STMicroelectronics STIPNS1M50T-H

Overview

STIPNS1M50T-H from STMicroelectronics is a SLLIMM-nano intelligent power module (IPM) integrating a 3-phase MOSFET inverter bridge (1 A, 500 V, R_DS(on) ≤ 3.6 Ω), three half-bridge HVIC gate drivers, op-amp, comparator, NTC thermistor, and bootstrap diodes - designed for compact AC motor drives in space-constrained appliances. It delivers low EMI via optimized switching speed and supports 3.3 V/5 V/15 V CMOS/TTL logic inputs with hysteresis.

For engineers reviewing the STIPNS1M50T-H datasheet, STIPNS1M50T-H pinout, STIPNS1M50T-H application, or STIPNS1M50T-H equivalent, this IPM enables rapid implementation of fault-protected, thermally efficient 3-phase inverters for small-power BLDC/PMSM motors without external level shifters or optocouplers.

Technical Context

This IPM embeds six discrete MOSFETs and three high-voltage ICs (HVICs) in a single NSDIP-26L package, each HVIC providing independent high-side and low-side gate driving with interlocking, dead-time control (180 ns), and undervoltage lockout (UVLO) for V_CC and V_BOOT. The integrated op-amp (gain bandwidth product: 8–12 MHz, slew rate: 2.5–3.8 V/µs) and comparator (V_REF = 0.54 V typical, propagation delay < 250 ns) enable real-time current sensing and fast overcurrent shutdown.

The T/SD/OD pin serves triple function: NTC thermistor terminal (UL 1434 CA2/CA4 compliant), active-low shutdown input, and open-drain fault output. Internal pull-down resistors (375 kΩ) on all HIN/LIN inputs ensure defined logic states, while built-in bootstrap diodes eliminate need for external diodes in high-side supply paths.

Key Specifications

Pinout & Package

STIPNS1M50T-H uses the NSDIP-26L surface-mount package (29.2 mm × 12.5 mm × 3.2 mm), optimized for thermal performance and board-level EMI reduction. The package features isolated power and signal sections, with dedicated high-current terminals (P, NU, NV, NW) and low-noise control pins arranged to minimize coupling.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FBS50550 and FSB50750, STIPNS1M50T-H trades peak current capability for integrated analog intelligence (op-amp, comparator, NTC), enabling smaller, safer, and more feature-rich motor control in sub-100 W consumer appliances - ideal when board space, certification burden, and analog signal chain simplicity are decisive.

Availability

STIPNS1M50T-H is available at Aetrix Electronics and suitable for refrigerator fan control, air-conditioning blower drives, and dishwasher drain pump applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for white-goods OEMs.

Supply support for STIPNS1M50T-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, specializing in power management, microcontrollers, and intelligent power modules for industrial and consumer applications.

STIPNS1M50T-H belongs to the SLLIMM-nano family - engineered specifically for compact, high-efficiency 3-phase motor drives in space-constrained, safety-critical appliances such as refrigerators, HVAC units, and kitchen appliances.

FAQ

What is the maximum allowable DC bus voltage for STIPNS1M50T-H?

The absolute maximum drain-source voltage (V_DSS) is 500 V per MOSFET. Recommended operating supply voltage (V_PN) is 300–400 V, ensuring sufficient margin against voltage spikes and ripple. Operation above 400 V risks exceeding safe operating area limits and triggering UVLO or thermal shutdown.

Can the integrated op-amp be used for motor phase current sensing?

Yes - the op-amp (input offset voltage: 6 mV max, GBWP: 8–12 MHz) is uncommitted and fully usable for amplifying shunt resistor voltage. Its rail-to-rail output (0.075–14.7 V) and low input bias current (100–200 nA) support accurate bidirectional current measurement across the full 1 A range without external gain stages.

How does the T/SD/OD pin function during overtemperature events?

When the internal NTC detects temperature exceeding ~120 °C, the T/SD/OD pin voltage drops below the logic low threshold (≤0.8 V), asserting active-low shutdown. This disables all U-phase outputs immediately and propagates shutdown to V/W phases within 200 ns via RC-coupled interlock, halting motor operation before thermal damage occurs.

Is external bootstrap diode required for high-side gate drive?

No - STIPNS1M50T-H integrates internal bootstrap diodes for each phase (U/V/W), eliminating the need for external diodes. This reduces component count, PCB area, and potential failure points while maintaining reliable high-side gate charging across the full 13–18 V V_BOOT operating range.