Infineon Technologies IRAMY20UP60B

Overview

IRAMY20UP60B from Infineon Technologies (formerly International Rectifier) is a 20A, 600V integrated power hybrid IC combining three low V_CE(on) non-punch-through IGBTs, six-channel high-voltage gate drivers, internal shunt resistor (17.0 mΩ), NTC thermistor, and protection circuitry in a fully isolated SiP3 package. It serves as a complete 3-phase inverter stage for AC motor drives in air conditioning compressors and light industrial systems operating at 85–253 V_AC, delivering fail-safe operation via overcurrent shutdown, under-voltage lockout, and temperature monitoring.

For engineers reviewing the IRAMY20UP60B datasheet, IRAMY20UP60B pinout, IRAMY20UP60B application, or IRAMY20UP60B equivalent, key selection criteria include its 2000 V_RMS isolation rating, matched 590/700 ns propagation delays, 22 Ω bootstrap resistor, ±5% shunt tolerance, and UL E252584 certification - all critical for reliable appliance motor control design.

Technical Context

This hybrid IC integrates IGBTs with driver logic on a single thermally enhanced substrate, using isolated high-side floating supplies (VB1–VB3) referenced to respective VSx pins to enable direct half-bridge driving without external level shifters. Its internal current sensing relies on a precision 17.0 mΩ shunt with 0–200 ppm/°C tempco and 4.5 W dissipation capability at T_C ≤ 100°C.

The driver section implements cross-conduction prevention, 5 V Schmitt-triggered inputs, and blanking-timed ITRIP fault response (100–150 ns), while thermal protection uses an integrated NTC (R₂₅ = 100 kΩ, B = 4250 K) connected to the THERMISTOR/TMON pin (Pin 19). All channels share identical UVLO thresholds (10.6–11.6 V) and dead time (220–360 ns).

Key Specifications

Pinout & Package

IRAMY20UP60B uses a thermally enhanced single-in-line package (SiP3) with integrated heatspreader and full transfer-mold isolation. The 22-pin layout provides separate high-side floating supplies (VB1–VB3), phase outputs (U/V/W via VS1–VS3), logic inputs (HIN1–3, LIN1–3), and dedicated protection interfaces (ITRIP, THERMISTOR/TMON).

Key Features

Applications

Equivalent & Alternatives

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

Compared with FSB50450 and IRAMS20UP60A, IRAMY20UP60B delivers superior integration (shunt + NTC + matched timing), tighter protection response (1.75 µs ITRIP-to-shutdown), and UL-certified isolation - making it optimal for new appliance platforms demanding compactness and safety compliance.

Availability

IRAMY20UP60B is available at Aetrix Electronics and suitable for air conditioning compressor drives, refrigeration system motor controls, and light industrial fan/pump inverters requiring stable component supply, long-term lifecycle support, and globally certified safety compliance.

Supply support for IRAMY20UP60B 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, sensor, and automotive ICs, with deep expertise in high-voltage power stages and motor control solutions.

The IRAMY series targets appliance-grade motor drives, combining IGBTs, gate drivers, and protection into single-package solutions optimized for cost-sensitive, safety-critical, and thermally constrained environments like HVAC and white goods.

FAQ

What is the maximum allowable DC bus voltage for IRAMY20UP60B?

The absolute maximum V_CE rating is 600 V, and the recommended operating condition specifies V₊ ≤ 450 V. This 25% derating ensures robust operation against line transients and switching spikes in 230 V_AC systems with PFC stages, aligning with IEC 61000-4-5 surge immunity requirements.

How does the internal shunt resistor enable current sensing without external components?

The 17.0 mΩ shunt is placed in the low-side return path of each phase. Its voltage drop (up to 490 mV at 29 A) is fed directly to the ITRIP pin, where an internal comparator triggers fault shutdown. No external op-amp or isolation amplifier is needed, reducing signal path latency and component count.

Can IRAMY20UP60B drive motors beyond the 0.75–2.2 kW range specified in the datasheet?

The 0.75–2.2 kW range assumes 85–253 V_AC input and sinusoidal PWM at 20 kHz. At reduced switching frequency (e.g., 8 kHz) or forced-air cooling, RMS current can be sustained at 10 A up to 100°C case temperature, supporting ~3 kW in optimized thermal designs - provided I_TRIP threshold and thermal derating are recalculated.

What is the purpose of the NA pins (3, 6, 9, 11) in the 22-pin layout?

Pins 3, 6, 9, and 11 are unconnected (NC) mechanical placeholders in the SiP3 package. They maintain symmetrical leadframe structure for thermal uniformity and mold compound integrity during transfer molding, but carry no electrical function and must remain unconnected in PCB layout.