Infineon Technologies BTS244Z E3062A

Overview

BTS244Z E3062A from Infineon Technologies is a Speed TEMPFET® N-channel logic-level power MOSFET with integrated potential-free thyristor-based temperature sensor, rated for 55 V V_DS, 13 mΩ R_DS(on) at V_GS = 10 V, and 35 A continuous drain current at T_C = 100 °C; used in automotive load switching with overtemperature protection and analog temperature sensing.

For engineers reviewing the BTS244Z E3062A datasheet, BTS244Z E3062A pinout, BTS244Z E3062A application, or BTS244Z E3062A equivalent, this device delivers fast switching up to 1 MHz, avalanche-rated ruggedness, AEC-Q101 qualification, and direct thermal trip detection via integrated sensor pins (A/K), enabling compact, self-protecting high-side switch designs in engine control units and body electronics.

Technical Context

The BTS244Z integrates a power MOSFET and a thyristor-type temperature sensor on a single die, sharing no electrical connection between sensor and power paths-enabling galvanically isolated thermal monitoring. Its gate threshold voltage (1.2–2.0 V) supports direct microcontroller drive without level-shifting, while its 1.65 J single-pulse avalanche energy rating ensures robustness against inductive load transients.

Sensor operation relies on forward-biased anode-cathode (A–K) conduction triggered at ~150–170 °C, with 0.5 V reset voltage and <2.5 μs turn-off time when G+A and K+S are shorted. The device's R_thJC of 0.88 K/W enables high-power dissipation (170 W at T_C = 25 °C) in PG-TO220-5-3 package with exposed drain tab.

Key Specifications

Pinout & Package

PG-TO220-5-3 package with isolated tab (Drain-connected), 5-pin through-hole mounting, RoHS-compliant green finish, and AEC-Q101 qualification for automotive use.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar intelligent power switch applications.

Compared with BTS244R and BTS244N, the BTS244Z E3062A offers optimal thermal resistance (R_thJC = 0.88 K/W) in the PG-TO220-5-3 configuration, making it preferred for high-power density layouts where heatsink contact efficiency is prioritized over creepage or leadframe form factor.

Availability

BTS244Z E3062A is available at Aetrix Electronics and suitable for automotive engine control, HVAC actuation, LED lighting, and electric power steering requiring stable component supply, AEC-Q101 compliance, and integrated thermal protection.

Supply support for BTS244Z E3062A 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 is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs, with global manufacturing and quality certification aligned to IATF 16949.

The Speed TEMPFET® product line delivers intelligent power switches combining MOSFETs and monolithic temperature sensors for automotive-grade load protection, targeting applications where space, reliability, and autonomous thermal response are critical.

FAQ

Can BTS244Z E3062A be used in high-side or low-side configurations?

Yes, BTS244Z E3062A is optimized for high-side switching due to its source-referenced gate drive and drain-connected tab, but it supports low-side use with appropriate gate biasing. In high-side mode, the source connects to load, enabling ground-referenced current sensing; in low-side, the drain ties to supply, requiring floating gate drive for full enhancement.

How does the integrated temperature sensor interface with a microcontroller?

The sensor uses pins A and K as a thyristor pair: at trip temperature, it latches ON with ~1.3 V forward drop; reset requires applying <0.5 V across A–K for ≥100 μs. An external pull-up and comparator detect latch state; no ADC is needed. Application Note "Temperature sense concept – Speed TEMPFET" details biasing and timing.

What is the maximum safe operating frequency for PWM switching?

With RG = 2.2 Ω and V_GS = 4.5 V, the device achieves t_d(on) = 25 ns and t_f = 40 ns, supporting clean 1 MHz PWM at ≤50% duty cycle. Above 500 kHz, gate drive strength and PCB layout parasitics become limiting; thermal limits (T_j ≤ 175 °C) govern sustained frequency based on I_D and R_DS(on) losses.

Is avalanche energy rating tested per JEDEC JESD24-11?

Yes, the 1.65 J single-pulse E_AS rating is measured per JEDEC JESD24-11 using ID = 19 A, R_GS = 25 Ω, and standardized test conditions. This qualifies the device for unclamped inductive switching in automotive solenoids and motors where snubberless operation is required.