Alpha & Omega Semiconductor Inc. AIM702S60C1

Overview

AIM702S60C1 from Alpha & Omega Semiconductor is a 600V, 3-phase intelligent power module (IPM) integrating six αMOS5™ MOSFETs, high-voltage IC drivers, bootstrap diodes with current-limiting resistors, and protection circuitry. It delivers R_DS(on) ≤ 4.2Ω, supports 3–18V logic interface, and provides UVLO, OT, and OCP with controllable VCF fault output. It targets low-power AC motor drives up to 240Vrms.

For engineers reviewing the AIM702S60C1 datasheet, pinout, applications, or equivalent options, key selection criteria include its integrated HVIC driver architecture, 1500V_rms/min isolation rating, 1.5A continuous drain current per phase at T_C = 25°C, and configurable fault pulse width via external capacitor on VCF.

Technical Context

The AIM702S60C1 implements a fully integrated 3-phase inverter stage with independent high-side and low-side gate drivers powered by dedicated VB(U/V/W) bias rails and shared VCC. Its protection system uses analog sensing for over-current (via external shunt + RC filter), digital-level under-voltage detection on both VCC (11.4V trip) and VBS (10.0V trip), and thermal monitoring of the LVIC die (130°C typical trip).

Control interface employs Schmitt-trigger inputs with 2.5V turn-on and 0.8V turn-off thresholds, enabling noise-immune PWM operation up to 16kHz. Fault signaling is centralized through the VCF pin, which can be configured for fixed 20µs pulses or adjustable width using an external capacitor (e.g., 1nF → ~500µs), and directly disables all low-side MOSFETs when pulled low.

Key Specifications

Pinout & Package

AIM702S60C1 is housed in the IPM-7 surface-mount package (18 × 7.5 × 2.5 mm), featuring isolated power and control sections with creepage/clearance optimized for 600V systems.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FSB50450 and IRSM836-048, the AIM702S60C1 uniquely balances 600V capability, integrated bootstrap diodes, and VCF pulse-width configurability in a compact 18mm footprint-making it optimal for cost-sensitive, space-constrained 100–240Vrms appliance inverters where BOM reduction and layout simplicity are critical.

Availability

AIM702S60C1 is available at Aetrix Electronics and suitable for fan motor inverters, small-appliance pump drives, and smart home ventilation modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant green packaging.

Supply support for AIM702S60C1 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

Alpha & Omega Semiconductor (AOS) is a fabless power semiconductor company specializing in high-performance MOSFETs, IGBTs, and intelligent power modules for consumer, industrial, and computing applications.

The AIM702S60C1 belongs to AOS's αMOS5™-based IPM family, engineered specifically for compact, high-efficiency AC-input motor drives in white goods and HVAC equipment where integration, reliability, and thermal performance are prioritized.

FAQ

What is the maximum recommended DC-link voltage for AIM702S60C1?

The AIM702S60C1 datasheet specifies a recommended maximum bus supply voltage (V_PN) of 450V applied between P and N terminals. While its MOSFETs are rated for 600V breakdown, sustained operation above 450V increases risk of avalanche stress and reduces long-term reliability. For 240Vrms AC input systems, typical rectified peak voltage is ~340V, leaving adequate margin for transients. Always observe the 450V limit in design calculations and layout.

How does the VCF pin function during over-current events in AIM702S60C1?

During over-current detection, the AIM702S60C1 asserts VCF low for a minimum duration of 20µs. If an external capacitor (e.g., 1nF) is connected between VCF and COM, the pulse width extends per t_FO = −(1MΩ × C_CF) × ln(1 − V_CF+/5V) + 100ns + 20µs. The VCF signal simultaneously disables all low-side MOSFETs, halting motor current flow until the fault clears and the input control signals are reasserted after reset.

Can AIM702S60C1 operate with a 3.3V microcontroller interface?

Yes, the AIM702S60C1 accepts 3–18V logic inputs due to its Schmitt-trigger receiver circuit. With a 3.3V MCU, the input high level (≥2.5V) exceeds the 2.5V turn-on threshold, and the 0.8V turn-off threshold ensures clean low-state recognition. No level-shifting is required, but layout best practices-short traces, local 100Ω/1nF RC filters near input pins-are essential to maintain noise immunity in motor drive environments.

What thermal management is required for AIM702S60C1 at full 1.5A load?

At 1.5A continuous per phase and 4.2Ω R_DS(on), the AIM702S60C1 dissipates up to ~9.45W total. With R_th(j-c) = 12.5°C/W, junction-to-case rise is ~118°C. Assuming 25°C ambient and 10°C/W board-to-ambient path, case temperature reaches ~113°C-within the −40°C to 150°C operating range. A minimal copper pour (≥250mm²) with thermal vias to inner layers is sufficient; forced air or heatsink is unnecessary for intermittent duty.

Does AIM702S60C1 include built-in current sensing?

No, the AIM702S60C1 does not integrate current-sensing elements. Over-current protection relies on an external shunt resistor placed in the N (negative DC-link) path, with voltage sensed and filtered (R1/C4 per datasheet Figure 9) before feeding into the internal OCP comparator. This architecture gives designers full control over sensitivity and noise rejection but requires careful PCB layout to avoid ground bounce affecting the sense node.