Precision voltage/temperature monitoring, balancing and battery health monitoring for Li-Ion cells: 16-bit delta-sigma ADC, iso UART communication, functional safety up to ASIL D. For EVs, light electric vehicles, forklifts and energy storage.

TLE9009DQU
Li-Ion battery monitoring and balancing IC. TLE9009DQU is a 9-cell battery monitoring IC with 16-bit ADC, ASIL D safety, and daisy chain comms for EVs. Find data sheet, parameters and ordering info.
Applications: Automotive battery management systems (BMS), Energy storage systems.
- Balances & monitors up to 9 cells
- Robust 90V/130nm automotive technology
- 16-bit delta-sigma ADC for each cell
- Built-in digital filter (70Hz cut-off)
- Secondary ADC for E2E safety mechanism
- Digital stress compensation
- Infineon CDD compatibility
- PSOC™ HVPA Pack Monitor compatibility
- 5 NTC channels + 4 GPIOs
- UART & capacitive coupled interface
- Daisy chain communication supported
- Ring mode communication supported
- ASIL D BMS safety applications supported
Technical Specifications
| Voltage measurement channels | 9 |
|---|---|
| Temperature measurement channels | 5 |
| Balancing current | max. 200 mA |
| Cell voltage | max. 9 V |
| Voltage class | 90 V |
| Functional range | 4.75 – 60 V |
| Isolated communication interface | iso UART |
| iso UART interfaces | 2 |
| Non-isolated communication interface | UART |
| Communication speed | 2 MBit |
| Standby current | 2.5 µA |
| ESD protection | 4 kV |
| Junction temperature (Tj) | max. 150 °C |
| Classification | ASIL D, ISO 26262-compliant |
| Green | RoHS compliant, Halogen free |
| Planned availability until at least | 2039 |
| Package | PG-TQFP-48 |
| Ordering code (OPN) | TLE9009DQUXUMA1 |
| Product status | Active and preferred |

TLE9012DQU
Li-Ion battery monitoring and balancing IC. TLE9012DQU is a 12-cell battery monitor IC with 16-bit ADC, 200 mA balancing, ASIL-D compliance for EVs/ESS. Find data sheets and ordering info.
Applications: Automotive battery management system, Automotive battery management system (BMS) - high-voltage, Light electric vehicle solutions.
- V monitoring of up to 12 battery cells
- Hot plugging support
- 16-bit delta-sigma ADC for each cell
- High-accuracy measurement for SoC
- Integrated sensor digital compensation
- Secondary ADC: End-End Safety Filtering
- temp measurement channels external NTCs
- Internal temperature sensors
- 200 mA Balance Switch
- 2 Mbit/s communication interface
- Four GPIO Pins for External EEPROM
- Internal cycle routine triggerdiagnostic
Technical Specifications
| Voltage measurement channels | 12 |
|---|---|
| Temperature measurement channels | 5 |
| Balancing current | max. 200 mA |
| Cell voltage | max. 9 V |
| Voltage class | 90 V |
| Functional range | 4.75 – 60 V |
| Isolated communication interface | iso UART |
| iso UART interfaces | 2 |
| Non-isolated communication interface | UART |
| Communication speed | 2 MBit |
| Standby current | 2.5 µA |
| ESD protection | 4 kV |
| Junction temperature (Tj) | max. 150 °C |
| Classification | ASIL D, ISO 26262-compliant |
| Green | RoHS compliant, Halogen free |
| Planned availability until at least | 2039 |
| Package | PG-TQFP-48 |
| Ordering code (OPN) | TLE9012DQUXUMA1 |
| Product status | Active and preferred |

TLE9015DQU
iso UART Transceiver IC. TLE9015DQU is a battery monitoring IC with 2 UARTs, iso UARTs, 2 Mbit/s rate, and ring mode for robust Li-Ion BMS. Find data sheet, parameters and ordering.
Applications: Automotive battery management system, Automotive battery management system (BMS) - high-voltage.
- Compatibility for ring mode topology
- 2 UARTs for host microcontroller
- Two iso UART for BMS communication
- 2 Mbit/s fast data rate
- UART to iso UART transparency
- Internal logic for UART pin count
- High robustness against external noise
- Two ext. fault inputs (EMM, ERRQ_ext)
- Latching error pin for ext. MCU
- Internal supply monitoring
- Green Product (RoHS compliant)
Technical Specifications
| Voltage class | 90 V |
|---|---|
| Functional range | 4.75 – 60 V |
| Isolated communication interface | iso UART |
| iso UART interfaces | 2 |
| Non-isolated communication interface | UART |
| Communication speed | 3 MBit |
| Standby current | 2.5 µA |
| ESD protection | 4 kV |
| Junction temperature (Tj) | max. 150 °C |
| Classification | NA |
| Green | RoHS compliant, Halogen free |
| Planned availability until at least | 2039 |
| Package | PG-TQFP-48 |
| Ordering code (OPN) | TLE9015DQUXUMA1 |
| Product status | Active and preferred |

TLE9016DQK
Li-Ion battery monitoring and balancing IC. TLE9016DQK is an Automotive Li-Ion battery monitoring and balancing IC, 16 voltage channels, 6 V–90 V, ASIL D. Find data sheet, parameters and ordering info.
Applications: Automotive battery management systems (BMS), Energy storage systems.
- Monitors up to 16 ch in series
- 16 bit delta-sigma ADC per cell
- Simultaneous 300 mA/cell balancing
- Low-power balancing mode
- Configurable digital filter
- Secondary ADC for E2E safety
- Strong ESD and hotplug performance
- Iso UART communication interface
- 8 error-compensated NTC channels
- Internal automatic safety cycles
- Compatible with AURIX™ TC36/7/8x CDD
- ISO26262 ASIL D safety compliant
Technical Specifications
| Voltage measurement channels | 16 |
|---|---|
| Temperature measurement channels | 8 |
| Balancing current | max. 300 mA |
| Cell voltage | max. 10 V |
| Voltage class | 120 V |
| Functional range | 6 – 90 V |
| Isolated communication interface | iso UART |
| iso UART interfaces | 2 |
| Non-isolated communication interface | UART |
| Communication speed | 3 MBit |
| Standby current | 4 µA |
| ESD protection | 4 kV |
| Junction temperature (Tj) | max. 150 °C |
| Classification | ASIL D, ISO 26262-compliant |
| Planned availability until at least | 2038 |
| Package | PG-LQFP-64 |
| Ordering code (OPN) | TLE9016DQKXUMA1 |
| Product status | Active and preferred |

TLE9018DQK
Li-Ion battery monitoring and balancing IC. TLE9018DQK is an ISO26262 ASIL D multi-channel IC for 18-cell Li-ion battery monitoring, balancing, and key safety functions. Find data sheet, ordering info.
Applications: Automotive battery management systems (BMS), Energy storage systems.
- Monitors up to 18 ch in series
- 16 bit delta-sigma ADC per cell
- Simultaneous 300 mA/cell balancing
- Low-power balancing mode
- Configurable digital filter
- Secondary ADC for E2E safety
- Strong ESD and hotplug performance
- Iso UART communication interface
- 8 error-compensated NTC channels
- Internal automatic safety cycles
- Compatible with AURIX™ TC36/7/8x CDD
- ISO26262 ASIL D safety compliant
Technical Specifications
| Voltage measurement channels | 18 |
|---|---|
| Temperature measurement channels | 8 |
| Balancing current | max. 300 mA |
| Cell voltage | max. 10 V |
| Voltage class | 120 V |
| Functional range | 6 – 90 V |
| Isolated communication interface | iso UART |
| iso UART interfaces | 2 |
| Non-isolated communication interface | UART |
| Communication speed | 3 MBit |
| Standby current | 4 µA |
| ESD protection | 4 kV |
| Junction temperature (Tj) | max. 150 °C |
| Classification | ASIL D, ISO 26262-compliant |
| Green | RoHS compliant, Halogen free |
| Package | PG-LQFP-64 |
| Ordering code (OPN) | TLE9018DQKXUMA1 |
| Product status | Active and preferred |