Part Number: TLE7189F

Manufacturer: Infineon Technologies

Description: 3-Phase Bridge Driver IC

Shipped from: Shenzhen/HK Warehouse

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The automobile industry uses the TLE7189F driver IC to manage the 6 to 12 external MOSFETs that make up the converter for high-current, three-phase motor drives. It combines standard automotive-specific criteria, such as full functionality even at low battery voltages, with features like diagnosis, short circuit detection, and high output performance. With around 150ns of rise and fall time, its three high-side and three low-side output stages can drive MOSFETs with 400nC gate charges.

TLE7189F Features

  • Compatible with N-channel MOSFETs with very low ohmic normal level input.
  • 30 kHz PWM frequency maximum.
  • Down to a supply voltage of 5.5V, it meets specifications.
  • Protection from short circuits with a programmable detection threshold.
  • It has integrated current sense amplifiers with three.
  • From 0% to 100% duty cycle.
  • Low emission and sensitivity to EMC.
  • TTL-style inputs for controlling devices.
  • Distinct inputs for every MOSFET.
  • source connections that are unique for every MOSFET
  • Minimum integrated dead time
  • Shoot through barriers.
  • Disable the sleep mode and functions.
  • Precise diagnosis
  • Warning regarding overheating.
  • VQFN-48 package for optimum cooling with exposed pad.
  • Sustainable Goods (RoHS compliant).
  • Automotive Electronics Council (AEC) certification.

Description and Electrical Characteristics


Output Stages

The TLE7189F has 6 floating blocks, each with a source pin, and 3 powerful push-pull output stages on the low and 3 on the high sides. As a result, the output stage can be connected directly to the source of each MOSFET, enabling precise control of each gate-source voltage even when the bridge is operated at 200A with rise and fall periods that are clearly under 1 s.

Due to the charge pumping mechanism, all 6 output stages have the same output power and can all be switched at up to 30kHz. Its output stages are strong enough to operate 12 200nC MOSFETs or MOSFETs with a gate charge of 400nC apiece while maintaining fall and rise periods of about 150ns. The maximum permitted power dissipation, the maximum junction temperature, and the capabilities of the charge pump constrain the usage of higher frequencies. There is a short circuit detecting block for each output stage.

Operation at Vs<12V – Integrated Charge Pumps

The TLE7189F offers a feature made specifically for the needs of 12V automotive applications. Often, even at 9V or lower supply voltage, an application’s functionality must be guaranteed. Bridge driver ICs typically give less than 9V to the gate of the external MOSFETs in these circumstances, increasing their RDSon and the resulting power dissipation.

For external capacitors, the TLE7189F offers two charge pump circuitries. The pulse pattern of the MOSFETs has no bearing on how the charge pumps work. The charge pumps’ output is controlled. As long as the supplied voltage is less than 8V, the first charge pump doubles it. Charge Pump 1 normally limits its output to 15V at supply voltages of 8V and above. The output voltage of charge pump 1 will rise linearly above the 15V supply voltage. However, the output won’t go above 25V.

The voltage on Vs. is pumped by charge pump 2, which is also controlled. VDH and Vs. Typically lie within the same voltage band. Significant voltage differences between VDH and Vs. are not intended for the driver. As a result, the high-side output stages’ supply voltages would be reduced. To guarantee 10V at the MOSFETs’ gate even when the supply voltage is below 10V, charge pump 1 supplies the low-side MOSFETs and output stages for the low-side MOSFETs with enough voltage.

Charge pump 2 provides the high-side MOSFET output stages with enough voltage to ensure 10V at the MOSFETs’ gate. Additionally, the driver IC’s charge pump 2 and most of its internal circuitry are powered by charge pump 1. The buffer capacitor CB1, connected to GND, serves as charge pump 1’s output.

To guarantee 10V at the high side MOSFET gate, charge pump 2 supplies the high side MOSFETs and their output stages with enough voltage. Charge pump 2’s output, the buffer capacitor CB2, is connected to VDH. With this idea, all external MOSFETs can be driven in the full 0 to 100% duty cycle range without worrying about any bootstrap capacitors needing to be recharged.

This makes use easier across the board, particularly in motor drives with block-wise commutation. The charge pumps stop operating when the gadget is put into sleep mode through INH. The charge pump capacitors, called CPx, and buffer capacitors CBx, can range in size from 1F to 4.7F. Higher charge pump voltages are achieved with higher capacitor values at the expense of reduced voltage ripple on the charge pump buffer capacitors CBx. The buffer capacitors’ ESR, in addition to their capacitance values, controls the voltage ripple. Utilizing buffer capacitors CBx with low ESR is advised.

Sleep Mode

The driver will be put into sleep mode when the INH pin is low. The device’s entire supply structure is turned off by the INH pin, which eventually causes the entire driver to go down due to an Undervoltage. You can turn on the supply system by connecting the INH pin to the gadget. During wake-up, the gadget will go through a power-on reset. To eliminate potential ERR signals, it is advised to do a Reset by ENA after Waking up. To perform a reset, keep the ENA pin low until the charge pump voltages have scaled up. With the INH pin, enabling and disabling takes some time. It is advised to use the ENA pin for quick enable and disable.

When the TLE7189F is in INH mode (INH is low) or when the supply voltage is not available on the Vs. Pin, the driver IC is absent, the charge pumps are inactive, and the charge pump capacitors discharge. Pin CB2 will ultimately sag to GND (the positive terminal of buffer capacitor 2).

The buffer capacitor 2 will gradually charge to battery voltage while the battery voltage is still provided to VDH (the – terminal of the buffer capacitor 2). However, the polarity of buffer capacitor 2 is inverted from that of normal operation. Use a buffer capacitor 2 (CB2) that can handle both +25 V in operation mode and -VBAT in INH mode, such as a ceramic capacitor. The negative voltage across CB2 will be capped at -31 V in INH mode when there is a load dump (CB2 referenced to VDH).


The device is offered as a green product to satisfy the demands of global consumers for ecologically friendly items and to be in compliance with legal standards. Regarding lead-free soldering and lead-free finishes on leads, green goods adhere to IPC/JEDEC J-STD-020.

Contact us at ICRFQ, the top distributor of electronic components in China, if you have any questions or want to order TLE7189F. We’ll make sure you get the best deal possible.

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