Infineon MOTIX™ multi half-bridge ICs - TLE94112ES

The TLE94112ES is a protected twelve-fold half-bridge driver designed especially for automotive motion control applications such as Heating, Ventilation and Air Conditioning (HVAC) flap DC motor control. It is part of a larger family offering half-bridge drivers from three outputs to twelve outputs with 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. It offers diagnosis features such as short circuit, open load, power supply failure and overtemperature detection. In combination with its low quiescent current, this device is attractive among others for automotive applications. The small fine pitch exposed pad package, PG-TSDSO-24, provides good thermal performance and reduces PCB-board space and costs.

Parametrics

• Classification: QM
• Control Interface: 16-bits SPI
• Family: MOTIX™ multi half-bridge ICs
• Over current detection min: 0.9 A
• Planned to be available until at least: 2037
• Qualification: Automotive
• RDSON_H(typ): 850 mΩ
• RDSON_L(typ): 850 mΩ
• Supply Voltage absolute max ratings: 40 V
• Supply Voltage range: 5.5 V to 20 V
• Temperature range: -40 °C to 150 °C

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

Benefits

• No external MOSFETs needed
• Low power consumption in sleep mode
• Reduce system cost, small PCB footprint
• Driving schemes for up to 11 motors
• Advance diagnosis features
• OUT 1 & 2 optimized for driving HS loads
• Fast diagnosis with global error flag