LT8490EUKJ - 80V 10A MPPT Buck-Boost Battery Charger | Analog Devices
Référence : LT8490EUKJ ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $32.0673 | $32,07 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1 000 | $0 | $0,00 |
LT8490EUKJ Présentation
A buck-boost battery charger is a power-management IC that regulates charging power whether the source voltage is above or below the battery voltage. The LT8490 belongs to the switching-regulator hierarchy and supports sealed lead-acid, flooded, gel, and lithium-ion batteries. Its constant-current constant-voltage, or CCCV, profile transitions from controlled charging current to controlled battery voltage as the pack approaches its final voltage.
Key verified characteristics include an 80 V maximum input, charging capability up to 10 A, and maximum power point tracking for photovoltaic systems. The buck-boost topology allows operation when the input-to-battery voltage relationship changes during the day. This is especially useful in solar installations where irradiance, temperature, and module operating point vary throughout the charge cycle.
The device integrates the control functions needed to coordinate harvested power and battery charging rather than operating as a simple linear regulator. MPPT helps the charger seek the available solar-array maximum-power point, while CCCV manages battery chemistry and final voltage. Detailed switching frequency, accuracy, quiescent current, protection thresholds, and thermal data require confirmation in the current Analog Devices datasheet.
Typical uses include solar-powered remote instrumentation, off-grid battery systems, portable industrial equipment, renewable-energy storage, and backup power installations. These systems benefit from charging when panel voltage may be lower or higher than the battery voltage. High-current capability also supports larger battery banks where wiring, fusing, thermal design, and connector selection require careful engineering.
For implementation, verify the exposed-pad land pattern, inductor and MOSFET selection, compensation, current sensing, and thermal paths against the manufacturer datasheet. The MPPT controls and charging settings must be configured for the selected chemistry. Input transients and battery transients need protection appropriate to the installation, especially for long cable runs and outdoor photovoltaic systems.
This page combines verified distributor information, manufacturer product facts, design guidance, and honest replacement analysis. It distinguishes confirmed electrical facts from unverified parameters rather than inferring missing values, helping engineers evaluate the LT8490EUKJ for high-voltage, multi-chemistry battery charging before requesting detailed pricing.
Alternatives de remplacement direct pour LT8490EUKJ — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
LT8490EUKJ#PBF
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
LT8490EUKJ#TRPBF
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
LT8490EUKJ Spécifications
| Device Type | Buck-Boost Switching Battery Charge Controller |
| Maximum Input Voltage | 80 V |
| Maximum Charge Current | 10 A |
| Input Operating Range | 1.3 V to 80 V |
| Charge Profile | Constant-Current Constant-Voltage (CCCV) |
| Solar Tracking | Maximum Power Point Tracking (MPPT) |
| Supported Battery Chemistry | Sealed Lead-Acid, Flooded, Gel, and Lithium-Ion Batteries |
| Topologie | Buck-Boost |
| Boîtier | HVQFN-64, 7 mm x 11 mm |
| Nombre de broches | 64 pins |
| Type de montage | Surface Mount |
| Temperature Grade | Automotive |
| Package Code | HVQCCN |
| Surface Mount | Yes |
Guide de configuration des broches du LT8490EUKJ hvqccn
Configuration des broches du LT8490EUKJ (boîtier hvqccn). La numérotation des broches, les fonctions et les schémas de connexion sont définis dans la fiche technique du fabricant. Consultez-la pour l'empreinte exacte et les directives de soudage.
Aucune donnée de brochage détaillée disponible pour LT8490EUKJ.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
LT8490EUKJ convient pour 6 applications: Solar-Powered Remote Instrumentation, Off-Grid Renewable Energy Storage, Industrial Backup Power Systems, Portable Equipment Battery Charging, Renewable-Powered Data Acquisition, Backup Systems for Critical Controls.
Solar-Powered Remote Instrumentation
The LT8490EUKJ fits remote telemetry, environmental monitoring, and industrial sensor installations where a photovoltaic source may operate above or below the battery voltage during changing irradiance. Its verified 1.3 V to 80 V input range, buck-boost architecture, and MPPT support help extract available solar power while the 10 A capability supports higher-current battery platforms. Design the array against the lowest expected irradiance and highest panel temperature, then validate charge time with realistic cable and temperature losses.
Recommandé
Off-Grid Renewable Energy Storage
The LT8490EUKJ is suited to off-grid storage systems where renewable generation and backup sources can operate on either side of the battery voltage. Buck-boost regulation avoids restricting operation to one fixed source-to-battery polarity, while MPPT improves harvested solar energy. The 80 V input and up-to-10 A charging capability suit larger systems, but the final battery voltage, absorption behavior, and allowable charge rate must be confirmed with the battery manufacturer before enabling charging.
Recommandé
Industrial Backup Power Systems
An industrial backup installation can use the LT8490EUKJ to manage energy from a wide-range source while maintaining a regulated battery charge profile. CCCV operation supports the staged charging process used by multiple battery families, and the automotive-grade package marking makes the device relevant to harsh-duty designs. Qualification still requires reviewing the exact electrical grade, operating-temperature limits, isolation, fusing, fault response, and enclosure thermal performance rather than relying on package labeling alone.
Recommandé
Portable Equipment Battery Charging
The LT8490EUKJ can support portable industrial or service equipment that must recharge from a source whose voltage varies substantially. Buck-boost operation preserves charging flexibility when the available input is below the pack voltage during one operating phase and above it during another. Up-to-10 A capability enables higher-rate packs, although portability also demands careful battery protection, connector current handling, enclosure ventilation, and chemistry-specific charge-profile validation.
Recommandé
Renewable-Powered Data Acquisition
Data-acquisition installations in the field often combine batteries with intermittent solar power and require autonomous recharge control. The LT8490EUKJ's MPPT function, wide input range, and CCCV profile align with those needs, allowing harvested power to regulate the battery even when panel voltage changes throughout the day. Designers should calculate worst-case seasonal solar contribution, include standby-load budgeting, and protect the charger from reverse battery current and wiring-borne transients for reliable remote operation.
Recommandé
Backup Systems for Critical Controls
The LT8490EUKJ is applicable to backup-energy systems serving controls, communications, or instrumentation where predictable recharge behavior is important. Constant-current charging limits the initial charging demand, while constant-voltage operation completes the charge without continuously increasing battery voltage. Mission-critical designs should add independent battery and input protection, verify fault behavior, define safe recovery procedures, and conduct thermal testing at the maximum ambient temperature and repeated full-charge load.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour LT8490EUKJ — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | LT8490EUKJ#PBF | LT8490EUKJ#TRPBF |
|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices |
| Package | HVQCN-64 (7 mm x 11 mm) | HVQCN-64 (7 mm x 11 mm) | HVQCN-64 (7 mm x 11 mm) |
| Maximum Input Voltage | 80 V | 80 V | 80 V |
| Input Operating Range | 1.3 V to 80 V | 1.3 V to 80 V | 1.3 V to 80 V |
| Maximum Charge Current | 10 A | 10 A | 10 A |
| Topology | Buck-Boost | Buck-Boost | Buck-Boost |
| Charging Profile | CCCV | CCCV | CCCV |
| Solar MPPT | Supported | Supported | Supported |
| Supported Battery Chemistries | Sealed Lead-Acid, Flooded, Gel, and Lithium-Ion | Sealed Lead-Acid, Flooded, Gel, and Lithium-Ion | Sealed Lead-Acid, Flooded, Gel, and Lithium-Ion |
| Ordering Presentation | Base MPN; #PBF and #TRPBF identified as distributor order codes | #PBF ordering code | #TRPBF tape-and-reel ordering code |
Principaux différenciateurs
- Wide buck-boost charging input range (vs Typical fixed-polarity buck chargers)
- Photovoltaic optimization is integrated (vs Basic CCCV chargers without MPPT)
- Multi-chemistry integration (vs Single-chemistry charge controllers)
- High-current charging in a compact surface-mount package (vs Lower-current charger ICs)
Notes de conception
Treat the HVQCN exposed pad as the primary thermal and electrical land. Use the manufacturer land pattern and thermal data rather than assuming that the exposed pad is only mechanical. Estimated: converter loss depends on input voltage, output voltage, charge current, switching frequency, and component efficiency, none of which were supplied, so a defensible junction-temperature calculation cannot be completed from the verified data. Validate worst-case ambient, repeated full-current charging, copper area, and enclosure temperature.
Route the high-current input, switch-node, inductor, sense, and battery paths with short, wide copper paths while keeping sensitive control and MPPT signals away from switching nodes. Place input, switching, and capacitor connections according to the current Analog Devices application circuit. Validate creepage, clearance, input surge protection, fusing, and connector current ratings for an 80 V system; low-voltage board-design assumptions are not appropriate.
Set charge current and voltage only from the battery manufacturer's specified limits, then verify fault and restart behavior for disconnected batteries, cold conditions, and open-current-sense conditions. The verified 10 A maximum does not mean every battery or enclosure can accept 10 A. Check MOSFET voltage and current ratings, inductor saturation current, shunt dissipation, trace heating, fuse coordination, and reverse-current behavior during system shutdown.
Do not treat MPPT as an automatic guarantee of maximum harvested energy. Panel sizing, orientation, partial shading, calibration limits, and ambient temperature can reduce available power. A multi-string array may also require per-string blocking or bypass decisions outside this single-controller solution. Validate MPPT behavior across the expected solar-module curve and confirm that a three-stage lead-acid profile or lithium charge method is configured correctly.
Informations de conformité
The verified distributor record identifies LT8490EUKJ#PBF and an automotive temperature grade, but no explicit RoHS, REACH, AEC-Q100, halogen-free, or conflict-minerals declarations were supplied. Confirm these claims using current Analog Devices documentation before procurement.
