SIEMENS Smart Low-Side Switch TLE 4224-2 S2 User Guide and Manual
Summary
The TLE 4224-2 is a robust, single-channel Smart Low-Side Switch designed for demanding industrial and automotive applications. Utilizing Smart Power Technology, it provides safe control over both resistive and inductive loads, making it ideal for microcontroller-driven systems (12V/24V). Key features include integrated protections such as thermal shutdown, overload detection, short circuit safeguards, and advanced open load monitoring. This manual serves as a complete technical resource, detailing electrical specifications, operational guidelines, and necessary integration procedures to ensure reliable performance in challenging environmental conditions.
Page 1 Text Content
Preliminary data sheet TLE 4224-2/S2
Smart Low-Side Switch Features Product Summary • Power limitation
Supply voltage VS 6.5 - 45 V
• Thermal shutdown
Drain source voltage VDS(AZ)max 65 V
• Overload protection
• Short circuit protection On resistance RON(typ) 0.25 Ω
• Diagnostic feedback Output current ID 4 A • Overvoltage protection • Reverse polarity protection • µC compatible input • Electrostatic discharge (ESD) protection
P - TO220 -7-1
Application • All kinds of resistive and inductive loads (relays,electromagnetic valves) • µC compatible power switch for 12 and 24 V applications • Solenoid control switch in automotive and industrial control systems
P - TO220 -7-2
General description Single channel Low-Side Switch in Smart Power Technology (SPT) with µC compatible input and an open drain DMOS output stage. The TLE 4224-2 is fully protected by embedded protection functions and designed for automotive and industrial applications.
Block Diagram
VS VC
Thermal overload internal supply
TLE 4224-2
Open Load
Overload
Semiconductor Group Page 20.12.961
Page Summary Contents For SIEMENS Smart Low-Side Switch TLE 4224-2 S2 User Guide and Manual
Manual Details
| Brand | Siemens |
|---|---|
| Pages | 8 |
| File Size | 217.14 KB |
| Published | June 06, 2026 |
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Frequently Asked Questions
What types of loads can I control with this switch?
It is designed to drive inductive loads such as relays and electromagnetic valves, and can be used with resistive and inductive loads.
Does the TLE 4224-2 have built-in protection features?
Yes, it incorporates multiple protections including ESD, reverse polarity, overload detection, and thermal shutdown.
How does the switch detect an open or short circuit condition?
Open load status is monitored by checking the output voltage (off-mode) or monitoring the load current (on-mode), with the threshold programmable via Vc.
What is the acceptable operating temperature range for this device?
The maximum continuous operating temperature range is -40°C to +150°C.