Infineon Technologies TLE94112EL Twelve-Fold Half-Bridge Drivers
Infineon TLE94112EL Twelve-Fold Half-Bridge Drivers are designed for automotive motion control applications like Heating, Ventilation, and Air Conditioning (HVAC) flap DC motor control. The drivers feature 12 half-bridge power outputs and a 16-bit standard SPI interface. The TLE94112EL is part of a larger half-bridge driver family offering from three outputs to twelve outputs with a direct interface or SPI interface.
The half-bridge drivers are designed to drive DC motor loads in sequential or parallel operation. Operation modes forward (cw), reverse (ccw), brake and high impedance are controlled from a 16-bit SPI interface. The devices offer diagnosis features like short circuit, open load, power supply failure, and over-temperature detection. This device is attractive for automotive applications with its low quiescent current. The small fine pitch exposed pad package, PG-SSOP-24, provides good thermal performance and reduces PCB-board space and costs.
Features
- Twelve half bridge power outputs
- Very low power consumption in sleep mode
- 3.3V / 5V compatible inputs with hysteresis
- All outputs with overload and short circuit protection
- Independently diagnosable outputs (overcurrent, open load)
- Open load diagnostics in ON-state for all high-side and low-side
- Outputs with selectable open load thresholds (HS1, HS2)
- 16-bit Standard SPI interface with daisy chain and in-frame response capability for control and diagnosis
- Fast diagnosis with the global error flag
- PWM capable outputs for frequencies 80Hz, 100Hz and 200Hz with 8-bit duty cycle resolution
- Overtemperature pre-warning and protection
- Over- and Undervoltage lockout
- Cross-current protection
Applications
- HVAC Flap DC motors
- Monostable and bistable Relays
- Side mirror x-y adjustment and mirror fold
- LEDs
Block Diagram
Published: 2018-03-13
| Updated: 2022-07-25