BTS244Z E3062A

Overview

The BTS244Z E3062A is a Speed TEMPFET N-Channel enhancement mode MOSFET with logic level input and analog driving capability. It features fast switching up to 1 MHz, potential-free temperature sensor with thyristor characteristics, overtemperature protection, and avalanche rating. Maximum ratings include VDS of 55 V, nominal load current ID(ISO) of 19 A at VGS=4.5V and 26 A at VGS=10V (TC=85°C), continuous drain current ID of 35 A (TC=100°C), pulsed drain current ID puls of 188 A, single pulse avalanche energy EAS of 1.65 J (ID=19 A), power dissipation Ptot of 170 W (TC=25°C), operating temperature Tj from -40 to +175 °C, peak temperature Tjpeak of 200 °C, storage temperature Tstg from -55 to +150 °C. Electrical characteristics at Tj=25°C: V(BR)DSS min 55 V, VGS(th) max 2 V, RDS(on) max 18 mΩ at VGS=4.5V/ID=19A, max 13 mΩ at VGS=10V/ID=19A. Dynamic characteristics: Ciss max 2660 pF, td(on) max 25 ns, tr max 105 ns, td(off) max 60 ns, tf max 40 ns. Gate charge Qg(total) max 130 nC. Reverse diode: IS max 35 A, IFM max 188 A, VSD typ 1.25 V, trr max 165 ns, Qrr max 0.35 μC. Sensor characteristics: VAK(on) typ 1.3 V, IAK(on) max 5 mA, thermal trip temperature TTS(on) typ 160 °C, reset voltage VAK(reset) max 0.5 V.

Feature Summary

• Speed TEMPFET technology providing integrated overtemperature protection via a potential-free temperature sensor with thyristor characteristics.
• Capable of fast switching up to 1 MHz with logic level input and support for analog driving.
• Rated for avalanche energy operation to withstand inductive load switching events.

Applications

• Automotive low-side power switching applications
• Industrial load control requiring temperature monitoring

Procurement Notes

Verify the specific package variant (PG-TO220-5-3, PG-TO220-5-62, or PG-TO220-5-43) required for your design, as pinout and mechanical dimensions differ between them. Confirm RoHS compliance status if manufacturing to strict environmental standards. Ensure thermal management design accounts for the specified junction-to-case thermal resistance and maximum operating temperature limits.

Selection Notes

Select this component when a robust low-side switch with built-in thermal protection is needed. The logic level gate drive allows direct interfacing with standard microcontrollers. Consider the high pulsed current capability and avalanche rating for inductive loads like motors or solenoids. Verify that the chosen package variant matches the PCB footprint and heatsinking requirements of the target application.

Part Context

The BTS244Z belongs to Infineon's Speed TEMPFET family, established for nearly 30 years for automotive and industrial applications. This family provides basic protection via an integrated temperature sensor available on external pins. While historically significant, the datasheet notes this family is not intended for new designs, recommending Classic HITFET™ or HITFET™+ families as alternatives for future projects.

Replacement Considerations

Infineon recommends using Classic HITFET™ or HITFET™+ family products as alternatives for new designs. Specific substitute part numbers are not provided in the source material; consult official Infineon documentation for qualified replacements.

FAQ

What is the function of Pins 2 (A) and 4 (K)?

Pins 2 (Anode) and 4 (Cathode) form a potential-free temperature sensor with thyristor characteristics. They provide overtemperature protection by triggering when the junction temperature exceeds the thermal trip point.

Can the BTS244Z handle inductive load switching?

Yes, the device is avalanche rated with a single pulse avalanche energy (EAS) of 1.65 J at ID = 19 A, allowing it to withstand inductive load switching events.