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Analog Devices LT8491 | Demoboard DC2703A-A-KIT
High Voltage Buck-Boost Battery Charge Controller with Maximum Power Point Tracking (MPPT) and I2C
Overview
| Topology | Buck-Boost Converter |
| Input voltage | 17-54 V |
| Output 1 | 34 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
More information
All technical functions in detail
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | W (mm) | Fl (mm) | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | H (mm) | Operation Force (Value) (g) | Electrical Life (Cycles) | Actuator Color | Vaporphase process | Pins | Pitch (mm) | Gender | Type | Mount | L (mm) | IR (mA) | Working Voltage (V (AC)) | Contact Resistance (mΩ) | Tol. R | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012208106 | SPEC | 6 files | WCAP-CSGP MLCCs 100 V(DC) | 1 nF | ±10% | 100 | 1206 | -55 °C up to +125 °C | 2.5 | 10 GΩ | X7R Class II | 1.6 | 0.6 | – | – | – | – | – | 0.8 | – | – | – | – | – | – | – | – | – | 3.2 | – | – | – | – | 7" Tape & Reel | ||
| 885012206086 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 3.3 nF | ±10% | 50 | 0603 | -55 °C up to +125 °C | 2.5 | 10 GΩ | X7R Class II | 0.8 | 0.4 | – | – | – | – | – | 0.8 | – | – | – | – | – | – | – | – | – | 1.6 | – | – | – | – | 7" Tape & Reel | ||
| 885012206038 | SPEC | 8 files | WCAP-CSGP MLCCs 16 V(DC) | 4.7 nF | ±10% | 16 | 0603 | -55 °C up to +125 °C | 3.5 | 10 GΩ | X7R Class II | 0.8 | 0.4 | – | – | – | – | – | 0.8 | – | – | – | – | – | – | – | – | – | 1.6 | – | – | – | – | 7" Tape & Reel | ||
| 885012206088 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 6.8 nF | ±10% | 50 | 0603 | -55 °C up to +125 °C | 2.5 | 10 GΩ | X7R Class II | 0.8 | 0.4 | – | – | – | – | – | 0.8 | – | – | – | – | – | – | – | – | – | 1.6 | – | – | – | – | 7" Tape & Reel | ||
| 885012206114 | SPEC | 6 files | WCAP-CSGP MLCCs 100 V(DC) | 10 nF | ±10% | 100 | 0603 | -55 °C up to +125 °C | 2.5 | 10 GΩ | X7R Class II | 0.8 | 0.4 | – | – | – | – | – | 0.8 | – | – | – | – | – | – | – | – | – | 1.6 | – | – | – | – | 7" Tape & Reel | ||
| 885012206045 | SPEC | 8 files | WCAP-CSGP MLCCs 16 V(DC) | 68 nF | ±10% | 16 | 0603 | -55 °C up to +125 °C | 3.5 | 7.4 GΩ | X7R Class II | 0.8 | 0.4 | – | – | – | – | – | 0.8 | – | – | – | – | – | – | – | – | – | 1.6 | – | – | – | – | 7" Tape & Reel | ||
| 885012206048 | SPEC | 8 files | WCAP-CSGP MLCCs 16 V(DC) | 220 nF | ±10% | 16 | 0603 | -55 °C up to +125 °C | 5 | 2.3 GΩ | X7R Class II | 0.8 | 0.4 | – | – | – | – | – | 0.8 | – | – | – | – | – | – | – | – | – | 1.6 | – | – | – | – | 7" Tape & Reel | ||
| 885012206050 | SPEC | 8 files | WCAP-CSGP MLCCs 16 V(DC) | 470 nF | ±10% | 16 | 0603 | -55 °C up to +125 °C | 5 | 1.1 GΩ | X7R Class II | 0.8 | 0.4 | – | – | – | – | – | 0.8 | – | – | – | – | – | – | – | – | – | 1.6 | – | – | – | – | 7" Tape & Reel | ||
 | 7443641000 | SPEC | 8 files | WE-HCF SMT High Current Inductor | – | – | – | 2818 | -40 °C up to +125 °C | – | – | – | 28 | – | 10 | 34.95 | 32.6 | 37 | 2.64 | 18.5 | – | – | – | – | – | – | – | – | – | 27 | – | – | – | – | – | ||
 | 434123050816 | SPEC | – | 5 files | WS-TASV J-Bend SMT Tact Switch 6.0x3.5 mm | – | – | 12 | – | -40 °C up to +85 °C | – | 100 MΩ | – | – | – | – | – | – | – | – | 5 | 160 | 50000 | Black | not specified | – | – | – | – | – | – | 50 | – | – | – | Tape and Reel | |
 | 61200821621 | SPEC | – | 6 files | WR-BHD 2.54 mm Male Box Header | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | – | – | – | – | – | – | – | – | – | – | – | – | 8 | 2.54 | Male | Straight | THT | 17.82 | 3000 | 250 | 20 | max. | Tray |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | W (mm) | Fl (mm) | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | H (mm) | Operation Force (Value) (g) | Electrical Life (Cycles) | Actuator Color | Vaporphase process | Pins | Pitch (mm) | Gender | Type | Mount | L (mm) | IR (mA) | Working Voltage (V (AC)) | Contact Resistance (mΩ) | Tol. R | Packaging | Samples |
|---|