Infineon Technologies IRAMS06UP60B

Overview

IRAMS06UP60B from Infineon Technologies (formerly International Rectifier) is a fully isolated 3-phase inverter IPM integrating six 600V IGBTs, gate drivers, bootstrap diodes, internal shunt resistor (50 mΩ), NTC thermistor, and protection circuitry for appliance motor drives. It delivers 6 A RMS phase current at 25°C, supports 0.1–0.5 kW motor power range on 85–253 V_AC, and features overcurrent shutdown, undervoltage lockout, and matched propagation delay for precise VF compressor control in refrigerators and freezer systems.

For engineers reviewing the IRAMS06UP60B datasheet, IRAMS06UP60B pinout, IRAMS06UP60B application, or IRAMS06UP60B equivalent, key selection criteria include its integrated current-sense shunt (50 mΩ), 2000 V_RMS/1 min isolation rating, 600 V blocking voltage, -40°C to +150°C junction temperature range, and built-in thermal monitoring via NTC (R₂₅ = 100 kΩ ±3%).

Technical Context

The IRAMS06UP60B implements a 3-phase bridge topology with low-V_CE(on) non-punch-through IGBTs and Schmitt-triggered logic inputs. Its driver IC provides matched turn-on (470 ns) and turn-off (615 ns) propagation delays across all six channels, plus 290 ns programmable dead time to prevent cross-conduction.

Protection functions are hardware-based: overcurrent detection triggers within ≤750 ns of I_TRIP threshold violation (8.5–10.5 A), followed by automatic fault clear after 9 ms; undervoltage lockout activates at 10.4–11.4 V on V_CC/V_BS with 0.2 V hysteresis; and thermal monitoring uses an internal NTC with B-constant 4250 K (25–50°C).

Key Specifications

Pinout & Package

The IRAMS06UP60B is housed in a 24-pin DIP-style fully isolated package (PD-95832 Rev C) with creepage/clearance optimized for 230 V AC mains-connected appliances. The module includes dedicated high-side floating supply pins (VB1–VB3), output terminals (U/VS1, V/VS2, W/VS3), and logic-level inputs referenced to VSS.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 3-phase inverter IPM applications.

Compared with FST1000A60 and FSBB15CH60, the IRAMS06UP60B uniquely combines 50 mΩ internal shunt, 2000 V_RMS isolation, and integrated NTC in a 6 A-rated package-making it optimal for cost-sensitive, safety-certified refrigerator and freezer designs where board area and thermal accuracy are constrained.

Availability

IRAMS06UP60B is available at Aetrix Electronics and suitable for refrigerator compressor drives, freezer fan controls, heat pump air handlers, and washing machine drum motor systems requiring stable component supply, full regulatory compliance, and long-lifecycle availability.

Supply support for IRAMS06UP60B 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 global semiconductor leader specializing in power management, sensor, and automotive ICs, with deep expertise in high-voltage power modules and motor control solutions.

The IRAMS series was developed specifically for cost-optimized, safety-certified appliance motor drives-emphasizing integration density, thermal reliability, and simplified compliance with IEC 60730 Class B requirements.

FAQ

What is the maximum allowable DC bus voltage for IRAMS06UP60B?

The absolute maximum V₊ (positive bus input) is 450 V DC per datasheet Absolute Maximum Ratings. Operation above this voltage risks permanent damage to IGBTs and internal drivers. For 230 V AC input rectified to ~325 V DC peak, the 450 V rating provides 38% margin against line surges and switching transients typical in appliance environments.

How does the internal shunt resistor connect to the ITRIP pin?

The 50 mΩ shunt is placed between the V- terminal and the emitter of each low-side IGBT. Its differential voltage is internally routed to the ITRIP pin, which compares it against a 0.49 V threshold. No external amplification is needed-the pin accepts up to 3.3 V input, corresponding to 66 A through the shunt, but overcurrent triggers at 8.5–10.5 A (0.425–0.525 V).

Can IRAMS06UP60B be used without the internal NTC thermistor?

Yes-the VTH pin may be left unconnected or tied to a fixed voltage if thermal monitoring is handled externally. However, disabling the internal NTC forfeits the built-in overtemperature shutdown feature (activated at ~150°C junction), requiring the system MCU to implement alternative thermal protection using external sensors or current-based estimation.

What is the recommended heatsink mounting torque for IRAMS06UP60B?

The datasheet specifies a mounting torque of 0.8–1.0 N·m for M3 screws securing the module to the heatsink. Exceeding 1.0 N·m risks cracking the ceramic substrate or deforming the metal baseplate, compromising thermal performance and isolation integrity. Use a calibrated torque screwdriver and apply heatsink compound with 1 W/m·K conductivity on a flat, greased surface.