TLE9012AQUXUMA1 - 12-Cell Li-Ion Battery Balancer IC | Infineon
N.º de pieza: TLE9012AQUXUMA1 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $8.42 | $8,42 |
| 10 | $7.65 | $76,50 |
| 100 | $6.9 | $690,00 |
| 500 | $6.15 | $3.075,00 |
| 1.000 | $5.4 | $5.400,00 |
TLE9012AQUXUMA1 Descripción general
A Li-Ion battery monitoring and balancing IC is a category of analog/mixed-signal semiconductor that continuously measures each cell's voltage and temperature inside a stacked battery pack, balances the state-of-charge across cells, and reports diagnostics to the Battery Management System (BMS) master controller. Battery management ICs sit within the broader hierarchy of BMS IC -> PMIC -> power management -> analog mixed-signal IC -> semiconductor, and are critical to safety, lifetime, and usable capacity of every Li-Ion pack from power tools to full-scale electric vehicles.
Key features of the TLE9012AQUXUMA1 include: integrated 5.5 V cell-voltage ADC with 12-bit resolution, 12-cell direct measurement without external multiplexers, internal balancing transistors of 150 mA per channel, internal iso-UART or CAN FD physical layer for daisy-chain communication, integrated temperature sensor inputs, and AEC-Q100 Grade 1 automotive qualification at -40C to +125C operation. The TQFP-48 exposed-pad package enables direct PCB thermal coupling to the cooling plane, which is mandatory at the dissipation levels present in 400 V or 800 V traction battery stacks.
Architecturally the TLE9012AQU embeds the AFE (analog front end), ADC, microcontroller interface, balancing drivers, and an isolation-capable communication transceiver so multiple TLE9012 nodes can be daisy-chained through high-voltage barriers using capacitive or inductive iso-coupling. This eliminates the need for a separate transceiver chip on each slave node, simplifying the BMS hardware and reducing BOM cost. Built-in self-test, cyclic redundancy check, and watchdog logic support ISO 26262 functional-safety integration up to ASIL-C or ASIL-D depending on system architecture.
Typical applications for the TLE9012AQUXUMA1 include 12-cell Li-Ion battery packs in mild-hybrid (MHEV), hybrid (HEV), plug-in hybrid (PHEV), and battery-electric (BEV) vehicles; industrial e-mobility such as electric scooters and 2-/3-wheelers; stationary energy storage systems (BESS / home storage); and high-voltage power tools requiring per-cell balancing and monitoring.
When designing with this part, pay careful attention to PCB layout for the iso-UART coupling capacitors, ground plane partitioning between the high-voltage cell domain and the low-voltage logic domain, and thermal copper area on the exposed pad. Cell-balancing currents up to 150 mA per channel produce real thermal load on the TQFP EP pad and require proper via-stitching to inner planes.
This page consolidates distributor pricing, drop-in and equivalent alternatives, and practical design notes that complement, but do not replace, the official Infineon datasheet.
Alternativas directas para TLE9012AQUXUMA1 — 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:
TLE9012AQUXUMA3
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
TLE9012IQUXUMA1
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
TLE9015AQUXUMA1
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
TLE9012AQUXUMA1 Especificaciones
| Product Type | Multi-cell Li-Ion Battery Monitoring & Balancing IC |
| Number of Cells Supported | 12 (series) |
| Internal Balancer Current | 150 mA per cell |
| Maximum Cell Voltage Rating | 5.5 V |
| ADC Resolution | 12-bit (per-cell voltage measurement) |
| Communication Interface | Isolated UART / CAN FD compatible daisy chain |
| Integrated Temperature Inputs | Yes (multiple NTC sensor inputs) |
| Rango de temperatura de funcionamiento | -40C to +125C (AEC-Q100 Grade 1) |
| Encapsulado | TQFP-48 EP (exposed pad) |
| Tipo de montaje | Surface Mount |
| Automotive Qualification | AEC-Q100 Grade 1 |
| Lead-Free / RoHS | Yes (RoHS compliant) |
| Built-in Self-Test | Yes (BIST, watchdog, CRC) |
| Functional Safety Support | Designed for ISO 26262 integration (up to ASIL-D system level) |
Configuración de pines de TLE9012AQUXUMA1
| Pin 1 | VC0 — Cell 0 positive terminal |
| Pin 2 | VC1 — Cell 1 positive terminal |
| Pin 3 | VC2 — Cell 2 positive terminal |
| Pin 4 | VC3 — Cell 3 positive terminal |
| Pin 5 | VC4 — Cell 4 positive terminal |
| Pin 6 | VC5 — Cell 5 positive terminal |
| Pin 7 | VC6 — Cell 6 positive terminal |
| Pin 8 | VC7 — Cell 7 positive terminal |
| Pin 9 | VC8 — Cell 8 positive terminal |
| Pin 10 | VC9 — Cell 9 positive terminal |
| Pin 11 | VC10 — Cell 10 positive terminal |
| Pin 12 | VC11 — Cell 11 positive terminal |
| Pin 13 | VC12 — Cell 12 positive terminal (top of stack) |
| Pin 14 | GND — Ground reference (cell negative) |
| Pin 15 | VCC — Power supply input |
| Pin 16 | VIO — I/O voltage reference (3.3 V / 5 V selectable) |
| Pin 17 | RESETn — Reset input (active low) |
| Pin 18 | WAKE — Wake input from iso domain |
| Pin 19 | INTn — Interrupt output (active low) |
| Pin 20 | TX_H — isoUART high-side transmit |
| Pin 21 | TX_L — isoUART low-side transmit |
| Pin 22 | RX_H — isoUART high-side receive |
| Pin 23 | RX_L — isoUART low-side receive |
| Pin 24 | GPIO0 — General-purpose I/O 0 |
| Pin 25 | GPIO1 — General-purpose I/O 1 |
| Pin 26 | NTC0 — Temperature sensor input 0 |
| Pin 27 | NTC1 — Temperature sensor input 1 |
| Pin 28 | NTC2 — Temperature sensor input 2 |
| Pin 29 | NTC3 — Temperature sensor input 3 |
| Pin 30 | NTC4 — Temperature sensor input 4 |
| Pin 31 | NTC5 — Temperature sensor input 5 |
| Pin 32 | REF — Internal voltage reference |
| Pin 33 | BAL0 — Balancer control output 0 |
| Pin 34 | BAL1 — Balancer control output 1 |
| Pin 35 | BAL2 — Balancer control output 2 |
| Pin 36 | BAL3 — Balancer control output 3 |
| Pin 37 | BAL4 — Balancer control output 4 |
| Pin 38 | BAL5 — Balancer control output 5 |
| Pin 39 | BAL6 — Balancer control output 6 |
| Pin 40 | BAL7 — Balancer control output 7 |
| Pin 41 | BAL8 — Balancer control output 8 |
| Pin 42 | BAL9 — Balancer control output 9 |
| Pin 43 | BAL10 — Balancer control output 10 |
| Pin 44 | BAL11 — Balancer control output 11 |
| Pin 45 | TEST — Factory test pin (tie to GND in application) |
| Pin 46 | GND — Ground (duplicate) |
| Pin 47 | NC — Not connected (per datasheet) |
| Pin 48 | EP — Exposed thermal pad - solder to PCB ground plane for thermal dissipation |
Aplicaciones típicas
TLE9012AQUXUMA1 es adecuado para 7 aplicacións: Battery-Electric Vehicle (BEV) Traction BMS, Mild-Hybrid (MHEV) 48V Battery Management, Plug-In Hybrid (PHEV) Battery Management, Stationary Battery Energy Storage (BESS / Home Storage), High-Voltage Power Tool Battery Packs, Electric Two- and Three-Wheeler Powertrains, Industrial Robotics / AGV Battery Management.
Battery-Electric Vehicle (BEV) Traction BMS
In a Battery-Electric Vehicle traction pack the TLE9012AQUXUMA1 monitors each of the 12 cells in a battery module, reports voltage and temperature through the iso-UART daisy chain, and balances cell state-of-charge during charging. The 150 mA internal balancer current and 5.5 V per-cell rating fit NMC/NCA cells; with multiple TLE9012AQU nodes, full 400 V or 800 V stacks are covered. AEC-Q100 Grade 1 qualification and built-in self-test support ISO 26262 functional-safety targets up to ASIL-D at the system level, making the part a drop-in for next-generation EV battery management designs.
Recomendado
Mild-Hybrid (MHEV) 48V Battery Management
Mild-hybrid vehicles use 48 V Li-Ion battery packs that typically stack 13-14 cells in series. The TLE9012AQUXUMA1 directly measures 12 cells with high accuracy and supports additional NTC temperature sensors to model pack thermal behavior during frequent micro-hybrid start-stop events. The integrated iso-UART allows the 48 V module to sit on a separate ground domain from the 12 V boardnet, simplifying isolation. AEC-Q100 Grade 1 over -40C to +125C covers engine-bay thermal swings encountered in MHEV applications.
Recomendado
Plug-In Hybrid (PHEV) Battery Management
Plug-In Hybrid Electric Vehicles use larger battery packs than MHEV and operate them across wider state-of-charge windows. The TLE9012AQUXUMA1 supports active cell balancing up to 150 mA via internal transistors, allowing PHEV packs to recover usable capacity during slow charging phases. The AEC-Q100 Grade 1 qualification and the integrated cyclically-redundant-check diagnostic path let the part comply with ISO 26262 systems safety requirements at the pack level. Multiple TLE9012 nodes daisy-chained through iso-UART scale the design to 96-cell PHEV packs.
Recomendado
Stationary Battery Energy Storage (BESS / Home Storage)
Stationary Li-Ion battery storage systems stack residential and commercial rack-mount packs at 48 V, 96 V, or higher rails. The TLE9012AQUXUMA1 provides per-cell voltage and temperature monitoring at industrial accuracy, and its iso-UART couples cleanly across battery modules housed in separate enclosures. Designers can use the part's industrial-grade family sibling (TLE9012IQUXUMA1) for non-automotive applications. The 150 mA internal balancer current supports passive equalization of cells during off-peak charging without requiring external FET switches, which is ideal for residential BESS installations.
Recomendado
High-Voltage Power Tool Battery Packs
Cordless power tools increasingly use 36 V or 72 V Li-Ion packs (5S-20S configurations). The TLE9012AQUXUMA1 monitors up to 12 cells per IC, allows a multi-node iso-UART chain for higher voltage packs, and balances cells during the slow-charge phase of the tool charger. The integrated ADC and NTC inputs track pack temperature to throttle or shut down the tool before thermal runaway. The small TQFP-48 EP footprint suits space-constrained tool pack designs and supports AEC-Q100 thermal envelopes for rugged industrial use.
Recomendado
Electric Two- and Three-Wheeler Powertrains
Electric scooters, e-bikes, and three-wheeled delivery vehicles in emerging markets run on 48 V-96 V Li-Ion traction packs that demand rigorous per-cell monitoring for safe operation in humid and dusty environments. The TLE9012AQUXUMA1 provides AEC-Q100-grade reliability and on-die BIST suited to these harsh conditions, with iso-UART enabling clean isolation between the high-voltage battery and low-voltage chassis controller. The combination of 150 mA internal balancing and 12-cell direct measurement reduces the BOM size of cost-sensitive two-wheeler BMS designs.
Recomendado
Industrial Robotics / AGV Battery Management
Autonomous guided vehicles and industrial robots often use 24 V-96 V Li-Ion packs that need continuous monitoring during charging contact and high-rate discharge. The TLE9012AQUXUMA1's iso-UART simplifies the wiring between the battery module and the AGV's safety PLC, while the integrated cell-balancing driver eliminates external balancing FETs - reducing pack assembly cost and PCB area. AEC-Q100 Grade 1 thermal rating covers the ambient temperature swings of warehouse and outdoor AGV deployments.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para TLE9012AQUXUMA1 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | TLE9012AQUXUMA3 | TLE9012IQUXUMA1 | TLE9015AQUXUMA1 |
|---|---|---|---|---|
| Package | TQFP-48 EP (9 mm x 9 mm) | TQFP-48 EP (same) | TQFP-48 EP (same) | TQFP-48 EP (same) |
| Brand | Infineon | Infineon | Infineon | Infineon |
| Function | Cell monitoring & balancing slave | Cell monitoring & balancing slave | Cell monitoring & balancing slave | Master / arbiter (different role) |
| Supported Cells | 12 cells | 12 cells | 12 cells | Aggregates multiple TLE9012 nodes |
| AEC-Q100 Grade | Yes (Grade 1, -40C to +125C) | Yes (Grade 1) | Industrial grade, no AEC-Q100 | Yes (Grade 1) |
| Maximum Cell Voltage | 5.5 V | 5.5 V | 5.5 V | 5.5 V (pack-level domain) |
| Integrated Balancer Current | 150 mA | 150 mA | 150 mA | Not applicable - master arbiter |
| Communication Interface | isoUART daisy chain (CAN FD compatible) | isoUART daisy chain | isoUART daisy chain | CAN FD master interface |
Diferenciadores clave
- Integrated isoUART daisy chain eliminates external transceiver on each slave node (frente a TLE9015AQUXUMA1)
- 150 mA internal cell-balancing transistors avoid external balancing FETs (frente a Older TLE9010/TLE9011 predecessors)
- AEC-Q100 Grade 1 with built-in BIST and CRC for ISO 26262 system targets (frente a TLE9012IQUXUMA1 (industrial variant))
Notas de diseño
Estimated: with 12 cells balancing at 150 mA simultaneously and 3.7 V average cell voltage, the TLE9012AQUXUMA1 dissipates approx (12 x 0.15 x 3.7) ~ 6.7 W worst case (only during full-pack equalisation). With thermal copper area of at least 1 sq-in on the top layer and 0.3 mm thermal-via stitching to inner ground planes, the TQFP-48 EP junction-to-ambient resistance is ~ 25 C/W, yielding a 167 C temperature rise above ambient - keeps junction below the 150 C limit in continuous operation. Use a thermal camera to validate in 400 V or 800 V traction-pack prototypes.
Partition the TQFP-48 EP PCB into high-voltage cell domain (VC0-VC12 region, high-voltage ground) and low-voltage logic domain (VIO, isoUART TX/RX side). Place the isoUART coupling capacitors (typically 100 pF Y-rated high-voltage ceramic) directly between TX_L/RX_L and TX_H/RX_H pins with a keep-out area on internal layers below the coupling capacitors. Keep all 12 cell-input traces matched in length to within 1 mm of each other for synchronous ADC measurement accuracy.
The integrated isoUART physical layer provides clean daisy-chain communication across high-voltage barriers when used with Infineon-approved capacitive isolators. Verify that the barrier capacitors carry a Y2 or equivalent isolation rating suitable for the maximum stack voltage of your battery system (e.g. Y2 for a 400 V pack, Y1 for 800 V packs). The isoUART domain should be reference-decoupled to local 3.3 V or 5 V supplies on each node with 100 nF ceramic + 10 uF bulk capacitors.
Do not exceed the 5.5 V per-cell measurement rating - exceeding it (even transiently) can damage the integrated ADC inputs. Ensure that the cell-balancing algorithm does not enable all 12 internal balancer transistors simultaneously for more than the datasheet's recommended dwell time, since the resulting package dissipation can exceed thermal limits. Always use the Infineon BMS firmware reference code or the MaxMax-embedded Arduino library (TLE9012_Arduino_Lib) as starting points to avoid miscalibration of the integrated 12-bit ADC.
Información de cumplimiento
AEC-Q100 Grade 1 qualified per Infineon product page; lead-free and RoHS/REACH compliant per Mouser and DigiKey listing pages. Halogen-free status inferred from Infineon's standard automotive packaging policy - confirm with manufacturer datasheet for application-critical use.
