Overview
The STMPS2171MTR is an enhanced single-channel power switch produced by STMicroelectronics. This device is designed for applications where heavy capacitive loads and short-circuits are likely to occur. It features a 90 mΩ N-channel MOSFET high-side power switch, making it suitable for power distribution in various electronic systems.
The STMPS2171MTR is controlled by a logic enable input and includes several protection mechanisms such as thermal and short-circuit protection, undervoltage lockout (UVLO), and reverse current protection. These features ensure reliable operation and prevent damage to the device under adverse conditions.
Key Specifications
| Parameter | Value |
|---|---|
| Power Load Switch Type | High Side |
| Input Voltage | 2.7 to 5.5 V |
| Current Limit | 1.8 A (constant current mode) |
| No. of Pins | 8 Pins |
| On / Enable Input Polarity | Active High |
| No. of Outputs | 1 Output |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 85°C |
| On State Resistance | 0.11 Ω |
| Thermal Protection | Yes |
| ESD Protection | 8 kV HBM |
| Reverse Current Protection | Yes |
| Fault Blanking | Yes |
| Package Style | SO-8 |
Key Features
- 90 mΩ high-side MOSFET switch for efficient power distribution
- Continuous current rating of 1000 mA
- Thermal and short-circuit protection with overcurrent logic output
- Operating range from 2.7 to 5.5 V
- CMOS and TTL compatible enable input
- Undervoltage lockout (UVLO)
- Maximum standby supply current of 12 μA
- Ambient temperature range from -40 to 85 °C
- ESD protection up to 8 kV HBM
- Reverse current protection and fault blanking
- UL recognized components (UL file number: E354278)
Applications
The STMPS2171MTR is suitable for a variety of applications where reliable power distribution is critical, including:
- Power management in consumer electronics
- Industrial control systems
- Automotive systems (though not specifically automotive qualified)
- Medical devices requiring robust power switching
- Telecommunication equipment
Q & A
- What is the primary function of the STMPS2171MTR?
The STMPS2171MTR is a high-side power switch designed for power distribution in electronic systems, particularly where heavy capacitive loads and short-circuits may occur.
- What is the input voltage range for the STMPS2171MTR?
The input voltage range is from 2.7 to 5.5 V.
- What is the continuous current rating of the STMPS2171MTR?
The continuous current rating is 1000 mA.
- Does the STMPS2171MTR have thermal protection?
Yes, it includes thermal protection that shuts the switch off to prevent damage when the junction temperature rises due to continuous heavy overloads or short-circuits.
- What type of enable input does the STMPS2171MTR use?
The enable input is CMOS and TTL compatible and is active high.
- Does the STMPS2171MTR have ESD protection?
Yes, it has ESD protection up to 8 kV HBM.
- What is the operating temperature range for the STMPS2171MTR?
The operating temperature range is from -40 to 85 °C.
- Is the STMPS2171MTR RoHS compliant?
Yes, it is RoHS compliant.
- What package styles are available for the STMPS2171MTR?
The STMPS2171MTR is available in SO-8, SOT23-5L, and MiniSO-8 packages.
- Does the STMPS2171MTR have reverse current protection?
Yes, it includes reverse current protection.
