Overview
The AUIR3315S is a fully protected 4-terminal high side switch produced by Infineon Technologies. This automotive-grade component is designed to provide robust and reliable power distribution in various automotive applications. The switch features an input signal referenced to Vcc, and it turns on when the input voltage Vcc - Vin exceeds the specified threshold. It includes a range of integrated protections such as over-current shutdown, over-temperature shutdown, ESD protection, and reverse battery protection, making it highly rugged and suitable for demanding automotive environments.
Key Specifications
| Parameter | Min. | Typ. | Max. | Units | Test Conditions |
|---|---|---|---|---|---|
| Vcc Operating Range | 6 | - | 32 | V | - |
| Rds(on) | - | - | 20 | mΩ | - |
| Current Ratio | - | - | 2800 | - | - |
| Programmable Over Current Shutdown | 3 | - | 30 | A | - |
| Over Temperature Shutdown | - | - | 165 | °C | - |
| Maximum Operating Frequency | - | - | 200 | Hz | - |
| Package Types | - | - | TO-220, D²Pak | - | - |
Key Features
- Load current feedback
- Programmable over current shutdown
- Active clamp
- ESD protection
- Input referenced to Vcc
- Over temperature shutdown
- Reverse battery protection
- Charge pump for fast turn-off
- Digital diagnostic capabilities
- Active gate control for lower EMI
Applications
- PTC Heaters
- Automotive power distribution systems
- Load management in automotive electronics
Q & A
- What is the operating voltage range of the AUIR3315S?
The AUIR3315S operates within a voltage range of 6 to 32 volts.
- What types of packages are available for the AUIR3315S?
The AUIR3315S is available in TO-220 and D²Pak packages.
- Does the AUIR3315S have over-temperature protection?
Yes, the AUIR3315S includes over-temperature shutdown protection, which latches off the switch at temperatures above 165°C.
- How is the over-current shutdown threshold adjusted?
The over-current shutdown threshold is adjusted by selecting the proper RIfb resistor value.
- What is the maximum on-resistance (Rds(on)) of the AUIR3315S?
The maximum on-resistance (Rds(on)) of the AUIR3315S is 20 mΩ.
- Does the AUIR3315S have ESD protection?
Yes, the AUIR3315S includes ESD protection to enhance its robustness in automotive environments.
- What is the purpose of the charge pump in the AUIR3315S?
The charge pump in the AUIR3315S is used for fast turn-off of the switch.
- Is the AUIR3315S qualified for automotive applications?
Yes, the AUIR3315S has passed automotive qualification per AEC-Q100 standards.
- How does the AUIR3315S protect against reverse battery conditions?
The AUIR3315S includes reverse battery protection to prevent damage from incorrect battery connections.
- What is the maximum operating frequency of the AUIR3315S?
The maximum operating frequency of the AUIR3315S is 200 Hz.
