Infineon Technologies IPG20N04S409ATMA1

Overview

IPG20N04S409ATMA1 from Infineon Technologies is a dual-channel AEC-Q101-qualified N-channel enhancement-mode MOSFET in PG-TDSON-8-4 package, rated for 40 V V_DS, 20 A continuous drain current per channel at T_C = 25 °C, and 8.6 mΩ max R_DS(on) at V_GS = 10 V. It operates up to 175 °C junction temperature and is fully avalanche tested (E_AS = 145 mJ), targeting automotive powertrain and body control modules.

For engineers reviewing the IPG20N04S409ATMA1 datasheet, IPG20N04S409ATMA1 pinout, IPG20N04S409ATMA1 application, or IPG20N04S409ATMA1 equivalent, key selection criteria include its dual-channel layout, 2.8 K/W R_thJC, integrated reverse diode (V_SD = 0.9–1.3 V), and MSL1 reflow compatibility - all critical for high-reliability 12 V automotive switching designs.

Technical Context

This OptiMOS™-T2 device implements two independent N-channel power transistors sharing a common source connection in an exposed-drain thermally enhanced SMD package. Its gate threshold voltage (2.0–4.0 V) enables robust TTL/CMOS-level drive, while low Q_gd (2.9–6.7 nC) and fast switching (t_r = 3 ns, t_f = 10 ns) support high-frequency DC-DC and motor control topologies.

The integrated body diode exhibits t_rr = 34 ns and Q_rr = 30 nC at I_F = 17 A, enabling efficient synchronous rectification and freewheeling in half-bridge configurations without external diodes. Thermal design leverages R_thJC = 2.8 K/W with direct PCB copper thermal path via the exposed drain pad.

Key Specifications

Pinout & Package

PG-TDSON-8-4 package features an exposed drain pad on the bottom side for thermal conduction and eight surface-mount terminals in a 5 mm × 6 mm footprint. Pin 1–4 and 6–8 are signal leads; Pin 5 is the common source connection shared by both channels.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel automotive N-channel MOSFET applications.

Compared with IPB20N04S409ATMA1, this TDSON variant offers superior thermal performance and smaller footprint; versus IRF7832TRPBF, it delivers automotive-grade reliability, dual-channel integration, and lower R_DS(on), justifying its use in safety-critical vehicle subsystems.

Availability

IPG20N04S409ATMA1 is available at Aetrix Electronics and suitable for automotive body control modules, engine cooling fan drivers, start-stop system load switches, and electric power steering motor phase switches requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for IPG20N04S409ATMA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and security solutions, with global R&D and manufacturing infrastructure.

This part belongs to the OptiMOS™-T2 power transistor family, engineered specifically for high-efficiency, high-reliability 12 V automotive switching applications demanding AEC-Q101 compliance and extended temperature operation.

FAQ

What is the maximum allowable gate-source voltage for IPG20N04S409ATMA1?

The absolute maximum V_GS is ±20 V, with recommended operating range limited to –12 V to +15 V for reliable long-term performance. Exceeding ±20 V risks permanent gate oxide damage, especially during transient events like ESD or inductive kickback. The gate threshold voltage (2.0–4.0 V) ensures compatibility with standard 3.3 V and 5 V logic drivers when used with appropriate level-shifting or gate resistors.

Does IPG20N04S409ATMA1 support paralleling of its two channels for higher current?

Yes - both channels share identical electrical characteristics (R_DS(on), Q_g, V_GS(th)) and thermal coupling via the common drain pad, enabling safe current sharing up to 40 A continuous when driven with matched gate signals and symmetric PCB layout. Layout must ensure equal trace length and impedance to each gate, and thermal vias under the drain pad must be uniformly distributed to avoid hot-spot formation.

How does the integrated body diode perform in reverse recovery compared to discrete Schottky diodes?

The body diode has t_rr = 34 ns and Q_rr = 30 nC at I_F = 17 A, which is slower and higher-loss than optimized Schottky diodes but sufficient for 20–50 kHz PWM in automotive motor drives. Unlike Schottky devices, it withstands 175 °C junction temperature and supports bidirectional current flow without additional components, simplifying half-bridge designs where synchronous rectification is acceptable.

Is the PG-TDSON-8-4 package compatible with automated optical inspection (AOI) after reflow?

Yes - the package's coplanar gull-wing leads and clearly defined solder mask-defined pads meet IPC-A-610 Class 2/3 requirements for AOI. The exposed drain pad is designed for controlled solder paste volume and thermal relief patterns, allowing reliable void detection and wetting assessment. Infineon provides recommended stencil aperture designs and reflow profiles in Application Note AN2010-09 to ensure consistent process yield.