LTM8061IV-8.4#PBF - 32V, 2A Li-Ion Battery Charger µModule | ADI
N.º de pieza: LTM8061IV-8.4#PBF ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $29.95 | $29,95 |
| 10 | $27.5 | $275,00 |
| 100 | $23.95 | $2.395,00 |
| 250 | $21.4 | $5.350,00 |
| 500 | $18.85 | $9.425,00 |
LTM8061IV-8.4#PBF Descripción general
A µModule battery charger is a complete switching-mode charger subsystem co-packaged into a single land-grid-array (LGA) module, eliminating the need for discrete power-stage layout. The LTM8061 uses a constant-current/constant-voltage (CC/CV) charge profile, the standard algorithm required by Li-Ion and Li-Polymer cells. As part of the broader power management IC hierarchy (charger IC -> battery management -> PMIC -> semiconductor), it sits between an unregulated DC source (e.g., 5-32V adapter or solar panel) and a 2-cell Li-Ion/Polymer stack.
Key features include 32V absolute maximum input voltage, 2A programmable charge current via a single external program resistor, an internal safety timer, auto-restart when battery voltage drops 2.5% below float, NTC input for battery temperature qualification, and a C/10 charge-current termination mode. The µModule construction yields high efficiency, low EMI, and a compact footprint, all critical for space-constrained designs where discrete charger layouts would consume excessive PCB area.
The internal architecture combines a current-mode PWM controller, synchronous rectification MOSFETs, an integrated power inductor, and feedback compensation. Built-in input reverse-voltage blocking, output over-voltage protection, and thermal shutdown reduce external component count to just input/output capacitors, program resistor, and the NTC thermistor network. Efficiency peaks above 90% at typical VIN/VOUT ratios due to synchronous rectification.
Typical applications include 2-cell Li-Ion/Polymer pack charging in portable medical devices, industrial handheld instruments, two-way radios, power tools, e-bike accessories, and solar-powered IoT sensor nodes. Its 32V VIN tolerance allows direct connection to 12V/24V industrial bus rails or unregulated adapter outputs, removing the need for pre-regulation.
When designing with the LTM8061IV-9, allocate at least 1 square inch of PCB copper under the LGA thermal pad to achieve rated 2A charge current; the junction-to-ambient thermal resistance dominates at full power. Use the Analog Devices evaluation board layout as a starting point, and respect the keep-out zone around the LGA package to avoid disturbing the magnetic flux path of the integrated inductor.
This page synthesizes distributor pricing, verified drop-in alternatives across same-family variants, and practical PCB layout guidance not found in the manufacturer datasheet alone.
Alternativas directas para LTM8061IV-8.4#PBF — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
LTM8061IV-8.2#PBF
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
LTM8061IV-4.2#PBF
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
LTM8061EV-8.4#PBF
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
LTM8061IV-4.1#PBF
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
LTM8061IY-8.4#PBF
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
LTM8061IV-8.4#PBF Especificaciones
| Topología | Constant-Current / Constant-Voltage (CC/CV) switching charger |
| Battery Chemistry | Lithium-Ion / Lithium-Polymer |
| Number of Cells | 2 cells |
| Float Voltage (Fixed) | 8.4 V |
| Rango de tensión de entrada | 4.95 V to 32 V |
| Maximum Input Voltage (Absolute) | 32 V |
| Maximum Charge Current | 2 A (programmable via external resistor) |
| Encapsulado | 77-LGA (15 mm x 9 mm x 4.32 mm) |
| Tipo de montaje | Surface Mount |
| Rango de temperatura de funcionamiento | -40 C to +125 C (internal) |
| Charge Termination | C/10 current threshold or internal timer |
| Auto-Restart Threshold | 2.5% below float voltage |
| Battery Temperature Sensing | NTC thermistor input (qualified) |
| Integrated Components | Controller, inductor, power switches, compensation |
| Nivel MSL | 3 |
| Estado RoHS | Compliant |
| Lead-Free / Pb-Free | Yes (PBF suffix) |
Guía de configuración de pines de LTM8061IV-8.4#PBF 77-lga (15 mm x 9 mm x 4.32 mm)
Configuración de pines para LTM8061IV-8.4#PBF (encapsulado 77-lga (15 mm x 9 mm x 4.32 mm)). La numeración de pines, las funciones y los diagramas de conexión se definen en la hoja de datos del fabricante. Consúltela para conocer el footprint exacto y las directrices de soldadura.
No hay datos detallados de patillaje disponibles para LTM8061IV-8.4#PBF.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
LTM8061IV-8.4#PBF es adecuado para 6 aplicacións: Portable Medical Device Battery Charging, Industrial Handheld Terminal Charging, Two-Way Radio and Land Mobile Radio, Solar-Powered IoT Sensor Nodes, E-Bike and Personal Mobility Accessories, Power Tool Battery Chargers.
Portable Medical Device Battery Charging
The LTM8061IV-8.4#PBF is well suited for charging 2-cell Li-Ion/Li-Polymer stacks in portable medical devices such as patient monitors, infusion pumps, and handheld diagnostic tools. Its 8.4V fixed float voltage precisely matches the safety-critical 2-cell Li-Ion charging envelope, while the 2A charge current supports rapid turnaround for high-utilization clinical staff. The integrated NTC thermistor input qualifies charging only within the battery's safe temperature window (typically 0C to 45C), satisfying IEC 60601-1 patient-safety expectations. Because the µModule consolidates the controller, inductor, and MOSFETs into a 77-LGA footprint, the charger occupies roughly 15x9 mm, leaving substantial PCB area for analog front-end and wireless modules. Compared to a discrete switching charger IC, the LTM8061's pre-validated EMI performance reduces the risk of regulatory retest and shortens time to FDA submission.
Recomendado
Industrial Handheld Terminal Charging
In industrial barcode scanners, RFID readers, and rugged handhelds, the LTM8061IV-8.4#PBF provides reliable 2-cell Li-Ion charging directly from a wide-input 9-24V industrial bus or 12V/24V vehicle adapter. Its 32V absolute maximum input tolerates load-dump transients on automotive-style power feeds, eliminating the need for upstream TVS clamping. The C/10 termination plus internal safety timer allows unattended overnight top-up cycles without overcharging risk, critical for shift-based industrial fleets. Integrated thermal shutdown and the over-molded LGA package provide mechanical resilience for drop and vibration testing per IEC 60068. The 90%+ efficiency at typical VIN/VOUT ratios minimizes battery-pack thermal stress during high-current charging, extending cycle life in devices that experience two full charge cycles per workday.
Recomendado
Two-Way Radio and Land Mobile Radio
The LTM8061IV-8.4#PBF is frequently specified for professional two-way radios, public-safety land mobile radios, and push-to-talk walkie-talkies using 7.4V (2-cell) Li-Ion battery packs. Its 2A charging rate supports a 0.5C to 1C charge profile for typical 2000-3000 mAh radio batteries, enabling a full top-up within 1-2 hours between shifts. The built-in input reverse-voltage protection guards against accidental reverse-polarity adapter connection in the field, a common failure mode in public-safety use. The compact 77-LGA (15x9 mm) module fits within the charging cradle or battery eliminator housing without crowding RF power-amplifier circuitry. C/10 termination prevents trickle degradation when a radio is left in the charger overnight at the dispatch station.
Recomendado
Solar-Powered IoT Sensor Nodes
For remote solar-charged IoT sensor installations - including agricultural monitoring, environmental telemetry, and asset tracking - the LTM8061IV-8.4#PBF accepts the wide 4.95V-32V input range typical of small photovoltaic arrays with MPPT-less direct connection. The 2A charge current allows rapid replenishment from intermittent sunlight, while the 8.4V float is ideal for 2-cell Li-Ion packs that buffer overnight sensor operation. The auto-restart feature automatically re-initiates charging when battery voltage drops 2.5% below float, supporting cyclical daytime charging without microcontroller supervision. Because the µModule integrates EMI-suppression design, sensor nodes pass CE/FCC radiated emissions without extensive input filtering. Low standby quiescent current preserves dark-mode battery life during extended cloudy periods.
Recomendado
E-Bike and Personal Mobility Accessories
The LTM8061IV-8.4#PBF supports auxiliary 2-cell Li-Ion charging subsystems in e-bike accessories, electric scooters, hoverboards, and personal-mobility devices where a 7.4V pack powers lighting, Bluetooth modules, or display units. Its 32V input withstands the noisy back-EMF and load-dump environment of nearby motor drivers. The 2A charge current rapidly tops up accessory packs between rides, while the thermal-shutdown and timer-based LQR safeguard against the thermal abuse common in unattended charging scenarios. The 77-LGA module's small footprint fits inside handlebar-mounted controller enclosures, and its high efficiency (>90%) reduces heat dissipation in sealed housings. For OEM integration, the same LGA footprint supports the LTM8061IV-4.2#PBF in single-cell accessory designs.
Recomendado
Power Tool Battery Chargers
The LTM8061IV-8.4#PBF can serve as the charger core in 7.4V (2-cell) Li-Ion cordless power tool battery packs and their charging docks. Its 2A charge current suits compact drill, driver, and trimmer tool batteries, while the wide 4.95V-32V input accommodates the rectified mains supply typical of plug-in charger bases. Built-in NTC thermistor qualification enforces the 0C-45C charging window required by Li-Ion chemistry used in cold-start garage or hot job-site conditions, critical for cycle-life preservation. The µModule's compact 15x9 mm LGA package fits within slim wall-plug charger form factors, and the high efficiency eliminates bulky heatsinks. C/10 termination with auto-restart handles the common use case of returning a partially-used tool to the dock for opportunistic top-up without overcharging.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para LTM8061IV-8.4#PBF — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | LTM8061IV-8.2#PBF | LTM8061IV-4.2#PBF | LTM8061EV-8.4#PBF | LTM8061IV-4.1#PBF | LTM8061IY-8.4#PBF |
|---|---|---|---|---|---|---|
| Package | 77-LGA (15x9 mm) | 77-LGA (15x9 mm) - same | 77-LGA (15x9 mm) - same | 77-LGA (15x9 mm) - same | 77-LGA (15x9 mm) - same | 77-LGA (15x9 mm) - same |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Float Voltage | 8.4 V | 8.2 V | 4.2 V (1-cell) | 8.4 V | 4.1 V (1-cell) | 8.4 V |
| Maximum Charge Current | 2 A | 2 A | 2 A | 2 A | 2 A | 2 A |
| Input Voltage Range | 4.95 V to 32 V | 4.95 V to 32 V | 4.95 V to 32 V | 4.95 V to 32 V | 4.95 V to 32 V | 4.95 V to 32 V |
| Battery Chemistry | Li-Ion / Li-Polymer (2-cell) | Li-Ion / Li-Polymer (2-cell) | Li-Ion / Li-Polymer (1-cell) | Li-Ion / Li-Polymer (2-cell) | Li-Ion / Li-Polymer (1-cell) | Li-Ion / Li-Polymer (2-cell) |
| Temperature Grade | Industrial (I suffix) | Industrial | Industrial | Extended (E suffix) | Industrial | Industrial (Y reel) |
| Termination Method | C/10 + Timer | C/10 + Timer | C/10 + Timer | C/10 + Timer | C/10 + Timer | C/10 + Timer |
Diferenciadores clave
- 8.4V float factory-trimmed, eliminating external feedback resistors (frente a LTM8061IV-4.2#PBF)
- Industrial temperature grade (-40C to +125C internal) (frente a LTM8061EV-8.4#PBF)
- Integrated µModule eliminates 15+ discrete components (frente a Discrete LT3650-based switching charger)
Notas de diseño
The LTM8061IV-8.4#PBF in a 77-LGA (15x9 mm) package dissipates up to approximately 2W at 2A charge current with 12V VIN and 8.4V VOUT. Per Analog Devices datasheet 8061fa thermal guidelines, the LGA thermal pad must be soldered to at least 1 square inch (645 mm^2) of PCB copper on inner and outer layers with thermal vias to maintain junction temperature below 125 C. For 2A continuous operation in enclosed housings, attach a small clip-on heatsink or copper pour extension to the pad.
Per the Analog Devices LTM8061 evaluation board (DC1565A) layout, allocate a 5 mm keep-out zone around the LGA package edges to avoid disrupting the integrated inductor's magnetic flux path. Place input capacitors (10 uF X7R minimum) within 3 mm of VIN pins and output capacitors directly adjacent to BAT pins. Use 4-8 thermal vias (0.3 mm drill, 0.5 mm pitch) under the central LGA thermal pad for heat extraction to internal copper planes.
Do not substitute the LTM8061IV-8.4#PBF into a single-cell Li-Ion application - the 8.4V float will permanently damage a 4.2V-max cell and create a safety hazard. Per Analog Devices datasheet 8061fa, the -8.4#PBF suffix designates 2-cell float voltage; for single-cell use, select the LTM8061IV-4.2#PBF or LTM8061IV-4.1#PBF variant. Always verify the suffix matches the target battery stack configuration before PCB assembly.
Información de cumplimiento
Pb-free (PBF suffix) and RoHS compliant per Analog Devices datasheet 8061fa. Not AEC-Q100 qualified - the LTM8061IV-8.4#PBF is a power module charger IC, not an automotive-grade part. Halogen-free status not explicitly stated in available datasheet.
