Higher integration intelligent power modules up to 100W
With a current rating of 1A or 2A, these IPMs target applications up to 100W, such as refrigerator compressors, washing-machine or dishwasher motors, draining and recirculation pumps, fans, and other drives running at less than 20 kHz in hard-switching circuitries. Operation up to 150°C allows use in harsh environments.
The modules integrate a three-phase MOSFET bridge and gate-driver with added features including an unassigned op-amp and comparator for functions such as over-current protection and current sensing. Additional built-in safety features include interlocking to prevent shoot-through currents from damaging MOSFETs of the bridge, a fault-status output, shutdown input, and smart-shutdown capability. An optional built-in thermistor helps simplify over-temperature protection.
In addition to the zig-zag lead option, the new series is also available in a line-lead package. These give designers extra flexibility to simplify the board layout and minimize controller size in mechatronic assemblies and other space-constrained applications.
The high thermal performance of the packages, combined with the efficiency of ST’s 500V MOSFETs, increases designers’ freedom to minimize heatsink size or create heatsink-free solutions for lower-power applications. The low MOSFET on-resistance of 3.6Ω and 1.7Ω, in 2A and 1A variants, respectively, combines with low switching losses to ensure high overall energy efficiency. The MOSFETs have separate open-emitter connections to module pins, which simplifies use of three-shunt current sensing for field-oriented motor control (FOC) or single-shunt sensing for trapezoidal control. The modules also integrate the bootstrap diodes needed to control the high-side MOSFET gates, further minimizing demand for external components.
The STIPN1M50T-H, STIPN1M50-H, STIPN2M50T-H (L), and STIPN2M50-H are priced from $4.50 in the dual inline package (1000).
ST; www.st.com/ipm and www.st.com/mosfetsllimm_nb
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