Overview
The STPS340U, produced by STMicroelectronics, is a 40 V, 3 A power Schottky rectifier designed for high-performance applications. This single-chip Schottky rectifier is particularly suited for switch-mode power supplies and high-frequency DC to DC converters. It is available in various surface mount packages, including SMA Flat Notch, SMB, SMB Flat, SMC, and DPAK, making it ideal for low voltage, high frequency inverters, free-wheeling, and polarity protection applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VRRM (Repetitive peak reverse voltage) | 40 | V |
| IF(AV) (Average forward current) | 3 | A |
| IF(RMS) (Forward rms current) | 6 (DPAK) | A |
| IFSM (Surge non-repetitive forward current) | 105 A (SMA Flat Notch), 75 A (Others) | A |
| VF(typ.) (Forward voltage drop) | 0.52 V (Tj = 25°C), 0.57 V (Tj = 125°C) | V |
| Tj(max.) (Maximum operating junction temperature) | 150 | °C |
| Tstg (Storage temperature range) | -65 to +150 | °C |
| Rth(j-a) (Thermal resistance junction to ambient) | 20 °C/W (SMA Flat Notch), 25 °C/W (SMB), 15 °C/W (SMB Flat), 20 °C/W (SMC), 5.5 °C/W (DPAK) | °C/W |
Key Features
- Very small conduction losses
- Negligible switching losses
- Low forward voltage drop
- Low thermal resistance
- Extremely fast switching
- Avalanche rated
- ECOPACK2 component for environmental compliance
- Surface mount packages for easy integration
Applications
- Telecom power supply
- Set-top box power supply
- TV power supply
- Battery chargers
- Low voltage, high frequency inverters
- Free-wheeling and polarity protection applications
Q & A
- What is the maximum repetitive peak reverse voltage of the STPS340U? The maximum repetitive peak reverse voltage is 40 V.
- What is the average forward current rating of the STPS340U? The average forward current rating is 3 A.
- What are the available package types for the STPS340U? The STPS340U is available in SMA Flat Notch, SMB, SMB Flat, SMC, and DPAK packages.
- What is the typical forward voltage drop at 25°C? The typical forward voltage drop at 25°C is 0.52 V.
- What is the maximum operating junction temperature? The maximum operating junction temperature is 150°C.
- What are some common applications of the STPS340U? Common applications include telecom power supplies, set-top box power supplies, TV power supplies, and battery chargers.
- Is the STPS340U environmentally compliant? Yes, it is available in ECOPACK2, which meets environmental compliance standards.
- What is the thermal resistance junction to ambient for the DPAK package? The thermal resistance junction to ambient for the DPAK package is 5.5 °C/W.
- How does the STPS340U handle surge currents? The STPS340U can handle surge non-repetitive forward currents up to 105 A for SMA Flat Notch and 75 A for other packages.
- What is the storage temperature range for the STPS340U? The storage temperature range is -65 to +150°C.
