PROFET® BTS 728 L2 is a high side power switch produced by Texas Instruments. It has two channels with rated currents of 4.0A and 6.0A, respectively. It has short circuit protection, overload protection, current limitation, thermal shutdown, overvoltage protection (including load dump), etc. It also has CMOS compatible input, low standby current, fast demagnetization, etc. It is suitable for 5V, 12V and 24V grounded loads, and can replace electromechanical relays, fuses and discrete circuits.
The PROFET® BTS 728 L2 is a dual‑channel N‑channel vertical power MOSFET with an integrated charge pump and CMOS‑compatible input. It provides status feedback, low standby current, and a wide operating voltage range, making it suitable for resistive, inductive, and capacitive loads, including those with high inrush currents.
The device includes multiple protection functions such as short‑circuit, overload, current‑limitation, thermal shutdown, over‑voltage (including load‑dump), reverse‑battery, and ESD protection. Detailed pin definitions, electrical characteristics, and package information are provided for designers.
| Operating voltage (Vob) | 4.75 V – 41 V |
|---|---|
| On‑state resistance (Ron) | 60 mΩ (single channel) |
| Nominal load current (one channel) | 4.0 A |
| Nominal load current (two parallel channels) | 6.0 A |
| Current limitation | 17 A |
| Supply voltage for full short‑circuit protection | 24 V |
| Standby current | 10 µA – 18 µA |
| Input turn‑on threshold voltage | 1.7 V – 3.2 V |
| Output clamp voltage (VON(CL)) | 47 V typ. |
| Package | P‑DSO‑20‑9 |
The device operates from 4.75 V up to 41 V.
One channel can handle 4.0 A, and two parallel channels can handle 6.0 A.
The device is supplied in a P‑DSO‑20‑9 package.