TDK Corporation (TSE:6762) extends the power capability of its Micronas HVC 5x embedded motor controller family with the new HVC 5481G for automotive applications. The HVC 5481G is a programmable gate driver system-on-chip (SoC) for control of an external power bridge with 6 N-channel FETs to drive actuators, fans, and pumps.* Samples of the HVC 5481G are available now and production will begin in 2026.
The HVC 5481G SoC is compatible to the existing HVC 5x family software, integrating an ARM® Cortex®-M3 CPU with 64 KB flash memory and 8 KB SRAM. It operates directly from the 12 V automotive supply rail and integrates a LIN transceiver for communication. The IC supports various motor control algorithms from sensor-less 6-step commutation using BEMF detection to single shunt FOC. The device includes 7 general-purpose IO pins, internal timers, and capture compare registers, allowing seamless interfacing with the Micronas Hall-effect or TDK TMR sensors.
Available in a compact 5 x 5 mm PQFN32 package and certified according to AEC-Q100 Grade 1 standards for automotive, the HVC 5481G delivers a reliable and efficient solution for medium power BLDC applications. Its robust design and advanced features make it the device of choice for automotive and industrial applications, ensuring high performance and adaptability.
Glossary
- ADC: Analog to digital converter
- BLDC: Brushless DC motor
- FOC: Field oriented control
- CPU: Central processing unit
- AEC-Q100: Qualification standard for automotive applications
- Grade 1: Ambient temperature 125 ºC, junction temperature 150 ºC
- HVC: High voltage microcontrollers
- LIN: Local interconnect network for automotive applications
- QFN: Quad flat no lead package
Main applications*
- Blowers, pumps and fans in automotive applications
- LIN based seat movers
- Smart higher power actuators for doors and lift-gates
Main features and benefits**
- High integration, low BOM cost
| Type | Package | Motor terminals |
Drive current |
Current measurement |
Micro- controller |
Flash memory |
SRAM | EEPROM (emulated) |
NVR (Non-Volatile Register) |
| HVC 5481G | PQFN32 | DC or BLDC (3phase) |
From 3 A to 50 A |
Single shunt | ARM® Cortex®- M3 |
64 KB | 8 KB | 2056 byte | 1028 byte |
** All operating parameters must be validated for each customer application by customers’ technical experts.