Integrated Feedback Loops
  • Synchronizable Fixed Frequency: 100kHz to 400kHz
  • 64-Lead (7mm × 11mm × 0.75mm) QFN Package

Typical applications

  • The DC2703A-A-KIT demo board is configured for 17Vto 54V input voltage range and the power source can be a solar panel with 36 to 72 cells (up to 200W)
  • High Voltage Buck-Boost Battery Charge Controller with Maximum Power Point Tracking (MPPT) and I2C

Products

Order Code Data­sheet Downloads Product seriesCTol. CVR
(V (DC))
SizeDF
(%)
RISOCeramic TypeW
(mm)
Fl
(mm)
Technical ReferenceOperating TemperatureL
(µH)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
H
(mm)
Operation Force
(g)
Actuator ColorPins
(mm)
Pitch
(mm)
GenderTypeMountL
(mm)
IR
(A)
Working Voltage
(V (AC))
Contact Resistance
(mΩ)
Tol. RPackaging Samples
885012208106SPEC
7 files WCAP-CSGP MLCCs 100 V(DC)1 nF ±10% 100 1206 2.510 GΩ X7R Class II 1.6 0.6 X7R1206102K100DFCT10000 -55 °C up to +125 °C 0.8 3.2
885012206086SPEC
7 files WCAP-CSGP MLCCs 50 V(DC)3.3 nF ±10% 50 0603 2.510 GΩ X7R Class II 0.8 0.4 X7R0603332K050DFCT10000 0.8 1.6
885012206038SPEC
7 files WCAP-CSGP MLCCs 16 V(DC)4.7 nF ±10% 16 0603 3.510 GΩ X7R Class II 0.8 0.4 X7R0603472K016DFCT10000 0.8 1.6
885012206088SPEC
7 files WCAP-CSGP MLCCs 50 V(DC)6.8 nF ±10% 50 0603 2.510 GΩ X7R Class II 0.8 0.4 X7R0603682K050DFCT10000 0.8 1.6
885012206114SPEC
7 files WCAP-CSGP MLCCs 100 V(DC)10 nF ±10% 100 0603 2.510 GΩ X7R Class II 0.8 0.4 X7R0603103K100DFCT10000 -55 °C up to +125 °C 0.8 1.6
885012206045SPEC
7 files WCAP-CSGP MLCCs 16 V(DC)68 nF ±10% 16 0603 3.57.4 GΩ X7R Class II 0.8 0.4 X7R0603683K016DFCT10000 0.8 1.6
885012206048SPEC
7 files WCAP-CSGP MLCCs 16 V(DC)220 nF ±10% 16 0603 52.3 GΩ X7R Class II 0.8 0.4 X7R0603224K016DFCT10000 0.8 1.6
885012206050SPEC
7 files WCAP-CSGP MLCCs 16 V(DC)470 nF ±10% 16 0603 51.1 GΩ X7R Class II 0.8 0.4 X7R0603474K016DFCT10000 0.8 1.6
7443641000SPEC
9 files WE-HCF SMT High Current Inductor 2818 28 -40 °C up to +125 °C 10 37 2.4 13 18.5 2 SMT 27 30
434123050816SPEC
5 files WS-TASV J-Bend SMT Tact Switch 6.0x3.5 mm 12100 MΩ 5 160 Black 0.05 Tape and Reel
61200821621SPEC
6 files WR-BHD 2.54 mm Male Box Header1000 MΩ 8 2.54 Male Straight THT 17.82 3 250 20 max. Tray
Samples
Order Code Data­sheet Downloads Product seriesCTol. CVR
(V (DC))
SizeDF
(%)
RISOCeramic TypeW
(mm)
Fl
(mm)
Technical ReferenceOperating TemperatureL
(µH)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
H
(mm)
Operation Force
(g)
Actuator ColorPins
(mm)
Pitch
(mm)
GenderTypeMountL
(mm)
IR
(A)
Working Voltage
(V (AC))
Contact Resistance
(mΩ)
Tol. RPackaging Samples