Infineon Technologies IM111X3Q1BAUMA1

Overview

IM111X3Q1BAUMA1 from Infineon is a dual-channel H-bridge integrated power module (IPM) for single-phase motor drives, integrating two 250V OptiMOS™ MOSFET half-bridges with gate drivers, bootstrap circuitry, overcurrent protection, and 1500V_RMS isolation in a 12×10mm QFN package. It delivers 80–200W motor power with 0.063Ω R_DS(on), shoot-through prevention, and 3.3V logic compatibility.

For engineers reviewing the IM111X3Q1BAUMA1 datasheet, IM111X3Q1BAUMA1 pinout, IM111X3Q1BAUMA1 application, or IM111X3Q1BAUMA1 equivalent, key selection criteria include its dual-channel H-bridge topology, 250V blocking voltage, 12A DC output current, integrated fault reporting via RFE pins, and thermistor (NTC) support for thermal monitoring in compact appliance inverters.

Technical Context

This IPM implements two independent high-voltage half-bridge driver ICs (HVICs), each driving an OptiMOS™ MOSFET pair with matched propagation delay (<100ns typical) and integrated dead-time insertion (~300ns). The control logic accepts 3.3V/5V-compatible active-high HIN/LIN signals with internal Schmitt-trigger inputs and noise filtering (t_FILIN ≈ 100ns).

Each channel features independent under-voltage lockout (V_DDUV+ = 8.9V, V_BSUV+ = 8.9V), overcurrent detection via analog ITRIP inputs, and open-drain fault reporting on RFE pins. The module supports isolated current sensing via VR pins and temperature monitoring via a dedicated NTC terminal.

Key Specifications

Pinout & Package

The IM111X3Q1BAUMA1 is housed in a 39-pin QFN package (12×10mm, 0.5mm pitch) with exposed thermal pad for bottom-side heat dissipation and reinforced creepage/clearance for 1500V_RMS isolation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar H-bridge IPM applications.

Compared with IRSM808-205MH and FAN9612, IM111X3Q1BAUMA1 uniquely combines dual-channel symmetry, 1500V isolation, NTC interface, and 0.063Ω R_DS(on) in a 12×10mm footprint-enabling faster time-to-market for compact, thermally robust appliance inverters.

Availability

IM111X3Q1BAUMA1 is available at Aetrix Electronics and suitable for linear refrigerator compressors, high-efficiency fan drives, and DC-AC inverters requiring stable component supply, long-lifecycle assurance, and JEDEC-qualified industrial reliability.

Supply support for IM111X3Q1BAUMA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor leader specializing in power management, automotive MCUs, and industrial control ICs, with global manufacturing and qualification infrastructure.

The CIPOS™ Nano product line delivers highly integrated, surface-mount power modules targeting space-constrained, high-reliability motor drives in white goods and industrial equipment.

FAQ

What is the maximum continuous DC bus voltage supported by IM111X3Q1BAUMA1?

The IM111X3Q1BAUMA1 is rated for a maximum DC bus voltage of 200V, with a 250V MOSFET blocking voltage providing 50V transient margin. Operation above 200V violates recommended operating conditions and risks premature failure due to avalanche stress on the integrated OptiMOS™ devices.

How does the RFE pin function during fault conditions?

During overcurrent, UVLO, or thermal fault, RFE asserts low (open-drain) to signal fault status and latch the driver outputs off. An external RC network on RFE sets the automatic fault clear timeout; pulling RFE high externally forces immediate reset. No internal pull-up is present-external 10kΩ pull-up to VDD is required for proper operation.

Can IM111X3Q1BAUMA1 drive a BLDC motor in six-step commutation?

Yes-the dual H-bridge topology supports three-phase BLDC drive when paired with an external third half-bridge or by configuring one channel as a high-side switch and the other as a low-side switch per phase leg. However, native three-phase gate timing requires external logic or MCU coordination; no integrated commutation sequencer is included.

What is the purpose of the VR pins, and how should they be routed?

VR1 and VR2 provide Kelvin-sense connections to the low-side MOSFET sources for accurate current measurement. They must be routed as short, direct traces to the shunt resistor's low-side terminal-separate from power COM paths-to avoid inductive voltage drop errors. Routing length should be ≤5mm with minimum 0.3mm trace width for optimal accuracy.