STMicroelectronics STIPN2M50-H

Overview

STIPN2M50-H from STMicroelectronics is a SLLIMM-nano intelligent power module (IPM) integrating six 500 V, 2 A MOSFETs and three half-bridge high-voltage ICs (HVICs) for gate driving in a single NDIP-26L package. It delivers a complete 3-phase inverter bridge with built-in op-amp, comparator, undervoltage lockout, interlocking logic, and ±2 kV HBM ESD protection - optimized for low-EMI motor control in compact appliances.

For engineers reviewing the STIPN2M50-H datasheet, STIPN2M50-H pinout, STIPN2M50-H application, or STIPN2M50-H equivalent, this IPM enables rapid implementation of space-constrained, thermally efficient AC motor drives without external gate drivers, bootstrap diodes, or discrete protection circuitry.

Technical Context

The STIPN2M50-H implements a fully integrated 3-phase inverter topology with independent U/V/W half-bridge HVICs, each featuring bootstrap-fed high-side drivers, active pull-down on low-side inputs, and internal 375 kΩ input pull-down resistors. Its shutdown function combines an open-drain SD/OD pin with a dedicated CIN comparator tied to an internal 0.54 V reference for fast overcurrent detection.

Control logic follows a strict truth table with interlocking dead time (180 ns typ.) and tri-state capability per phase. The embedded op-amp (8–12 MHz GBWP, 2.5–3.8 V/µs slew rate) supports uncommitted current sensing, while the comparator provides <130 ns propagation delay from fault trigger to driver disable - critical for protecting compressor and fan inverters against shoot-through and thermal runaway.

Key Specifications

Pinout & Package

NDIP-26L is a 26-pin, dual-in-line plastic package with internal heatsink tab (exposed metal pad), optimized for surface-mount assembly and thermal transfer to PCB copper planes. Pin 1 is marked by notch; pins 16–26 are on the right side, pins 1–15 on the left, with pin 17–26 forming the high-voltage output and bootstrap group.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FSTB12A50 and FSB50550, STIPN2M50-H uniquely integrates analog signal conditioning and hardware-level fault response in a compact NDIP-26L form factor - making it optimal for space-constrained, safety-critical, low-power (<200 W) appliance inverters where BOM reduction and design cycle time are primary drivers.

Availability

STIPN2M50-H is available at Aetrix Electronics and suitable for refrigerator compressors, air-conditioning fans, dishwasher drain pumps, and HVAC recirculation pumps requiring stable component supply, long-term lifecycle support, and traceable sourcing for consumer appliance OEMs.

Supply support for STIPN2M50-H 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing silicon solutions for automotive, industrial, and consumer markets since 1987.

The STIPN2M50-H belongs to the SLLIMM-nano intelligent power module family, engineered specifically for compact, high-efficiency 3-phase AC motor drives in white goods - emphasizing integration, thermal robustness, and safety-compliant protection.

FAQ

What is the maximum recommended PWM frequency for STIPN2M50-H?

The datasheet specifies 25 kHz as the recommended maximum PWM frequency under TC ≤ 100 °C. This limit balances switching losses (E_on = 61 µJ, E_off = 4 µJ) against thermal rise in the NDIP-26L package. Operating above 25 kHz requires derating output current or enhancing heatsinking to maintain TJ ≤ 150 °C.

Can the op-amp in STIPN2M50-H be used for voltage sensing instead of current sensing?

Yes - the op-amp is uncommitted and supports rail-to-rail input (–0.3 V to VCC + 0.3 V) and output (75 mV to 14.7 V). It can amplify DC bus voltage or phase voltage signals, provided common-mode range and output swing align with downstream ADC or comparator thresholds. Gain stability is ensured up to 12 MHz GBWP.

How does the interlocking function prevent shoot-through in STIPN2M50-H?

The interlocking logic enforces a minimum 180 ns dead time between high-side and low-side driver turn-on commands per phase. When HIN and LIN are both high, the internal state machine forces both outputs low - eliminating cross-conduction regardless of MCU timing jitter or propagation delay mismatches in external gate drivers.

Is external bootstrap capacitor selection critical for STIPN2M50-H reliability?

Yes - each VBOOT pin requires a dedicated 0.22 µF ceramic capacitor (X7R, 50 V) placed ≤2 mm from the pin, plus a parallel 100–220 nF decoupling cap. Insufficient capacitance causes VBOOT droop during high-duty-cycle operation, leading to high-side driver undervoltage lockout and asymmetric phase output - verified in AN4966 test reports.